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Retsch jaw crushers are used for the rapid, gentle crushing and pre-crushing of medium-hard, hard, brittle and tough materials.

The BB 51 bench-top model and the BB 100, BB 200 and BB 300 floor models are suitable for sample preparation in laboratories and industrial plants.

The crushers incorporate a range of performance and safety features and are available in various material versions (such as heavy metal free).

With feed sizes ranging from 35mm to 150mm, the crushers achieve grind sizes down to 0.5mm, depending on the model.

Small amounts of sample can be crushed batch wise; for larger amounts, the floor models can be operated continuously.

Control of the gap width and zero-point adjustment allow for reproducible results.

A Belleville spring washer serves as overload protection and – in conjunction with the central lubrication – ensures a long service life.

The breaking jaws are available in manganese steel, stainless steel, tungsten carbide, zirconium oxide and heavy-metal-free steel to ensure optimum adaptation to application requirements.

Application examples include alloys, basalt, cement clinker, ceramics, chamotte, coal, coke, construction materials, feldspar, glass, granite, minerals, ores, oxide ceramics, quartz, rocks, silicon and slag.

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