Quote
Quote Cart
clear all items
All Equipment Classifiers

Classifiers - Used and Surplus Inventory | IPP

Used classifiers for sale: precision particle separation for bulk material processing

Searching equipment…
Active Filters
Equipment
Classifier
Clear all filters

Top Classifiers in stock

Highest-ranked available inventory for this selection.

Viewing Classifier

No subtypes are available.

Narrow these listings

Specifications

Available Classifiers

Showing 11 of 11 matching Classifiers.

Stock Number: #210185
Air Flow Rate: 2,600 m3/h
Diameter: 12 in
Particle Size (microns): 37
Additional Information: inlet Carbon Steel skid mounted High Efficiency Fine classifier 3600 RPM rotor max speed.15kW. 460 vac 35 amps Inlet size is 9", outlet is 21" x 19 " square flange. Rejects line is 5" Particle wheel has hinged door for clean out and wheel access This classifier is rated for 2000-2600 m3h, and 200/2400 kG/h Finess is rated for 3.0-4.0 (c/37um).
More Details ⟶
Stock Number: #229385
Air Flow Rate: 2 m3/h
Additional Information: spiral air classifier coarse material removal driven by 2 kw, 3/50/660/1450 rpm EX motor mounted on a baseplate
More Details ⟶
Stock Number: #229393
Air Flow Rate: 2 m3/h
Additional Information: spiral air classifier coarse material removal driven by 2 kw, 3/50/660/1450 rpm EX motor mounted on a baseplate
More Details ⟶
Stock Number: #706699
Cyclone: Yes
Additional Information: minisplit lab jet mill/ air classifier cyclone
More Details ⟶
Stock Number: #225234
Air Flow Rate: 750 CFM
Screen: Yes
Temperature: 150 °F
Additional Information: certified by Lowe-Mar manufacturing Co, serial #93039-1, hinged front door
More Details ⟶
Stock Number: #225388
Air Flow Rate: 750 CFM
Diameter: 24 in
Screen: Yes
Temperature: 150 °F
Additional Information: turbo screen classifier certified by Lowe-Mar manufacturing Co, hinged front door, built on panel
More Details ⟶
Stock Number: #211991
Air Flow Rate: 750 CFM
Diameter: 24 in
Screen: Yes
Temperature: 150 °F
Additional Information: 304 stainless steel turbo screen classifier certified by Lowe-Mar manufacturing Co hinged front door built on panel
More Details ⟶
Stock Number: #210334
Air Flow Rate: 2,500 CFM
Cone Length: 72 in
Cyclone: Yes
Diameter: 18 in
Length: 15 in
Additional Information: Seperator with 6' cone bottom 8" top tangential opening, 8" side tangential opening, 6" bottom opening with valve Mounted in CS stand Unit housing clamps together for cleaning
More Details ⟶
Stock Number: #207942
Air Flow Rate: 1,000 CFM
Cyclone: Yes
Diameter: 30 in
Particle Size (microns): 20
Screen: Yes
Temperature: 100 °F
Additional Information: lined Turbo-Screen Classifier For scalping or dedusting on screens as fine as 20 microns Suction feed through 6" inlet Undersize particles are passed through the screen then are precipitated from the conveying air in a cyclone or a bag house Oversize particles retained on the screen are removed by a rotating air knife where they drop out through the oversize chute for re-processing Mounted on stand
More Details ⟶
Stock Number: #210333
Cone Length: 120 in
Cyclone: Yes
Diameter: 24 in
Length: 20 in
Additional Information: Seperator 10' cone bottom 10" top tankgential opening, 10" side tangential opening, 6" bottom opening with valve Mounted in CS stand. Unit housing clamps together for cleaning
More Details ⟶
Stock Number: #706700

Shop secondhand and surplus classifiers from IPP – available for immediate shipment

IPP’s in-stock classifiers streamline production and help you save time and money on sizing and sorting

When your operation requires precise separation of solids based on size, density, or shape, classifiers offer critical solutions for a variety of industrial processes. With over 47 years of process equipment expertise, IPP provides immediate access to high-quality used classifiers sourced from 20 complete plant sites and included in our inventory of over 15,000 ready-to-ship pieces of equipment. Choosing used classifiers from IPP enables companies to save on capital costs, accelerate installations, and achieve consistent material quality.

Classifiers separate solid particles in a liquid or gas medium based on size, density, or settling velocity. They are essential for refining products, recovering valuable materials, or preparing feedstock for downstream processing across multiple industries.

Primary uses across industries

  • In mining and mineral processing, classifiers separate ores, sands, and fine particles to improve downstream recovery rates.
  • In chemical manufacturing, they control particle size distribution for specialty powders and catalysts.
  • In food and beverage production, classifiers sort grain, sugar, or starch particles for consistent quality.
  • In pharmaceutical production, they separate and size powders for uniformity in drug formulations.
  • In environmental and recycling operations, classifiers clean and segregate fine waste materials.

Types of materials processed

  • Mineral ores, sands, and gravel
  • Fine chemical powders and specialty materials
  • Agricultural products like grains, seeds, and starches
  • Wastewater or recycling fines requiring separation by size or weight

Common materials of construction

Industrial classifiers are built for abrasion resistance, chemical compatibility, and sanitary operation:

  • Stainless steel for food-grade, pharmaceutical, and chemical uses
  • Carbon steel for general mineral and industrial processing
  • Specialty linings or coatings for highly abrasive materials like ores and sand

Key features of industrial classifiers

  • Spiral, rake, hydraulic, and air classifier designs for different applications
  • Precise particle separation for improved product consistency
  • Energy-efficient designs for continuous operation
  • Adaptability for wet or dry classification systems
  • Easy integration with upstream grinding or downstream processing equipment

Learn more about solid particle classification technologies from Chemical Processing.

Find your classifier at IPP

Search the IPP inventory or contact IPP’s equipment experts to secure a used classifier that matches your separation needs. With ready-to-ship inventory, IPP helps companies enhance process efficiency, improve product quality, and save on equipment investments.

Classifier FAQ

Have questions about Classifiers or our services? Learn more about our products and why customers choose IPP.

What industries rely most on classifiers?
Mining, mineral processing, chemical manufacturing, food production, and recycling industries all depend on classifiers for accurate particle separation and size control.
How do classifiers compare to screens or sieves?
Classifiers separate particles based on settling velocity, density, or fluid dynamics, while screens physically filter particles based on size alone. Classifiers are ideal for finer separations.
What maintenance is required for classifiers?
Routine inspection and cleaning of spiral elements, rake arms, tanks, bearings, and discharge systems are necessary to maintain efficiency and prevent wear.
What are the benefits of buying used or secondhand process equipment from IPP?
Buying used from IPP can save up to 70% compared to buying new, provide immediate availability, promote sustainability, and tap into 47 years of industry-leading expertise.