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

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.