Jaw Crushers BB 51
 The BB 51 has been specially designed for sample preparation in the laboratory. It is used for the rapid, gentle crushing and pre-crushing of medium-hard, hard, brittle and tough materials.
The space-saving, dust-tight instrument fits on any laboratory bench and is ideally suited to crush small amounts of sample with large feed sizes gently and without loss. To avoid metallic contamination, the grinding chamber is available of ceramic materials. With its digital gap width display and zero point adjustment the BB 51 allows for reproducible results.
Application Examples:
alloys, basalt, bones, cement clinker, ceramics, chamotte, coal, coke, construction materials, feldspar, glass, granite, minerals, ores, oxide ceramics, quartz, rocks, silicon, slag, ...
- powerful size reduction thanks to 1.1 kW industrial drive
- compact, benchtop instrument
- wear compensation with zero-point adjustment
- digital gap width setting
- wide range of materials for contamination free grinding
- dust-tight housing
| Applications |
coarse and pre-crushing |
| Field of application |
agriculture, biology, construction materials, geology / metallurgy, glass / ceramics, medicine / pharmaceuticals, ... |
| Feed material |
medium-hard, hard, brittle, tough |
| Material feed size* |
< 35 mm |
| Final fineness* |
< 0.5 mm |
| Material of grinding tools |
manganese steel, stainless steel, tungsten carbide, zirconium oxide, steel 1.1750 (for heavy-metal free grinding) |
| Collector capacity |
1 litre |
| Throughput* |
1 litre/batch |
| Jaw width |
43 x 55 mm |
| Gap width setting |
0 - 10 mm in increments 0.1mm |
| Gap width display |
digital |
| Zero point adjustment |
yes |
| Hinged hopper |
- |
| Dust extraction unit |
already dust-tight |
| Central lubrication |
- |
| Process line version |
- |
| Drive |
1-phase motor |
| Drive power |
1.1 kW |
| Protection code |
IP 20 / IP 00 at ventilation slots |
| W x H x D |
360 x 510 x 580 mm |
| Net weight |
approx. 79 kg |
| Workplace related emission value |
LpAeq 83.7 dB(A) |
| Documentation |
Operation & Application Video |
| Standards |
CE |
*depending on feed material and instrument configuration/settings
 The Jaw Crusher BB 51 is a robust and powerful forced-feed crusher. The feed material passes through the no-rebound hopper and enters the crushing chamber. Size reduction takes place in the wedgeshaped area between the fixed crushing arm and one moved by an eccentric drive shaft. The elliptical motion crushes the sample which then falls under gravity.
As soon as the sample is smaller than the discharge gap width, it falls into a removable collector. The continuous gap width setting with digital display ensure optimal size reduction in accordance with the set gap width value.
Product overview
Jaw Crushers
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