Retsch BB2 Jaw Crusher

The BB 2 jaw crusher is used for fast, soft, coarse and preliminary crushing of medium, hard, brittle and hard materials. The design variants (e.g. heavy metal-free) and the performance and safety features make it ideal for sample preparation in the laboratory and factory. Smaller sample quantities can be crushed in batches in the BB 2, with larger quantities continuous operation is possible. Adjustment of the gap width and the zero point enable reproducible results. The disc spring package is an overload protection for the device and, together with the central lubrication system, guarantees a long operating time. Application examples Basalt, building materials, ores, feldspar, glass, granite, ceramics, coal, coke, alloys, minerals, oxide ceramics, quartz, fireclay, slag, silicon, stones, cement clinker, … Advantages High degree of grinding Zero point adjustment for wear compensation Adjustment of the split width Overload protection Large selection of materials for analysis neutral grinding Non-splashing hinged funnel with quick release Brake motor with safety switch Easy cleaning of the crushing chamber Continuous comminution Dust extraction connection Central lubrication Installation version for online use Version for grinding semiconductor materials Working principle The BB 2 jaw crusher is a robust and powerful single toggle toggle breaker. The feed material enters the grinding chamber through the non-recoil hopper. The crushing takes place in the wedge-shaped shaft between the fixed crushing arm and the crushing arm which is moved by an eccentric shaft. Due to the elliptical movement sequence, the feed material is crushed and guided downwards. Once the material is finer than the lowest crush gap adjustment, it falls into a removable collection container. The infinitely variable gap adjustment ensures optimum adjustment in accordance with the material supplied and the desired final fineness. This is an older model but works just as well.