• Air Classifier HTS
  • Air Classifier HTS
  • Air Classifier ITC
  • Air classification CTC

Air Classifier

Realize the separation of particles of different sizes

Air Classifier is the process in which fine particles are separated by utilizing the opposing forces of centrifugal force and aerodynamic drag. An air classifier can precisely, predictably, and efficiently sort particles by mass, resulting in a coarse particle fraction and a fine particle fraction.

  • A variety of classification rotor are available, and the output can be adjusted; speed of wheel is controlled by inverter, particle size can be adjusted freely. The classifying wheel can be made of ceramic materials, without metal pollution, meeting the requirements of high-purity materials.
  • Grinding is in closed system, little dust, low noise in a clean and environmentally friendly process.
  • In conjunction with ball mill, table roller mill and Raymond mill to form closed circulation.
  • Optional explosion-proof design, can also be upgraded to a nitrogen circulation system to meet the processing needs of flammable and explosive oxide materials.

According to different materials and application industries, the production capacity and particle size range will be different.

Please contact our engineers to customize the equipment for you. Our experts will contact you within 6 hours to discuss your needs for machine and processes.

info@epic-powder.com I want solutions

What is the working principle of air classifier?

Under the action of the fan, the material moves to the classification area at a high speed from the lower inlet of the classifier with the updraft. Under the action of the strong centrifugal force generated by the high-speed rotating classification turbine, the material is separated, and the fine particles meeting the particle size requirements enter the cyclone separator or dust collector through the blade gap of the classification wheel for collection. The velocity of some fine particles entrained by coarse particles disappears after hitting the wall, and then decreases to the secondary air outlet along the wall of the cylinder. Through the strong washing effect of the secondary air, the coarse and fine particles are separated, the fine particles rise to the secondary classification in the classification area, and the coarse particles drop to the discharge port for discharge.

What materials work best for air classifier?

Air classifier is ideal for fine powders of ceramics, abrasives, glass, minerals, and polymers. If you’re unsure whether or not your particular feed will be a good fit, here are some material properties to consider.

Good candidates:

Dense materials
Hard materials
Round/spherical materials
Free-flowing materials
Materials that disperse well in air

Poor candidates:

Wet materials
Sticky materials
Entangled materials
Light/fluffy materials
Materials that do not disperse well in air

Predicting whether a material will respond to air classification successfully can be difficult and often surprising, so it is always worth a feasibility trial to find out. Contact EPIC Powder Machinery today to schedule your material test batch.

How do I choose the right model for my needs?

EPIC Powder Machinery offers three different types of air classifiers to choose from. See the table below to compare their basic specifications and system requirements.

Technical parameters of horizontal single rotor Air Classifier HTS

Parameter / Model HTS70 HTS100 HTS140 HTS200 HTS260 HTS315 HTS400 HTS500 HTS630 HTS750 HTS1000
Diameter of grinding disc (mm) 70 100 140 200 260 315 400 500 630 750 1000
Classification motor power (kW) 2.2 3 4 7.5 11 15~18.5 18.5~22 22~30 30~45 37~55 45~75
Rotation speed of classifying wheel (rpm）(max) 4500 3250 3000 2920 2500 2200 2000 1800 1800 1500 1150
Air volume (m³/h)(max) 150 300 600 1200 2000 3500 5600 8800 14000 20000 35000
Product fineness (μm/D97） 5~100 3~100 3~120 3~150 3~150 4~150 5~150 6~150 6~150 7~150 15~150
Classification efficiency (η%) 60~80 60~80 60~80 60~80 60~80 60~80 60~80 60~80 60~80 60~80 60~80

Technical parameters of vertical single-rotor Air Classifier ITC

Parameter / Model ITC-S2 ITC-S1 ITC-1 ITC-2 ITC-3 ITC-4 ITC-5 ITC-6 ITC-7 ITC-8 ITC-9
Classification motor power (kW) 4 7.5 11 15 22 37 37~45 45 55 75 110
Air volume (m³/h)(max) 1200 2700 3900 6000 11000 17000 30000 43000 77000 120000 150000
Product fineness (μm/D97） 5~150 5~150 5~150 5~150 5~150 5~150 5~150 5~150 5~150 5~150 5~150

Technical parameters of MBS series Air Classifier

Parameter / Model 1 2 3 4 5 6 7 8 9
Drive power (kW) 5.5 11 15 22 37 45 75 110 132
Speed/coarse (rpm) 2120 1540 1150 800 670 520 420 350 280
Speed/fine (rpm) 4240 3080 2300 1450 1210 930 760 630 440
Air volume (m³/h)(max) 2800 4700 8600 15200 23400 31000 49000 74000 107000
Product fineness (μm/D97） 8 9 10 13 14 16 18 20 25
output (t/h） 4 6.6 12.1 21.3 32.8 43 68 100 140

Technical parameters of MBS series Air Classifier

Parameter / Model 10 11 12 13 14 15 16 17 18
Drive power (kW) 160 185 220 280 320 380 475 540 630
Speed/coarse (rpm) 240 230 230 210 210 200 200 190 180
Speed/fine (rpm) 380 350 310 280 260 240 230 210 200
Air volume (m³/h)(max) 150000 190000 237000 288000 344000 402000 469000 536000 606000
Product fineness (μm/D97） 27 28 29 31 33 34 35 37 38
output (t/h） 210 260 330 400 480 560 650 750 840

Other Important Factors to Consider When Buying an Air Classifier

What is the particle size of your feed material?

Feed material greater than 500 microns cannot be directly handled by our air classification equipment and will need to be further reduced in size before use. In addition, incoming feed material with a wide size distribution will result in a lower yield than that of a batch with a narrower size distribution.

What is your target particle size?

Air Classifiers can separate fine particles that are in the range of 175 microns. However, size distributions typically fall somewhere in the 5–70-micron range.

Is your material combustible?

If you plan to work with a combustible powder, you need to ensure that your air classifier has the necessary suppression systems in place. EPIC can customize any of our models to include explosion suppression systems.

Is your material abrasive?

Air classifiers are very effective at separating abrasive materials with minimal wear. This is because the system is built with wear-resistant coatings and tungsten carbide-coated components.

If you have more questions.Contact EPIC Powder Machinery today to arrange an engineer to answer your questions.

Show details of our air classifiers

Show the machine details related to the Air Classifier, the details determine the quality.

Air Classifier
Air Classifier
Air Classifier
Air Classifier

More cutting edge information on air classifiers.

We will present the experimental reports regularly output by EPIC Powder Machinery to you in a timely manner, share cutting-edge trends with you, and keep development trends in your hands.

10 May, 2022

The composition & function of the air classifier system

The Air Classifier is mainly composed of a feeding control system, a classifier host (1-4 units), a high-efficiency cyclone collector, a pulse bag filter, a high-pressure induced draft fan and an electrical control system.

Read More

10 May, 2022

Installation precautions of air classifier

What precautions should be taken when installing an air classifier? Let the engineers at EPIC Powder Machinery tell you.

Read More

Get in Touch

our experts will contact you within 6 hours to discuss your needs for machine and processes.

logo-2.