Jaw Crushers 7 The BB 50 is designed for a very efficient and convenient size reduction pro-cess. The variable speed can be set between 550 and 950 min-1 to adapt the crushing process to sample requirements. The possibility to reverse the rotat- ing direction is helpful if too much sample material has been fed to the crusher causing it to block.
The jaw crushers are available in 8 different sizes: BB 50, BB 100, BB 200, BB 300 and the bigger models BB 250, BB 400, BB 500 and BB 600. Throughput and final fineness depend on the crusher type, selected gap width and breaking properties of the sample material. Feed sizes range from 40 mm to 350 mm, depending on the model.
The BB 200 is suitable for reducing medium-hard to very-hard substances as well as for brittle and tough materials. The ultimate fineness can be as little as 2 mm and, depending on the material being processed, may be even less. The following is a list of some of the materials which can be ground using the BB …
The BB 51 has been specially designed for sample pre- paration in the laboratory. The space-saving, dust-tight instrument on any laboratory bench. Small amounts of sample with large feed sizes are crushed gently and without loss. The Jaw Crusher BB 51 rests on four rubber feet and has a closed housing whose interior cannot be accessed by hands.
Jaw crusher BB 50 Superiority in detail Fold-back hopper can be removed for easy access Setting the gap width to determine the final fineness The BB 50 is designed for a very efficient and convenient size reduction process. The variable speed can be set between 550 and 950 min-1 to adapt the crushing process to sample requirements.
The jaws are usually constructed from cast steel and fitted with replaceable liners, made from manganese steel, or “Ni-hard,” a Ni-Cr alloyed cast iron. Apart from reducing wear, hard liners are essential to minimize crushing energy consumption by reducing the deformation of …
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