Jaw Crusher BB 250
Retsch | Sample Preparation - Inorganic
The RETSCH BB 250 is a jaw crusher designed for primary size reduction of hard, brittle, and tough materials. It's commonly used in laboratories and industrial settings for crushing various materials such as minerals, rocks, construction materials, glass, ceramics, and many others. With its powerful crushing capability, it's often employed for sample preparation in analytical chemistry, geology, metallurgy, and material science research. The BB 250 operates by applying pressure to the feed material between two jaws, one fixed and the other movable, to achieve the desired size reduction.
Application Examples
alloys, basalt, cement clinker, ceramics, chamotte, coal, coke, construction materials, feldspar, glass, granite, minerals, ores, oxide ceramics, quartz, rocks, silicon, slag, ...
Product Advantages
- high crushing ratio
- front door facilitates cleaning
- infinite/continuous gap width setting
- overload protection
- wide range of materials for contamination free grinding
- no-rebound feed hopper, removable
- sample collector with safety switch
- collecting receptacle with outlet for continuous operation
- connector for dust extraction
- special version with automated sorting of undersize (3 fractions) and oversize (1 fraction)
Features
Applications coarse and pre-crushing
Field of application chemistry / plastics, construction materials, engineering / electronics, environment / recycling, geology / metallurgy, glass / ceramics
Feed material medium-hard, hard, brittle, tough
Size reduction principle pressure
Material feed size* < 120 x 90 mm
Final fineness* < 2 mm
Material of grinding tools manganese steel, stainless steel, tungsten carbide, steel for heavy-metal free grinding
Jaw width 120 x 90 mm
Gap width setting 0 - 30 mm
Gap width display scale
Zero point adjustment yes
Wearing rate display yes, up to minus 10 mm
Removable hopper yes
Dust extraction unit yes
Central lubrication -
Process line version optional
Collector capacity 10 l
Base frame vario frame (adjustable for continous crushing)
Drive 3-phase motor
Drive power 3.0 kW
Electrical supply data different voltages
Power connection 3-phase
Protection code IP 55
W x H x D closed 695 x 1399 x 719 mm
Net weight ~ 350 kg
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