Centrifugal Sifter
Centrifugal Sifter is a high-efficiency airflow screening system designed for ultrafine powder classification. Using high-speed airflow and centrifugal force, it enables precise separation of 50–500 mesh materials such as chemical powders, minerals, and food additives. With anti-clogging, dust-free operation, pneumatic conveying compatibility, and continuous 24-hour running, it delivers higher throughput, stable performance, and energy-efficient non-blinding screening for industrial applications.
Introduction
The Centrifugal Sifter is a high-efficiency air-flow screening system designed for 200–500 mesh ultrafine powders. It delivers 8–10× higher capacity than traditional screening equipment while ensuring higher precision, lower energy consumption, and stable continuous operation.
Using centrifugal force and airflow technology, materials are fully dispersed, preventing agglomeration and improving screening efficiency. The cylindrical screen works with a spiral feeding system to achieve continuous separation of fine and coarse particles.
Fine powder passes through the mesh as finished product, while oversized particles are discharged separately. With anti-clogging performance, long screen life, and integrated feeding and breaking functions, the Centrifugal Sifter provides a compact, efficient, and cost-saving solution for modern powder processing.
Working Principle of Centrifugal Sifter
The Centrifugal Sifter operates by combining high-speed airflow with centrifugal force to achieve efficient ultrafine powder separation. Materials are first fed into the system through a spiral conveying unit, where they are fully dispersed and de-agglomerated in a controlled airflow environment.
Once inside the cylindrical screen chamber, the material is subjected to strong centrifugal force generated by the rotor and airflow vortex. This dual force drives fine particles through the mesh screen, while oversized particles are pushed along the inner wall of the drum.
Fine powders pass through the screen and are discharged as finished product through the fine outlet, while coarse particles are continuously conveyed to the coarse discharge outlet for reprocessing or removal.
This continuous dynamic separation process ensures stable performance, anti-clogging operation, high precision screening, and efficient processing of 200–500 mesh ultrafine materials.
Features
- A single unit or multiple units can be combined to form a complete, fully operational system capable of long-term continuous operation, ensuring safety and reliability.
- New-generation roller bearings extend service life.
- The machine is compact and lightweight, operating stably with no vibration or noise, featuring excellent sealing performance, dust-free operation, and high efficiency.
- Agglomerated materials can be further crushed.
- The screen mesh can be cleaned via a cyclone system, automatically clearing the mesh openings.
- The housing features an innovative design, is simple to install, and easy to control.
- The machine can be integrated with a pneumatic conveying system and directly connected to ventilation ducts, conserving resources.
- New design: The gas protection system purifies the air entering both ends of the machine, effectively reducing operating temperatures.
- It forms a gas insulation layer on the bearings, thereby preventing dust ingress, effectively extending bearing service life, reducing maintenance frequency, and improving operational efficiency.
- Custom-designed to meet specific customer requirements.
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Application
Centrifugal sifters are used in metallurgy, mining, pharmaceuticals, food processing, chemical engineering, metal powders, and non-metallic materials.
Air-jet screens are widely used for various fine powders that are difficult to screen; they can effectively screen fine powders in the 50–500 mesh range. Examples include lightweight calcium powder, active calcium powder, activated carbon powder, starch, pharmaceutical powders, fly ash, zinc powder, graphite powder, quartz sand powder, gold powder, ceramic clay powder, hawthorn powder, fruit thinning powder, calcium hydroxide powder, pesticide powder, konjac powder, phosphors, wood flour, wheat flour, epoxy resin powder, manganese dioxide, sulfur powder, aluminum oxide powder, bakelite powder, magnesium oxide, perlite powder, iron powder, and cotton linters, among others.
Metal Powder
Paint Coating
chemical powder
Tapioca Flour
Milk Powder
Medicine Powder
Sugar Powder
Light calcium powder
Jiarui Centrifugal Sifter
Centrifugal Sifter – High-Efficiency Airflow Screening Solution
The Centrifugal Sifter is designed for continuous fine powder separation, especially for 200–500 mesh materials. It is widely used in chemical, food, and mineral industries for precise classification and impurity removal.
High Efficiency & Continuous Operation
High-speed airflow combined with centrifugal force ensures stable screening, high throughput, and 24-hour continuous running with low energy consumption.
Stable Performance & High Capacity
The cylindrical chamber and spiral feeding system ensure uniform material dispersion, prevent agglomeration, and maintain consistent output for large-scale production.
Precise Screening & Separation
It enables efficient separation of fine and coarse particles in one process, delivering stable and accurate grading performance.
Anti-Clogging & Low Maintenance
Airflow dispersion prevents mesh blockage, while optional ultrasonic systems improve efficiency and extend screen life.
Model Specifications
| Model | A (mm) | B (mm) | C (mm) | D (mm) | E (mm) | F (mm) | H (mm) | I (mm) | J (mm) | Material | Mesh Application |
|---|---|---|---|---|---|---|---|---|---|---|---|
| WSA18-65 | 1430 | 460 | 420 | 1005 | 135 | 230 | 330 | 340 | 210 | Q235A / SUS304 | 500 mesh |
| WSA30-100 | 1845 | 655 | 766 | 1240 | 320 | 285 | 350 | 380 | 290 | Q235A / SUS304 | 500 mesh |
| WSA50-130 | 2230 | 870 | 790 | 1775 | 280 | 515 | 660 | 400 | 485 | Q235A / SUS304 | 500 mesh |
Customization Available
We provide full customization solutions to meet different industrial screening needs. From capacity requirements to material characteristics, each Centrifugal Sifter can be tailored for your production line.
You can customize machine size, material (carbon steel or SUS304), mesh range, airflow system, voltage, and discharge design. Optional upgrades such as ultrasonic anti-clogging systems and enhanced feeding structures are also available.
Contact us with your application details, and our engineering team will design the most efficient screening solution for your process.
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