Horizontal Air Classifier

for Silica Powder (Ultrafine Quartz Powder)

Single / Multiple Classifying Wheel

With horizontal staged turbine, the rotor speed can be adjusted by frequency conversion, and the particle size distribution can be adjusted flexibly, classifying efficiency (extraction ratio) can be 60%~90%, available D50:1.5-25μm.

Features:  High speed, accurate vertex cutting; clean production process; program control system, easy to adjust and operate.


Application: Widely used in chemical industry, mineral industry (especially suitable for classification of non mineral products such as calcium carbonate, kaolin, quartz, talc, mica), metallurgy, abrasives, ceramics, refractory, medicine, pesticide, food, health care products, new materials, etc..

Unique Advantages

Belt transmission, stable and reliable

The motor can be connected by belt, which is stable and reliable. It can achieve high speed and improve speed, breaking through the problem of no high-speed motor for well-known motor brands.

High precision grading rotor

It adopts horizontal grading turbine device, with high speed and accurate vertex cutting, which can meet the demanding product requirements. The highest speed can reach 80m/s, and the rotor speed can be adjusted by frequency conversion to flexibly adjust the particle size distribution.

Automation technology, stable as one

The control system adopts program control, easy to operate; the grading rotor can be made of ceramic materials, no metal pollution, meeting the requirements of high purity materials; the whole system is closed crushing, less dust, low noise, clean and environment-friendly production process.

Large scale and large capacity

The use of multiple horizontal installation of the rotor can achieve higher output than a single rotor;
The classification efficiency (extraction rate) can reach 60% - 90%.

Working Principle & Equipment Characteristics

Jet Mill, cyclone, bag filter and fan constitute a complete milling system. After the compressed air is filtered and dried, it is sprayed into the milling cavity at high speed through Laval nozzles. At the intersection of multiple high-pressure airflows, the materials are repeatedly collided, rubbed, and sheared to be milled. The milled materials rise with the suction of the fan. The air flow moves to the classification area, the coarse and fine powder are separated under strong centrifugal force generated by the high-speed rotating classification turbine. The fine particles that meet the particle size requirements are through classifier wheel and collected by cyclone and bag filter; the coarse powder drop to the milling area and continue to be milled.

Working principle of Horizontal Air Classifier ( Single Wheel )

Working principle of Horizontal Air Classifier ( Multiple Wheel )


Horizontal & Single Classifying Wheel

Air Classifier

  • A horizontal mounted staged rotor, linear speed can reach 100m/s;
  • The rotor speed can be adjusted by frequency conversion, and the force distribution can be adjusted flexibly;
  • Suitable for precise classifying of dry micron material;
  • Available D50:1.5-25μm.

Multiple Classifying Wheel

Horizontal Air Classifier

  • The rotor diameter is 315mm-630mm, and 2-6 rotors, which is used for ultra-fine powder classification;
  • The classifying wheel increases the classifying space on the top of silo;
  • Inverter control, adjustable speed;
  • Higher output than single rotor.

Technical Parameters

Horizontal Air Classifier(Single Classifying Wheel) Technical Parameters

Parameters/specifications

FW200

FW280

FW400

FW520

FW630

FW800

Production Capacity(kg/h)

10~100

20~200

50~500

100~1500

200~2500

400~4000

Production Particle size (D97:μm)

3~45

3~45

3~45

3~45

3~45

5~45

Classifying efficiency(%)

60~80

60~80

60~80

60~80

60~80

60~80

Installed Power(kW)

7~11

15~19

21~28

23~30

52~60

67~77

Horizontal Air Classifier(Multiple Classifying Wheel) Technical Parameters

Parameters/specifications

FW400/3

FW400/4

FW630/3

FW630/4

FW630/6

FW800/4

FW800/6

FW1000/4

FW1000/6

Production Capacity(t/h)

0.2~1.5

0.3~2

1~5

2~8

3~10

3~10

5~15

5~20

8~30

Production Particle size   (D97:μm)

3~45

3~45

3~45

3~45

3~45

5~45

5~45

5~45

5~45

Classifying efficiency(%)

60~80

60~80

60~80

60~80

60~80

60~80

60~80

60~80

60~80

Installed Power(kW)

60~90

175~100

135~155

170~190

250~290

220~290

290~390

340~440

500~580

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