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Lump Breakers


Prater’s Lump Breaker
particle size reduction equipment for agglomerated product
Lump breakers, also referred to as lump crushers or flake breakers, provide a simple, durable, and economical means of conditioning materials that have become compacted or lumpy due to storage, transport, or blending.


Simultaneous application of gentle impact and shear results in free-flowing materials with uniform size distribution. Many industries require size uniformity when blending, conveying, and packaging their finished products. Prater Lump Breakers provide cost savings, streamlined operating efficiency, and enhanced product quality, and improves product flow for a variety of applications including sugar, salt, chemicals, cereal, kiln dust, resin, pigment, filter cake, pasta, fertilizer, and more.


    Call us at (281) 350-0550

    or email us at [email protected]


    Simple, economical means of reducing compacted materials into smaller, granulated product.


    Easier and safer to maintain than traditional lump breakers, with a direct drive and tool-less access end-plates.

    Customizable Lump Breakers for your application


    Prater Lump Breakers provide cost savings, streamlined operating efficiency, and enhanced product quality.


    Offering a wide spectrum of blade designs, options for sanitary construction or low profile design, quick-clean capability, and ability to integrate with your system, Prater Lump Breakers can be customized to your specific application.


    Key Prater benefits include:

    • Durable construction for a long life
    • Designed for easy parts replacement
    • Skilled engineering & design team
    • Customizable options to suit your specific application
    • State-of-the-art test labs & unparalleled customer service


    Lump Breaker in Action

    Material is gravity-fed into the top of the unit where rotor blades impact the lumpy or compacted material. Blades intermesh with each other or with stationary blades to ensure sufficient material contact. For harder lumps, an optional screen can be used to extend retention time. Fully de-lumped material exits by gravity discharge through the optional  screen. Screens with different openings are easily  interchanged to accommodate a variety of material types and to allow for specific output characteristics. Large operating clearances and low operating speed minimizes shear and impact that eliminates  dust generation and size reduction of particles.

    • Durable, heavy-duty construction ensuring long service lifespan
    • Mild steel or stainless steel models available, depending upon the application
    • Easy installation and maintenance
    • Easy replacement of internal components
    • A wide spectrum of blade designs, tailored for the specific application
    • Externally mounted bearings with optional air-purge seals to mitigate contamination
    • Customizable screen sizes for any sizing application
    • V-belt, cogged belt, or direct drive designs available
    • Low-profile design fits in tight spaces, simplifies installation
    • Optional wear liners and wear-resistant blades available
    • Quick-clean capability for minimizing downtime
    • Sanitary construction options as required by the application
    • Integrated designs with bag-dump workstations or bulk bag unloading systems available
    • Superior de-lumping for optimized product handling
    • Heavy-duty dual- or single-shaft models available
    Lump breaker integration schematic
    Quick-Clean Lump Breaker – Overview Video