Size Reduction


A delumper is a pass-through device to reduce agglomerated particles back to the. original particle size. A delumper can be a single or double rotor design with direct drive and sizing screen. They can be constructed of 304 stainless steel or carbon steel. Applications for this equipment would include sugar, cocoa, cement clinker, filter cakes, hygroscopic chemicals and pasta.

Roll Crusher

Single roll crushers use a drum rotor to crush friable materials against a breaker plate. Double roll crushers use compression to reduce particles between the gap of two crushing rolls. Both the single roll and double roll crushers have adjustments to allow for varying particle size outputs. The rolls can be textured, corrugated or can use cast surface plates to provide various crushing configurations.


A hammermill is a mid-air impact crushing and grinding system. The rotor can use fixed or free swinging hammers to impact the material. The grinding chamber classifies the material through a sizing screen or breaker bars to achieve the desired output particle size. These machines vary in size from higher-speed hammermill’s with fine sizing screens to provide a powder like output, up to larger high tonnage hammermill’s that use impact plates and sizing bars to provide high throughput with large particle size outputs. Applications can include chemicals, expeller cake, animal and fish byproducts, clay, limestone, coal and animal feeds.

Roller Mill

The Roller Mill uses a set of free swing journals (grinding rolls) that swing our centrifugally to grind material against a steel bull ring. As the material is feed into the mill, the material is air sweep which creates a fluid bed grinding chamber and also sweeps finer particles up into and integral classifier to provide an accurate product particle size distribution. The fluid bed allows the journals to freely rotate through the material, grinding the material against the steel bull ring.

By adding heat to the sweeping airflow, we can concurrently grind and dry the material. By varying the journal rotational speed, we control the grinding force and the amount of particle reduction. This is a technology that can be used to grind materials down to the 70-325 mesh range. Typical products include Bauxite, Bentonite, clays, coals, coke, dolomite, graphite, lime, limestone, expanded perlite, sulfur, talc, titanium oxide and tobacco.


Shredders come in three configurations; slow speed, high torque shredders, rigid arm shredders and Nife Hog shredders. The slow speed, high torque shredder uses a hydraulic drive to counter rotate to toothed shafts to rip and tear the material. This includes wooden pallets, tires, drywall and other refuge materials.

Rigid arm shredders can be used in reducing high volumes of waste materials and shredding it to a nominal 2” for the sake of bailing or continuing of fiberization. This configuration incorporates a rigid hammer to a rotating shaft and utilizes a sizing screen or sizing bars to achieve the required output particle size.

The Nife Hog shredder is typically used in the wood products industry to hog wood waste, bark and wood pieces. These machines use sizing bars and can have top or side entry inlets for various application requirements.


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