Rotary Lump Breaker

A lump breaker is an industrial size reduction machine designed to break apart agglomerated, caked, or compacted bulk solid materials into a uniform, free-flowing particle size. Unlike crushers or mills, lump breakers use controlled mechanical action — such as rotating blades, fingers, or counter-rotating rotors — to reduce friable material without generating excessive dust or fines.

A delumper is another term for a lump breaker or de-agglomerator — a machine that breaks up clumped, hardened, or agglomerated bulk materials back into a free-flowing state. Delumpers are widely used in chemical, food, pharmaceutical, and fertilizer processing. Jersey Crusher's Lump Busters® and Lump Abradors serve this function with precise, controlled particle size reduction.

Jersey Crusher's rotary lump breakers handle a wide range of friable materials including sugar, salt, spices, chocolate, fertilizers, chemicals, pharmaceuticals, plastics, coal, clay, foundry sand, cannabis biomass, and more. Both shearing-action (Lump Busters®) and abrasion-action (Lump Abradors) models are available to match specific material properties and downstream process requirements.

The Lump Busters® feature counter-rotating dual rotors that use a shearing action to reduce friable material without heavy pounding, making them ideal for precise particle sizing across a broad range of industrial applications. The Lump Abradors use a single large-diameter rotor with impacting fingers that gently abrade material for controlled particle liberation without excessive dust generation. The Lump Abrador also offers tool-free screen and comb changes on sanitary models. Each design is suited to different material properties and processing requirements.

Jersey Crusher offers lump breakers in 316 Sanitary Stainless Steel (for food, pharma, and cosmetics applications), 304 Stainless Steel (general industrial), Carbon Steel with blue enamel finish, and Abrasion-Resistant material variants for aggressive bulk solids. Sanitary units include optional food-grade white epoxy interior finish and baseplates in stainless steel.

Yes. Jersey Crusher's 316 Stainless Steel sanitary models are designed for FDA-adjacent, GMP-aligned, and USDA-compatible production environments. Key food and pharma features include air purge shaft seals to prevent cross-contamination, tool-free screen and comb changes on sanitary Lump Abrador units, optional food-grade white epoxy interior finish, and material traceability documentation available upon request.

Yes. Jersey Crusher offers a free product sample test and evaluation service. You can ship your bulk material to Jersey Crusher's engineering team for analysis and solution design. The team will evaluate your material's properties and throughput requirements, then recommend the appropriate rotary lump breaker model, screen configuration, and rotor speed — with a tailored solution and sample test evaluation provided within one business day.