Today, a technology known as “Crucible Melting Ultrasonic Atomization” is quietly changing this situation. How can it transform solid metal into precision spherical powder particles within just one hour? This article provides an in-depth analysis of its technical principles and, through practical case studies, reveals how this technology has become a breakthrough solution for new material development and high-end powder production.

I. Technical Core: From “Humidifier” to “Powder Production Machine”

The basic principle of ultrasonic atomization is not unfamiliar. It is similar to the air humidifiers used in daily life, where high-frequency vibrations break liquid into tiny droplets. However, when the medium changes from room-temperature water to molten metal at temperatures exceeding one thousand degrees Celsius, the challenge becomes far greater.

Technical Process:

Induction Melting:
Metal raw materials (blocks, granules, pure elements, etc.) are placed in a specially designed crucible and rapidly heated to a molten state through an induction coil. This process can be conducted under vacuum or inert gas protection to effectively prevent oxidation and elemental loss.

Ultrasonic Atomization:
The molten metal is precisely guided onto a thin metal strip (vibrating plate) connected to an ultrasonic transducer. The transducer drives the vibrating plate at high frequencies such as 20 kHz, 40 kHz, or 60 kHz, allowing the molten metal to spread evenly into a thin liquid film.

Powder Formation:
When the vibration energy reaches a critical threshold, the liquid film breaks apart and ejects countless micron-sized droplets. These droplets travel through the atomization chamber in a parabolic trajectory and rapidly cool and solidify, ultimately forming metal powders with high sphericity and uniform particle size distribution.

Practical Recommendation:
For researchers, understanding the coordinated control of frequency and flow rate is key. Higher ultrasonic frequencies generally help produce finer powders, while the flow rate of molten metal directly affects atomization stability and particle size distribution. During process development, small-scale experiments should be conducted to identify the optimal frequency-flow parameter combination for specific materials.

II. Comparison with Traditional Technologies: A Dual Revolution in Efficiency and Flexibility

To better illustrate the advantages of ultrasonic atomization technology, the following comparison is made with the conventional mainstream technology—Electrode Induction Gas Atomization (EIGA).

Insights and Perspectives:

Traditional gas atomization technology resembles “heavy industry,” focusing on scale and stability, making it suitable for large-scale standardized production. In contrast, ultrasonic atomization technology is more like a “precision laboratory,” removing restrictions on raw material forms and returning control of powder production to researchers and flexible manufacturers.

This is not merely a technological replacement but the creation of an entirely new application scenario—rapid validation, customized development, and on-demand production. For innovative enterprises such as Sunway New Material, identifying and serving this specialized demand is key to achieving differentiated competition and supporting national new-material development strategies.

III. Practical Cases: How Does the Technology Solve Real Challenges?

Case 1: Additive Manufacturing – Medical-Grade Aluminum Alloy Powder Production

Company:A medical device manufacturer.

Requirement:Production of AlSi10Mg aluminum alloy powder with high sphericity and low oxygen pickup for 3D-printed orthopedic implants. The powder must exhibit excellent flowability and a narrow particle size distribution (15–53 μm) to ensure component density and surface quality.

Solution:An ultrasonic atomization powder production machine was used under argon protection with a 60 kHz ultrasonic frequency. Oxygen increase was controlled below 50 ppm, while powder particle size distribution was regulated by adjusting guide flow speed and ultrasonic power.

Results:Powder sphericity reached ≥0.93, D50 was approximately 45 μm, and flowability was excellent. The powder was successfully applied in the SLM process, with printed parts meeting medical implant standards.

Key Takeaway:Ultrasonic atomization technology enables highly consistent and customized small-batch powder production, making it particularly suitable for high-end applications such as medical additive manufacturing.

Case 2: A High-End 3D Printing Service Provider – Achieving “Customized Powder Freedom”

Background:The company handled multiple varieties of low-volume metal printing orders. Purchasing commercial powders was costly, and fixed particle size distributions limited process optimization.

Solution:The company purchased Sunway New Material’s Crucible Melting Ultrasonic Atomization Powder Machine and established its own small-batch powder production line.

Practical Results:

Flexible Production:Particle size distribution can be adjusted according to customer requirements and printer specifications. For example, finer powders can be produced for intricate structures.

Reduced Dependency:The company directly purchases Al-Si-Mg master alloy blocks for melting and atomization, eliminating reliance on expensive pre-alloyed powder suppliers.

Cost Reduction and Efficiency Improvement:
Overall powder costs decreased by 30%, while customized powders improved print yield and component performance.

Key Takeaway:Internalizing critical supply chain processes while maintaining flexible customization capabilities is an effective strategy for high-end manufacturing service providers to establish competitive advantages.

IV. Future Outlook: Where Are the Boundaries of Ultrasonic Atomization Technology?

Currently, equipment represented by Sunway New Material’s Crucible Melting Ultrasonic Atomization Powder Machine can stably process non-ferrous metals and alloys with melting points up to 1300°C, including tin, zinc, magnesium, aluminum, lead, and their multi-component alloy systems. Its applications are rapidly expanding from laboratory research into high-end small-batch production environments.

Potential Future Development Directions:

Expansion of Material Systems:
With advances in vibrating plate materials and cooling technologies, processing higher-melting-point alloys such as certain copper alloys and titanium alloys may become feasible.

Process Intelligence:
Integration of online monitoring and AI control systems could enable real-time feedback and closed-loop regulation of powder particle size and sphericity, creating highly automated intelligent powder production units.

Industrial Ecosystem Integration:
Linking material design software with additive manufacturing process databases could establish integrated digital solutions covering “material design – powder production – component manufacturing.”

Ultrasonic atomization powder production technology is opening a new pathway for non-ferrous metal powder manufacturing through its unique flexibility and cost-effectiveness. It frees new material development from dependence on large-scale equipment and lengthy production cycles while giving small and medium-sized high-end manufacturers greater autonomy in powder customization.

The practices of companies such as Sunway New Material demonstrate that China’s high-end equipment innovation is progressing from “following” to “running alongside” and even “leading” global developments. By solving specific industrial challenges, these innovations are providing strong technological momentum for manufacturing transformation and upgrading. As the technology continues to mature and its applications expand, this powder manufacturing revolution driven by ultrasonic technology is expected to have an even greater impact on the future of advanced manufacturing.

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I. Precision Ultrasonic Atomization for High-Quality Metal Powder Production
The equipment adopts a “crucible melting + ultrasonic atomization” process route. During production, the metal raw materials are first heated to a fully molten state in the melting system, after which the melt is delivered to the ultrasonic atomization nozzle at a stable flow rate.
Under the action of high-frequency ultrasonic vibration, a liquid film forms on the surface of the molten metal and is continuously broken into micron-sized droplets through ultrasonic cavitation effects and surface tension wave effects. When the vibration energy reaches the critical value of the liquid surface tension, the droplets detach from the vibrating surface to form uniform mist droplets, which are then rapidly cooled and solidified in a high-purity argon or nitrogen protection environment, ultimately forming high-quality metal powders.
The entire powder production process is continuous and stable with a high degree of automation, effectively ensuring powder particle size distribution and product consistency.

II. Four Core Advantages Empower Efficient and Stable Production

1.Superior Powder Quality
By adopting advanced ultrasonic atomization technology, the produced powder can achieve a sphericity of over 95%, with concentrated and uniform particle size distribution, excellent flowability, and powder spreading performance. Meanwhile, the fully enclosed inert gas protection environment effectively controls oxygen content, with oxygen increase as low as 50–150 ppm, making it especially suitable for the preparation of powders from active metal materials such as magnesium alloys.

2.Higher Production Efficiency
The powder yield of the equipment can exceed 95%, effectively reducing raw material loss. The automated control system enables coordinated operation throughout the entire process of melting, atomization, and collection, supporting long-term continuous and stable production while reducing manual intervention and improving production efficiency and batch consistency.

3.More Significant Energy Saving and Environmental Protection
Compared with traditional gas atomization processes, ultrasonic atomization does not require a high-pressure gas system. Vibration energy replaces part of the gas kinetic energy, reducing overall energy consumption by more than 90%. At the same time, the process adopts a purely physical atomization method with no wastewater discharge, and the inert gas can be recycled, providing both economic and environmental benefits.

4.Wider Material Adaptability
The equipment is suitable for the preparation of powders from aluminum, magnesium, copper, zinc, tin, lead, and various alloy materials. It also supports new alloy development and metal scrap recycling for powder production, meeting diversified needs for scientific research and industrial-scale production.

III. Multi-Industry Applications to Meet High-End Powder Manufacturing Demands
With excellent powder quality and stable process performance, the equipment is widely used in high-end fields such as metal additive manufacturing (3D printing), powder metallurgy, and new material research and development.
It is particularly suitable for volatile metals and alloy materials with melting points below approximately 1300°C that are prone to evaporation in plasma environments, such as Sn, Zn, Mg, Pb, and Al, providing reliable equipment support for the preparation of high-performance metal powders.

IV. Independent R&D and Intelligent Manufacturing Providing One-Stop Powder Production Solutions
Sunway New Materials has a professional R&D team and a complete independent manufacturing system, accumulating extensive experience in the field of metal powder preparation equipment and processes. The company owns multiple independent intellectual property rights and maintains long-term cooperation with universities and research institutes. Relying on standardized production bases, a strict quality management system, and extensive project experience, Sunway New Materials has provided reliable ultrasonic atomization powder making solutions for customers in fields such as 3D printing and powder metallurgy.

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However, in actual production, many companies have found that screening equipment that previously met requirements begins to experience mesh clogging, reduced capacity, and unstable classification performance when handling finer particles.So why is ultrafine powder becoming increasingly difficult to screen? And how can manufacturers balance screening accuracy and processing capacity while meeting ever-increasing production requirements?

I. Why Is Ultrafine Powder Screening Becoming More Difficult?

In recent years, new energy materials such as sulfide electrolytes, high-nickel single-crystal materials, and single-crystal fine-particle lithium iron phosphate have continued to evolve toward finer particle sizes, placing increasingly stringent demands on particle size distribution and product consistency. While finer particles help improve material performance, they also create greater challenges for the screening process.

Compared with conventional powders, ultrafine powders are more prone to agglomeration, adsorption, and screen aperture blockage. In actual production, many companies encounter the same situation: screening performance is normal when the equipment starts operating, but as runtime increases, screening efficiency gradually declines, mesh clogging becomes more frequent, and processing capacity decreases accordingly.

Especially for ultrafine powders with a D50 particle size below 1 μm, the challenge is no longer simply achieving particle separation. The real difficulty lies in maintaining stable throughput and continuous operation while ensuring precise particle size control. This has become a common issue in the screening of new energy materials today.

II. What Is the Core Principle of the High-Speed Intelligent Screening Machine?

To address the screening requirements of ultrafine powders in the new energy industry, Navector (Shanghai) Screening Technology Co., Ltd. comprehensively upgraded its original ultrasonic fine-particle screening machine and developed a new-generation high-speed intelligent screening machine.

Unlike conventional vibrating screens that mainly rely on standard vibration force, the high-speed screening machine adopts low-frequency, high-speed vibration technology combined with a 0–3000 rpm stepless speed control system, enabling flexible adjustment according to different material characteristics.

During the screening process, materials are rapidly dispersed and evenly distributed across the screen surface, reducing particle accumulation and agglomeration. At the same time, the optimized material movement trajectory increases the frequency of contact between particles and the screen mesh, allowing fine particles to pass through the screen more efficiently.

To further improve screening efficiency, the equipment retains the classic flower-disc adjustment structure, allowing screening conditions to be adjusted for different operating requirements and achieving simultaneous optimization of screening accuracy and processing capacity.

In addition, the machine is equipped as standard with Magnatt high-performance screen mesh, featuring high tension, excellent wear resistance, and high screening efficiency. This effectively reduces mesh blockage and particle embedding, further improving continuous operation stability.

III. What Advantages Does the High-Speed Screening Machine Have Compared with the Original Ultrasonic Fine-Particle Screening Machine?

For conventional fine powder screening applications, traditional ultrasonic fine-particle screening machines can already meet production requirements. However, as ultrafine powders such as sulfide electrolytes, high-nickel single-crystal materials, and single-crystal fine-particle lithium iron phosphate become increasingly common, manufacturers are demanding higher screening accuracy, greater throughput, and improved continuous operation stability. The Navector High-Speed Intelligent Screening Machine was developed as an upgraded solution based on the original ultrasonic fine-particle screening machine and is better suited for ultrafine powder applications.

From practical applications, the two types of equipment are not simple replacements for one another. Ultrasonic fine-particle screening machines are more suitable for conventional fine powder screening, while high-speed intelligent screening machines demonstrate more significant advantages in ultrafine powder processing, high-capacity production, and long-term continuous operation. For new energy material manufacturers, when issues such as frequent mesh clogging, insufficient capacity, or difficulty controlling particle size begin to appear, high-speed screening machines often provide a more stable solution.

IV. In Which Applications Are the Advantages of High-Speed Screening Machines More Evident?

For conventional particles or standard fine powders, traditional screening equipment is usually sufficient. However, as materials become increasingly ultrafine or production lines demand higher capacity and greater operational stability, the advantages of high-speed screening machines become more pronounced.

For micron-scale powders such as sulfide electrolytes, high-nickel single-crystal materials, single-crystal fine-particle lithium iron phosphate, and conductive additives, the combination of fine particle size, strong agglomeration tendencies, and difficult screening characteristics often makes it challenging for conventional screening machines to balance accuracy and throughput. Through low-frequency high-speed vibration and stepless speed adjustment, high-speed screening machines improve material dispersion and screening efficiency while reducing the risk of mesh blockage.

At the same time, for production lines requiring long-term continuous operation, the high-speed screening machine is equipped with Magnatt high-performance screen mesh, which extends screen service life, reduces downtime for maintenance, and delivers more stable processing capacity while maintaining screening accuracy.

Simply put, when production processes encounter problems such as poor screening efficiency of ultrafine powders, frequent mesh blockage, insufficient throughput, or unstable continuous operation, the advantages of high-speed screening machines become much more apparent.

V. What Problems Does the High-Speed Screening Machine Actually Solve in Real Production?

From an engineering perspective, the purpose of purchasing screening equipment is not simply to add another machine, but to eliminate production bottlenecks.

For ultrafine powder manufacturers, the high-speed screening machine primarily addresses three core challenges:

First, it reduces mesh blockage and increases effective equipment operating time.

Second, it improves classification stability and enhances product particle size consistency.

Third, it solves capacity limitations and increases production efficiency while maintaining product quality.

As new energy materials continue to develop toward finer particle sizes, these three issues will increasingly affect manufacturing costs and market competitiveness.

VI. What Is the Future Direction of Ultrafine Powder Screening?

From an industry perspective, ultrafine powder screening technology is expected to develop in three major directions.

First, screening particle sizes will continue to become finer, gradually moving from micron-scale to submicron-scale applications.

Second, equipment processing capacity will continue to improve, enabling simultaneous growth in both screening accuracy and production throughput.

Third, screening systems will become increasingly intelligent, utilizing automatic parameter adjustment and online monitoring to achieve more stable production processes.

For new energy material manufacturers, screening equipment is no longer merely auxiliary equipment on the production line. It is becoming a critical process technology that directly influences product quality and manufacturing efficiency.

To meet the evolving market demands of solid-state batteries, high-nickel materials, and advanced functional powders, the Navector High-Speed Intelligent Screening Machine combines low-frequency high-speed vibration technology, a stepless speed control system, and high-performance screen mesh to provide a more efficient and stable solution for ultrafine powder screening, while offering reliable screening technology support for the continued development of the new energy materials industry.

<p>The post Why Is Ultrafine Powder Becoming Increasingly Difficult to Screen? An Analysis of the Application of Navector High-Speed Screening Machines in New Energy Material Screening first appeared on Navector-industrial screens, sifting equipment, ultrasonic vibrating screen, separation equipment, gyratory screen, self-cleaning filters,vibro sifter,Gyratory sifter,vibrotary screener,Tumberl Screener.</p>

I. What Is the Working Principle of This Equipment?
The microsphere sieve adopts negative-pressure airflow-driven dynamic screening technology. By connecting a vacuum cleaner to the screening chamber, a pressure gradient of -0.1 to 0.3 MPa is formed. After the microsphere slurry enters the screening system, the high-speed airflow released by the rotating nozzle drives the material to move in a spiral motion across the screen surface. Taking the PLGA microsphere processing of a biopharmaceutical company as an example, the equipment completed a screening process originally requiring 2 hours within just 30 minutes through the combined action of centrifugal force and airflow, while achieving screening precision down to 3 μm. It is worth noting that the built-in ultrasonic vibration module continuously eliminates electrostatic adsorption on the screen surface, a feature that is especially important when processing low-density PLLA microspheres.

II. Why Can It Solve the Agglomeration Problem?
To address the common agglomeration phenomenon of sustained-release microspheres, the equipment achieves deagglomeration through three mechanisms. First, under the action of airflow shear force, the van der Waals forces between microsphere particles are effectively broken. Second, the pulsating flow field generated by the three-dimensional vibration of the screen surface promotes non-uniform movement of the microsphere clusters. Finally, the customized screen aperture distribution design plays a key role. Taking a three-layer Japanese imported filter sheet as an example, the aperture gradually transitions from 80 μm to 20 μm, forming a stepwise deagglomeration path of “coarse screening – fine screening – filtration.” Actual test data from a medical aesthetics company showed that when processing PCL microsphere slurry, the deagglomeration rate increased to 98%, while the final product fluidity met the USP<41> standard.

III. Who Needs This Equipment Most?
The core target users of this equipment include three categories: 1) chromatography filler manufacturers whose silica gel/polymer microspheres require precise classification; 2) drug-loaded microsphere R&D institutions with strict particle size distribution requirements for polymer microspheres such as PLGA and PLA; and 3) medical aesthetics raw material suppliers that process implant-grade microspheres such as PLLA and PCL. According to feedback from a diagnostic reagent company, when processing fluorescent microspheres, the equipment not only achieved a breakage rate below 0.3%, but also shortened sterilization validation time to one-third of traditional steam sterilization through its SIP function.

IV. Which Production Stages Can Use This Equipment?
The equipment runs through the entire microsphere production process. During the pretreatment stage, it can perform preliminary classification and impurity removal for microsphere slurry. In the intermediate purification stage, it supports multi-stage washing operations and achieves rapid solid-liquid separation through negative-pressure filtration. In the final formulation stage, it can complete drying and sterile packaging. Taking a certain embolic microsphere manufacturer as an example, the company integrated six originally separate devices, including centrifuges and vacuum drying ovens, through this equipment, reducing production line floor space by 40% and lowering energy consumption by 28%.

V. Under What Working Conditions Is It More Effective Than Traditional Sieves?
The equipment performs particularly well in three special scenarios. First, when processing temperature-sensitive microspheres, such as protein-loaded microspheres, the equipment can precisely control temperature within 30-80°C through its hot air circulation system. Second, during the screening of high-viscosity slurry, the fully enclosed system combined with a vacuum degree of 0.2 MPa can achieve a continuous processing capacity of 5 kg per hour. Third, in applications with stringent sterile requirements, the equipment successfully passed FDA on-site inspections through the use of 316L stainless steel material (Ra < 0.4 μm) and CIP/SIP functions. A chromatography filler manufacturer reported that when processing silica microspheres, the cross-contamination rate was reduced below the detection limit.

VI. How to Choose the Right Model for Your Material?
Model selection should comprehensively consider three factors. First is processing scale. For laboratory-stage applications, a compact model with a 3.55 L working chamber is recommended, capable of handling 0.1-0.7 kg per batch. For pilot-scale production, a 14.5 L medium-sized model is recommended, balancing a processing capacity of 1-1.5 kg with flexible screen configurations (20-500 μm apertures optional). For industrial-scale production, a 30.5 L large-scale model is required, supporting continuous operation of 10 kg per batch. Second is process complexity. If multi-stage washing and drying are involved, a version integrated with a hot air system should be selected. Third is cleanliness requirements. For GMP workshop applications, explosion-proof motors and fully stainless-steel electrical control cabinets are recommended. During model selection, a cell culture matrix manufacturer determined the necessity of a three-layer screen configuration through simulated working-condition testing, ultimately increasing product yield by 12 percentage points.

Want to obtain a customized solution for your material? Call 15601937055 now. We provide free material testing services. Let the microsphere sieve help you break through process bottlenecks and achieve an upgraded transformation from slurry to high-quality products!

<p>The post Three Major Challenges in Sustained-Release Microsphere Slurry Processing: How Can Microsphere Sieves Achieve Efficient Screening, Prevent Agglomeration, and Meet Sterile Requirements? first appeared on Navector-industrial screens, sifting equipment, ultrasonic vibrating screen, separation equipment, gyratory screen, self-cleaning filters,vibro sifter,Gyratory sifter,vibrotary screener,Tumberl Screener.</p>

I. Why Is Powder Screening Becoming More Difficult?
In the past, many factories treated screening simply as a process of “removing oversized particles.” However, modern industrial production has already shifted from coarse screening to precision classification.
Taking lithium battery materials as an example, some cathode and anode materials are now screened within the 20μm–300μm range; metal 3D printing powders require increasingly narrow particle size distributions; and the food and pharmaceutical industries are placing greater emphasis on foreign particle control and dust-free screening. This means screening equipment must not only “allow material to pass,” but also maintain stable particle size distribution, prevent fine powders from escaping through the mesh, and avoid coarse particles mixing into qualified products.
The problem is that powders are not ideal “independent particles.”
In actual production, many materials are affected by static electricity, humidity, temperature, particle morphology, and particle size distribution. Especially for ultrafine powders, once particle size drops below 100μm, van der Waals forces between particles become significantly stronger, and slight moisture absorption may cause soft agglomeration. Meanwhile, materials such as metal powders, carbon powders, and graphite are prone to electrostatic charging during friction, causing them to adhere to the screen mesh.
Many production sites observe that screening works normally when the machine first starts, but after several hours of continuous operation, the passing rate begins to decline. In most cases, this does not mean the equipment is “broken,” but rather that the powder state itself has changed.

II. Why Do Screening Problems Often Appear in the Later Stage of Production?
Many process engineers have had similar experiences.
The same batch of material performs well during laboratory testing, but once transferred to the production line, issues such as mesh clogging, reduced throughput, or material mixing appear. The reason is often that laboratory conditions are completely different from continuous production conditions.

For example, moisture content. Some food additives may have a moisture content of only 0.3% during storage, but seasonal humidity changes in summer can create a slight deliquescent layer on the powder surface. Particles begin sticking together, forming “false particles” during screening, which reduces screening accuracy.

Another example is static electricity. Lithium battery materials, resin powders, and non-metallic powders continuously rub against each other during high-speed vibration, causing charge accumulation on particle surfaces. Once static electricity reaches a certain level, fine powders directly adhere to the screen surface. Even if the mesh aperture is large enough, the powder still cannot pass through smoothly.

Some issues also originate from particle size distribution. If the proportion of “near-size particles” is too high, meaning many particles are close in size to the screen aperture, these particles continuously roll and wedge into the mesh openings, eventually causing blockage. In many screening processes above 300 mesh, this is the core issue.
Therefore, truly stable screening is not simply about “strong vibration,” but about creating the proper material movement trajectory on the screen surface.

III. Overview of Mainstream Screening Equipment: Major Differences in Working Principles
The core difference among common industrial screening equipment lies in the “material movement method.”

Conventional rotary vibrating screens are typical three-dimensional vibrating screens. Through vibration motors, materials move across the screen surface in rotational and jumping motions. They are suitable for standard powder classification and impurity removal, offering strong versatility and wide application ranges.

Ultrasonic vibrating screens add high-frequency, low-amplitude ultrasonic vibration on top of conventional vibration. The ultrasonic system creates high-frequency micro-vibrations on the screen mesh, keeping materials in a suspended state and reducing particle adhesion and mesh clogging. For easily agglomerated, highly electrostatic, and ultrafine powders, ultrasonic screening is usually more stable. Navector’s ultrasonic vibrating screens are developed based on this principle and are mainly used for fine powder classification and precision screening.

Tumbler screens are closer to manual screening actions.
Their core feature is low-frequency tumbling motion. By simulating the “rolling + throwing” trajectory of manual screening, materials stay on the screen surface for a longer path. Compared with ordinary vibrating screens, tumbler screens have greater advantages in high-capacity and high-precision screening, especially for granular and high-density materials. The NTS Series Tumbler Screen can also be equipped with an ultrasonic system for high-capacity ultrafine powder screening.

Negative pressure airflow screens follow an entirely different concept.
Instead of relying on traditional vibration force, they use airflow conveying and centrifugal separation for screening. For lightweight, floating, and easily clogging ultrafine powders, airflow screens reduce material accumulation and improve passing rates. Materials such as carbon powder, graphite, and light calcium carbonate are often processed using airflow screening or cyclone screening solutions.
In addition, specialized equipment such as lithium battery industry small particle screening machines and non-metallic screening machines are designed specifically for high static electricity environments, metal contamination control, and continuous fine particle screening.

IV. How to Match Equipment with Powder Characteristics? Common Powder Selection Guide
The most common mistake in equipment selection is focusing only on mesh size.
In reality, screening performance is usually determined by the combined influence of several factors: particle size distribution, moisture content, bulk density, electrostatic characteristics, temperature, and target processing capacity.

For conventional granular powders such as sugar, salt, plastic pellets, and standard chemical granules, rotary vibrating screens are usually sufficient. These materials generally have good flowability and low screen adhesion, so throughput and operational stability are the main concerns.

If the material particle size exceeds 300 mesh, especially for lightweight powders, ultrafine powders, and easily agglomerated powders, ultrasonic vibrating screens are more suitable because ultrasonic vibration reduces particle adhesion and friction while improving mesh passing efficiency.

For lithium battery materials, graphite, carbon powder, and high-nickel materials, both electrostatic control and metal contamination prevention must be considered. In these applications, ultrasonic screening systems combined with non-metallic contact structures are typically preferred.

If the production line requires both high capacity and high precision, while the material particles are relatively uniform—such as fertilizers, glass beads, resin pellets, and metal granules—tumbler screens are generally more suitable. Their low-speed flexible motion causes less particle damage and provides a longer screening trajectory.

For lightweight powders that easily float, agglomerate, or have extremely poor flowability, negative pressure airflow screens or cyclone screens should be considered. These systems disperse materials through airflow, reducing accumulation on the screen surface.

Another often overlooked factor is temperature. Some heat-sensitive materials may soften or adhere due to localized temperature rise during prolonged high-frequency vibration. Therefore, many factories prefer low-frequency screening structures in continuous production to reduce heat accumulation.

V. Summary and Equipment Selection Recommendations
At its core, screening equipment selection is about matching “powder behavior.”
A truly mature equipment selection process does not start with the brand, but with analysis of the material itself. What is the particle shape? Is the material prone to agglomeration? Does the moisture content fluctuate? How narrow is the target particle size range? Is static electricity present? These factors determine the required movement mode, screen structure, and anti-clogging solution.
Navector Screening Technology has long specialized in the field of fine screening. Its products include ultrasonic vibrating screens, tumbler screens, ultrasonic tumbler screens, negative pressure airflow screens, lithium battery industry small particle screening machines, non-metallic screening machines, microsphere screens, and more. Customized screening solutions and material testing support can be provided according to different powder processing conditions.
For the powder industry, screening has never been simply about “passing through a screen.” It is more like a control engineering process centered on particle behavior. The better one understands powder behavior, the better one can truly optimize screening performance.

<p>The post What Screening Equipment Is Suitable for Different Powders? An Engineering Guide to Understanding Powder Screening Equipment Selection Logic first appeared on Navector-industrial screens, sifting equipment, ultrasonic vibrating screen, separation equipment, gyratory screen, self-cleaning filters,vibro sifter,Gyratory sifter,vibrotary screener,Tumberl Screener.</p>

I. Many Screening Problems Actually Occur During the “Material Movement” Stage

Screening is not simply about “blocking large particles while letting small particles pass through.” Once powder enters the screen surface, what truly determines screening efficiency is whether particles can contact the screen openings, overturn, stratify, and complete passage through the mesh within a limited amount of time.

For example, in lithium battery cathode and anode materials, fine particles tend to generate static electricity through friction. Static electricity causes powders to attract each other and form slight agglomeration. Even if the particles are smaller than the screen openings, they may still fail to pass through smoothly. Many production sites find that the screen mesh does not appear completely blocked, yet the screening rate drops significantly. This is essentially “false mesh clogging.”

Another example is metal powders and 3D printing powders, which are high-density materials that are more prone to density stratification. Coarse particles settle quickly while fine particles float, eventually leading to disordered screening trajectories and material mixing.

Therefore, screening machine selection should not begin with equipment models, but with an evaluation of the material’s “movement behavior” on the screen surface.

II. Several Common Misconceptions in Screening Machine Selection

Many companies easily fall into the mindset that “bigger parameters are always better.”

For example, some users believe that stronger vibration means higher screening efficiency. However, for ultrafine powders, excessive amplitude can actually destroy particle stratification. Materials continuously bounce on the screen surface without stably contacting the mesh openings, eventually resulting in a situation where “the material moves quickly, but screening cannot be completed effectively.”

Some users only focus on mesh size while ignoring particle size distribution. In reality, even for the same 300-mesh powder, the screening difficulty can vary significantly depending on the material. The more concentrated the particle size distribution, the easier it is to achieve precise classification; meanwhile, materials with wide particle size distribution are more likely to cause mesh clogging and entrainment.

Another common issue is ignoring continuous operation conditions.

Many screening tests only run for more than ten minutes, while actual production often requires continuous operation for over 8 hours. After long-term operation, temperature rise, humidity changes, and static electricity accumulation all affect the screening condition. Some equipment performs normally at startup, but efficiency continuously decreases later. Essentially, this is caused by insufficient self-cleaning capability of the screen surface.

This is also why ultrasonic vibrating screens, ultrasonic tumbler screens, and negative pressure airflow screens have become increasingly popular in recent years. Many industries are not simply pursuing higher output, but rather solving the problem of “continuous and stable screening.”

III. How Should Screening Machines Actually Be Selected?

Essentially, screening machine selection is not about “choosing an equipment model,” but about finding the most suitable screening method for material movement under different process conditions.

1.First is material characteristics.

Whether the powder tends to agglomerate, carries static electricity, has regular particle shapes, or maintains stable bulk density will all directly affect screening conditions. Lightweight powders such as graphite, carbon powder, and resin powder easily generate static electricity during screening due to friction, causing slight particle attraction. Even when particle sizes are smaller than the mesh openings, they may still fail to pass through smoothly. Meanwhile, metal powders and high-density materials are more prone to rapid settling, resulting in uneven stratification on the screen surface.

If the material itself has poor flowability or obvious agglomeration, simply increasing vibration force is often ineffective. Under such conditions, ultrasonic vibrating screens or ultrasonic tumbler screens are usually more suitable, as high-frequency micro-vibration reduces particle adhesion and mesh clogging probability.

2.The second factor is production capacity requirements.

During production expansion, many companies tend to overlook screen surface utilization. Some equipment may have high theoretical processing capacity, but during actual operation, materials only concentrate in localized areas of the screen mesh, meaning the effective screening area is actually quite limited.

For example, tumbler screens use low-speed three-dimensional tumbling motion, allowing materials to spread evenly across the entire screen surface and increasing particle retention time. Therefore, they are more suitable for high-capacity, high-precision classification applications. Conventional vibrating screens, on the other hand, are more suitable for small-to-medium capacity and rapid separation scenarios.

If the production line requires continuous 24-hour operation, it is also necessary to focus on long-term operational stability, including screen mesh lifespan, temperature rise, dust control, and maintenance frequency.

3.The third factor is screening mesh size, or particle size requirements.

Generally speaking, the higher the mesh size, the greater the screening difficulty. Especially beyond 200 mesh, many powders are no longer dealing with simple “particle passage” issues, but rather adhesion, friction, and static electricity between particles and the screen mesh.

Ultrafine powders have very limited effective mesh-passing time on the screen surface. If particles cannot stratify quickly enough, mesh clogging or false blocking will easily occur. Therefore, high-mesh screening depends more on equipment motion trajectory and mesh cleaning capability rather than vibration strength alone.

For ultrafine powders ranging from 20μm to 300μm, many industries adopt ultrasonic screening technology by superimposing high-frequency, low-amplitude vibration waves onto the screen mesh, keeping powders in a micro-suspension state and reducing adhesion and wedging blockage.

4.The fourth factor is material moisture content and temperature.

Many screening problems are actually caused by environmental changes.

For example, food additives, chemical powders, and lithium battery materials may develop slight surface moisture absorption when air humidity increases, causing rapid mesh blinding. Especially when moisture content approaches the critical point, material flowability decreases significantly.

Some high-temperature materials may also soften, agglomerate, or even develop thermal adhesion during screening. If equipment sealing is insufficient or screen surface heat dissipation is poor, mesh clogging will become increasingly severe.

Therefore, for conditions involving high moisture content or obvious temperature changes, priority should usually be given to screen self-cleaning capability, sealing structure, and continuous operational stability. Some lightweight powders may also use negative pressure airflow screens to reduce material accumulation through airflow conveying.

5.The final factor is environmental compatibility.

This point is often the most overlooked.

For example, some pharmaceutical, food, and new energy material workshops have extremely strict requirements regarding dust leakage, metal contamination, and cleaning dead corners. Meanwhile, some flammable and explosive powders also involve explosion-proof ratings and static electricity control.

If only screening efficiency is considered while ignoring the production environment, later problems such as difficult maintenance, complicated cleaning, or even production safety risks may arise.

Therefore, truly mature screening machine selection does not begin by asking “which machine should we buy,” but by first clarifying whether the material will agglomerate, absorb moisture, generate heat, or carry static electricity under real operating conditions, and whether the application requires “rapid screening” or “stable classification.” Only after these process conditions are fully understood can the appropriate equipment type become truly clear.

IV. Which Screening Machines Are More Suitable for Different Operating Conditions?

1.Ultrasonic vibrating screens are more suitable for ultrafine powder precision screening, especially for highly adhesive, high-static, and easily agglomerating materials. They are widely used in industries such as lithium battery materials, metal powders, silicon micropowder, graphite, and resin powders.

2.Tumbler screens are more oriented toward high-precision and high-capacity particle classification, especially for applications requiring high particle uniformity, such as food additives, chemical granules, and plastic pellets.

3.Ultrasonic tumbler screens combine both technologies, retaining the large-area, low-damage screening advantages of tumbler screens while adding ultrasonic mesh cleaning capability, making them more suitable for high-capacity fine powder screening.

4.Negative pressure airflow screens are more suitable for lightweight powders, ultrafine powders, and materials that are prone to floating. Some non-metallic powders, lightweight additives, and ultrafine chemical powders commonly use this solution.

5.Small particle screening machines specially designed for the lithium battery industry are more focused on continuous fine particle screening applications ranging from 20μm to 300μm, primarily solving mesh clogging and stability issues under high-precision screening conditions.

Many screening problems are not caused by “inability to screen,” but because the particles are not moving across the screen surface in the correct way. Only by understanding the relationship between material characteristics, movement trajectories, and mesh clogging mechanisms can screening machine selection move beyond the stage of simply “changing equipment to see if it works.”

<p>The post Screening Machine Selection Guide: Why Do Many Production Lines Encounter More Screening Problems After Replacing Equipment? first appeared on Navector-industrial screens, sifting equipment, ultrasonic vibrating screen, separation equipment, gyratory screen, self-cleaning filters,vibro sifter,Gyratory sifter,vibrotary screener,Tumberl Screener.</p>

Many workshops have experienced similar situations: the polymerization reaction stage goes smoothly, but once the process reaches downstream separation, the material starts “causing trouble” — today the mesh clogs, tomorrow the material agglomerates, and the next day the dried product shows poor flowability. Engineers spend hours troubleshooting the equipment, only to realize that the issue is often far more complicated than simply “low screening efficiency.”

I. Why Do Polymer Microspheres Always Encounter Problems During Separation?
In the production of medical aesthetic microspheres, drug delivery microspheres, and functional polymer beads, materials usually exist in the form of wet slurry. The slurry not only contains water or organic solvents, but may also carry fine particles, residual monomers, and polymer systems with a certain level of viscosity. Many production lines still rely on centrifugal separation, bag filtration, or step-by-step transfer drying processes, so most problems tend to concentrate during the solid-liquid separation stage.

First, microsphere particle sizes are becoming increasingly fine. Some medical aesthetic microspheres have already entered the range of several tens of microns or even smaller. Fine particles tend to form dense filter cakes on the filter surface. The equipment may operate smoothly at startup, but after running for some time, the liquid permeation rate begins to decrease significantly, and filtration resistance continuously increases.

Second, materials are more likely to agglomerate under high liquid-content conditions. Microsphere surfaces inherently possess certain adhesive properties. When slurry remains stationary or accumulates locally, liquid bridges easily form between particles, and after drying, these bridges further develop into hard agglomerates, affecting flowability and dispersion performance.

Another issue is contamination risk caused by intermediate transfer. Especially in medical aesthetics and bioprocessing workshops with high cleanliness requirements, workflows such as “transferring to barrels after filtration and transporting again after drying” usually mean longer exposure times and greater manual involvement.

Therefore, for many microsphere production lines, the real challenge is not simply “whether screening is fast enough,” but whether filtration, washing, dewatering, and drying can be completed continuously within a sealed environment.

II. Why Do Traditional Filtration Systems Become More Prone to Clogging Over Time?
Wet microsphere slurry differs from ordinary powder because it combines characteristics of both liquid filtration and fine particle separation, resulting in much higher requirements for equipment stability.

Traditional centrifugal equipment mainly relies on high-speed rotation for solid-liquid separation. However, when microsphere particle sizes are very fine, some particles can easily penetrate into the filter media. After long-term operation, gradual clogging occurs, resulting in increased filtration resistance and reduced throughput.

Under high liquid-content conditions, ordinary vibrating screens are more likely to experience mesh blinding. After wet microspheres enter the screen surface, liquid surface tension continuously causes fine particles to accumulate around the mesh openings. When particle size approaches mesh aperture size, “wedging” phenomena may also occur, leaving the mesh in a semi-blocked state.

At the same time, polymer microspheres themselves possess certain adhesive properties, causing fine particles to attach to the screen surface and further reduce the effective open area. This is why many medical aesthetic microsphere production sites often encounter situations where “the mesh clogs again shortly after cleaning.”

III. Why Is Transfer-Free Filtration Becoming Increasingly Important?
In recent years, many companies in the bioprocessing industry have started paying attention to “closed-loop microsphere separation.” The reasons are very practical. Once materials are repeatedly transferred between filtration, washing, and drying stages, production risks increase significantly, including:

Wet microspheres may absorb moisture or become contaminated after exposure to air;

Manual transfer can easily cause batch loss;

Agglomeration affects subsequent dispersion performance;

Microsphere particle size distribution may be damaged;

Sterile workshop management becomes more difficult.

Especially for medical aesthetic microsphere products, consistency in particle size distribution and flowability are critical. Many companies are ultimately concerned not with “whether filtration is possible,” but with “whether the microsphere condition can remain stable after filtration.” Some products may appear normal immediately after screening, but during downstream dispersion or filling processes, agglomeration, sedimentation, or poor flowability problems begin to appear.

IV. Sterile Integrated Microsphere Separation Is Replacing Traditional Processes
To address clogging and agglomeration issues during wet microsphere filtration, dewatering, and drying, some bioprocessing production lines have begun adopting sterile integrated separation solutions. The focus of this type of equipment is not simply increasing vibration intensity, but integrating filtration, washing, dewatering, and drying into a single sealed system to reduce intermediate transfer and manual intervention.

Taking the Navector microsphere screening solution as an example, the equipment combines centrifugal separation, negative-pressure fluid separation, and ultrasonic vibration to achieve continuous wet microsphere processing. Compared with traditional mechanical stirring methods, this type of system minimizes mechanical shear on microspheres as much as possible, avoiding particle damage or changes in particle size distribution.

Among these technologies, ultrasonic vibration mainly acts on the interface between the screen mesh and particles. It is not simply “shaking materials downward,” but rather using high-frequency micro-vibrations to reduce particle accumulation and mesh blockage while lowering the probability of liquid bridge formation, thereby mitigating agglomeration issues.

Many production sites discover that even after the same dewatering process, microspheres produced by different equipment systems can show significant differences in condition. Some easily form wet lumps or hard agglomerates, while others maintain relatively good flowability. The difference usually lies in the downstream separation and drying methods.

V. Which Industries Are Beginning to Use Integrated Microsphere Screening Equipment?
Currently, this type of microsphere screen and sterile medical aesthetic microsphere screening equipment is mainly used in the following process scenarios:

Bioprocessing microsphere carrier separation;

Medical aesthetic filler microsphere screening;

Drug sustained-release microsphere filtration;

Polymer resin bead dewatering;

Functional material microsphere washing and drying;

Laboratory-scale microsphere process scale-up.

These materials usually share several common characteristics: fine particles, high liquid content, easy agglomeration, sensitivity to contamination, and strict requirements for particle size integrity.

VI. Frequently Asked Questions About Microsphere Screening

Question 1: What is the difference between a microsphere screen and a conventional vibrating screen?
Microsphere screens place greater emphasis on wet slurry processing, sterile sealing, and integrated filtration, washing, and drying, while conventional vibrating screens are mainly used for standard powder classification.

Question 2: Why do polymer microspheres easily agglomerate?
This is mainly related to high moisture content, surface adhesion properties, and liquid bridge formation during drying, which makes fine particles prone to agglomeration.

Question 3: Are medical aesthetic microspheres suitable for high-temperature drying?
Some materials may deform, stick together, or undergo structural changes under high temperatures, so many processes adopt low-temperature negative-pressure dewatering methods.

Problems related to polymer microsphere screening often only become fully apparent under real slurry operating conditions. Material moisture content, particle size distribution, slurry viscosity, and agglomeration state changes can all directly affect filtration stability and downstream drying performance.

If you encounter problems during microsphere screening, washing, or dewatering processes, feel free to contact Navector for free material testing and process consultation to obtain customized solutions better suited to actual production conditions.

<p>The post Why Are Polymer Microspheres Becoming Increasingly Difficult to Screen? Analysis of Sterile Integrated Separation Solutions for Microsphere Screening first appeared on Navector-industrial screens, sifting equipment, ultrasonic vibrating screen, separation equipment, gyratory screen, self-cleaning filters,vibro sifter,Gyratory sifter,vibrotary screener,Tumberl Screener.</p>

The Navector lithium battery industry dedicated small particle screening machine is specifically designed for these working conditions. The equipment adopts ultrasonic screening technology combined with both 3D vibration and gyratory vibration modes, allowing materials to move across the screen surface not just in a simple “up-and-down” motion, but in a more uniform three-dimensional movement trajectory. As a result, fine powders remain continuously dispersed on the screen surface, reducing localized accumulation and minimizing particles becoming trapped in the mesh openings.

During actual operation, the ultrasonic system continuously transmits high-frequency micro-vibrations to the screen mesh, helping fine powders attached to the mesh surface loosen in time. For lithium battery materials with strong adsorption tendencies and high static generation, this method can effectively reduce screen blockage and mesh blinding. Many on-site operators notice the difference quite directly: in the past, after running for a period of time, the screen surface would gradually become “sluggish,” whereas now material passing becomes more uniform, and the frequency of shutdowns for screen cleaning is reduced.

Compared with traditional vibrating screens, this compound motion mode is more suitable for long-term continuous processing of fine powders, especially under 50–635 mesh fine screening conditions, where both screening efficiency and operational stability can be maintained.

II. Why Can It Solve Agglomeration Problems?
In many lithium battery material production workshops, the biggest concern for operators is often not that the equipment “cannot screen,” but that the screening condition becomes unstable. Fine powders such as lithium iron phosphate and lithium cobalt oxide can gradually begin to agglomerate after several hours of continuous production due to static electricity, slight moisture absorption, or increased powder adhesion. Initially, only localized slowing of material discharge may occur, but eventually powder accumulation, mesh blockage, and even shutdowns for cleaning can become necessary. This issue becomes even more obvious when processing 20–300μm small particle powders.

When designing the Navector lithium battery industry dedicated small particle screening machine, special attention was paid to this “long-term operational stability” problem. The equipment adopts ultrasonic screening technology combined with 3D vibration and gyratory vibration modes. As materials pass across the screen surface, mildly agglomerated particles can be continuously dispersed, reducing powder buildup and mesh plugging.

Many customers have reported after practical use that, in the past, the phrase they feared hearing most during production was “the screen is clogged again.” Now, the screening rhythm has become much more stable, and screen service life has also been extended. For continuous production lines, reducing downtime is often more important than simply increasing instantaneous output.

III. Who Needs This Equipment Most?
Currently, this equipment mainly serves three core groups:
① Cathode material manufacturers, for classification after precursor drying to ensure a more uniform powder particle size distribution;
② Electrode slurry manufacturers, using stable screening to reduce coarse particles and oversized particles entering the slurry system, thereby improving the stability of subsequent coating processes;
③ Lithium battery recycling companies, for processing mixed materials after electrode sheet crushing, improving powder recovery efficiency and purity.

Trial production data from a leading power battery manufacturer showed that after introducing this equipment, the sedimentation rate of cathode material slurry decreased by 42%, while electrolyte consumption during the liquid injection process was reduced by 18%. In many cases, screening may appear to be just a “small step” on the production line, but its influence on downstream process stability is often much greater than expected.

IV. Which Production Stages Can Use This Equipment?
In cathode material production processes, this equipment can be applied at three key stages:
① Primary screening after precursor calcination, where particle size spans are relatively large and preliminary classification of mixed materials within the 5–200μm range is required;
② Fine classification after coating modification, ensuring coating layer thickness uniformity;
③ Quality inspection before finished product packaging, where many manufacturers use different mesh sizes to reclassify fine powders and abnormal particles, maximizing final product consistency.

Beyond the lithium battery industry, this type of equipment also performs well in lightweight powder applications. A photovoltaic silicon powder manufacturer reported that when processing lightweight silicon powder, adjusting the vibration amplitude parameter (0.5–2 mm) increased screening efficiency to 2.8 times that of traditional screening machines.

V. Under What Conditions Does It Perform Better Than Traditional Screens?
This type of equipment is more suitable for processing fine powders with strong adsorption, high static electricity, and easy agglomeration tendencies, especially during the screening of 20–300μm lithium battery materials.

For example, in many lithium battery material workshops, screening is usually normal when the machine first starts operating. However, after several hours of continuous operation, fine powders such as lithium carbonate and high-nickel materials may gradually become sticky and accumulate on the screen mesh due to moisture absorption, static electricity, or mild agglomeration. Eventually, not only does material discharge slow down, but mesh blockage and particle plugging are also likely to occur. These issues become even more obvious in high-temperature and high-humidity summer environments.

The Navector lithium battery industry dedicated small particle screening machine adopts ultrasonic screening technology combined with 3D vibration and gyratory vibration modes, allowing materials to maintain a more uniform movement state on the screen surface and effectively reducing fine powder accumulation and mesh blockage.

For working conditions requiring long-term continuous production, the overall operating temperature rise of the equipment remains relatively low, and the screening condition becomes more stable. Many on-site operators clearly feel that, in the past, they constantly had to keep an eye on the screen mesh, whereas now they no longer need to repeatedly run over and knock the screen every few hours.

VI. How Do You Choose the Right Model for Your Material?
Lithium battery material screening model selection usually requires comprehensive evaluation based on material characteristics, processing capacity, and on-site production processes.

First are the material characteristics. Fine powders such as lithium carbonate and high-nickel materials, which easily absorb moisture and agglomerate, are more suitable for models equipped with ultrasonic screening systems to reduce mesh blockage and powder accumulation problems;

Second is processing capacity. Different screen surface sizes and single-layer or multi-layer screen configurations directly affect screening capacity and accuracy. For working conditions requiring simultaneous control of coarse particle and fine powder proportions, multi-layer screen solutions are usually adopted to improve particle size classification consistency;

Finally, on-site production processes must also be considered comprehensively. During actual model selection, many companies focus more on whether the equipment can maintain long-term stable operation rather than only short-term output. Especially in 20–300μm fine powder screening scenarios, whether the equipment is prone to mesh blockage and whether screen service life remains stable are often more important than parameters alone.

If you are currently experiencing issues such as fine powder mesh blockage, agglomeration, or unstable screening efficiency, you can also contact us at 15601937055 to schedule a free material testing appointment. In many cases, running an on-site material test is far more intuitive than simply reviewing technical parameters.

<p>The post Lithium Battery Industry Dedicated Small Particle Screening Machine: A Refined Solution for Cathode Material Screening first appeared on Navector-industrial screens, sifting equipment, ultrasonic vibrating screen, separation equipment, gyratory screen, self-cleaning filters,vibro sifter,Gyratory sifter,vibrotary screener,Tumberl Screener.</p>

Navector Group made a remarkable appearance with multiple screening equipment and solutions, highlighting core products including the Small Particle Screening Machine, Plastic Sifter, Wet Filtration Screen, Intelligent Sifter, and Magnette Screen Mesh. During the exhibition, the Navector booth attracted a large number of visitors for discussions and exchanges, maintaining strong popularity throughout the event.

I. Multiple Core Equipment Showcased at CIBF2026

Focusing on the lithium battery industry’s demand for high-precision, high-efficiency, and intelligent screening solutions, Navector showcased multiple core products including the Small Particle Screening Machine, Plastic Sifter, Wet Filtration Screen, Intelligent Sifter, and Magnette Screen Mesh.

1.The Small Particle Screening Machine adopts advanced ultrasonic screening technology combined with 3D vibration and gyratory vibration modes, effectively preventing fine mesh blockage and particle clogging, making it an important solution for achieving high-precision and high-efficiency screening.

2.The Plastic Sifter was specially designed for powder materials requiring “zero” metal contamination and prohibition of contact with metal materials. It is widely used in the screening and filtration of lithium battery materials, chemical powders, pharmaceuticals, powder metallurgy, strong acids, and strong alkali materials.

3.Magnette Screen Mesh, featuring high wear resistance, high strength, and high screening efficiency, also became one of the most attention-grabbing core component products at the exhibition.

II. Magnette Screen Mesh Draws Industry Attention at CIBF2026

During the exhibition, Mr. Huang, General Manager of Jingwei Youpin, a subsidiary of Navector Group, was invited to participate in the on-site new product launch event and delivered a special presentation on Magnette Screen Mesh.

As one of Navector Group’s core technological components, Magnette Screen Mesh features optimized structural design and upgraded manufacturing processes, providing higher structural strength, better screening efficiency, and longer service life, delivering more stable and reliable foundational performance for complete screening systems.

With the continuous development of the new energy industry, lithium battery materials are placing increasingly higher demands on particle size control, production efficiency, and quality stability.

In response to industry trends, Navector systematically demonstrated integrated screening solutions covering multiple stages including powder screening, slurry filtration, ultrafine powder classification, and automated conveying, fully showcasing the company’s technical expertise and industry application experience in the field of new energy material screening.

In the future, Navector Group will continue to focus on new energy screening technology, continuously promoting upgrades in equipment, processes, and intelligent technologies, while providing more efficient and stable screening solutions for global new energy industry customers.

CIBF2026 has successfully concluded. Thank you to every customer and partner for your attention and support. Navector Group looks forward to working together with industry partners to promote the high-quality development of the new energy industry.

<p>The post Navector Group Successfully Concludes CIBF2026 Shenzhen International Battery Technology Exchange Conference! first appeared on Navector-industrial screens, sifting equipment, ultrasonic vibrating screen, separation equipment, gyratory screen, self-cleaning filters,vibro sifter,Gyratory sifter,vibrotary screener,Tumberl Screener.</p>

This situation is not uncommon in the food industry. Due to the hygroscopic and adhesive properties of starch materials, flocculent agglomeration easily forms under high-temperature and high-humidity conditions. Traditional screening equipment often falls into a dilemma: increasing vibration amplitude can break up clumps, but it also causes severe dust dispersion; reducing amplitude worsens mesh blockage. Data shows that during summer production, the failure rate of the screening section at one starch factory increased by 40% compared to normal seasons, while screen mesh consumption costs tripled.

I. Starch Screening Always Suffers from Mesh Blocking? How Tumbler Screens + Ultrasonic Screening Technology Solve the Agglomeration Problem

Facing these challenges, we attempted to precisely match the characteristics of tumbler screens with the properties of starch materials. The equipment adopts a three-dimensional composite motion trajectory — combining horizontal circular movement of 60-80mm with vertical throwing motion of 5-40mm to form a three-dimensional spiral conveying path. This design cleverly avoids two key contradictions:

Dust control: Traditional vibrating screens operate with an acceleration of 5-7g, causing lightweight starch powder to disperse heavily, while tumbler screens suppress acceleration within the range of 1.3-1.8g. This is equivalent to conveying materials in slow motion, reducing dust emissions by more than 90%;

Anti-clogging capability: By adjusting eccentricity parameters, the equipment can generate a “kneading” effect similar to manual flour sifting. Actual testing shows that when corn starch moisture content rises to 18%, the tumbler screen can still maintain an effective screening rate above 85%, while ordinary screening equipment drops below 50%.

In a renovation project at a potato starch processing plant in Northeast China, the installation of an ultrasonic auxiliary system became the turning point. When a 1200-mesh screen encountered starch gel, the 18kHz high-frequency vibration waves instantly shattered micron-level sticky particles, while the pneumatic lifting device enabled rapid screen replacement. After the upgrade, the production line’s daily capacity increased significantly, screen mesh lifespan was greatly extended, and impurity removal efficiency improved substantially.

II. How to Choose Starch Screening Equipment? Hygienic Design Is the Real Core

“Hygiene is not something that can be solved simply by putting an SS304 label on the equipment.” A quality inspector pointed to a cross-sectional view of the machine and explained: “Look here — the inner wall has a mirror-polished finish of 0.8μm, all corners feature R5 or larger arc transitions, and even the bottom of the screen box is designed with self-cleaning grooves.” These details form the defense system of a food-grade tumbler screen:

Pneumatic quick-change system: Complete disassembly of the entire screen mesh assembly within 10 seconds, preventing cross-contamination;

CIP cleaning compatibility: The equipment reserves high-pressure spray interfaces to enable online cleaning;

Sealed isolation: FDA-certified silicone sealing strips are used to prevent dust leakage while also making daily wiping and disinfection more convenient.

At a baby food manufacturer in East China, these designs enabled the equipment to pass BRCGS AA-level certification. “In the past, changing production batches required a 2-hour shutdown for disinfection. Now it can be completed in just 30 minutes,” the production supervisor said while showing validation records under the HACCP system.

III. High-Precision Starch Screening Solutions: How Tumbler Screens Balance Capacity, Screening Accuracy, and Low Dust

A food additive company once conducted a comparative test: the same batch of wheat starch was processed separately by a traditional rotary vibrating screen and a tumbler screen, producing significantly different results:

Index Traditional Rotary Vibrating Screen Tumbler Screen (with Ultrasonic System)
Processing Capacity 450kg/h 1120kg/h
300-Mesh Screening Rate 82% 97.5%
Daily Screen Consumption 4 pieces 0.8 pieces
Workshop Dust Concentration 1.2mg/m³ 0.08mg/m³

“The key point is that we can simultaneously complete three-stage separation of coarse powder, fine powder, and ultra-fine powder.” The engineer opened the operation interface, showing that the equipment was synchronously performing multi-stage screening tasks ranging from 20 mesh to 800 mesh. This capability comes from the equipment’s unique dynamic load distribution system — by adjusting the excitation angle, materials of different particle sizes can follow predetermined trajectories, avoiding the “short-circuit phenomenon” commonly seen in traditional multi-layer screening.

IV. Tumbler Screen Usage Tips: Three Key Details Food Factories Must Pay Attention To

Preheating and commissioning period: During the first operation, it is recommended to start with one-third load and gradually increase to full load, allowing the equipment to adapt to material characteristics;

Humidity monitoring: Install an online moisture meter at the screening inlet. When moisture content exceeds 15%, the ultrasonic system is automatically activated;

Screen mesh material upgrade: Optional Navector diamond screen mesh can be equipped. By adding a special coating to the mesh surface, it can effectively improve material passing rates and reduce fine powder mesh blockage problems.

As one process engineer with over twenty years of experience said: “Screening equipment is not purchased just for display. You must deeply understand the material — understand its characteristics and master its behavior — only then can you achieve twice the result with half the effort.”

If your company is also struggling with efficiency and hygiene challenges in starch screening, you may start with small-scale laboratory testing. By simulating real production line conditions, we can help you find the most economical and effective solution. After all, in the food industry, safety and efficiency have never been an either-or choice.

<p>The post Starch Screening Solutions in High-Humidity Environments: Why Tumbler Screens Are Becoming Increasingly Popular in Food Factories first appeared on Navector-industrial screens, sifting equipment, ultrasonic vibrating screen, separation equipment, gyratory screen, self-cleaning filters,vibro sifter,Gyratory sifter,vibrotary screener,Tumberl Screener.</p>