Long and woolly chips result from many treatment processes, often have a big volume, are not easy to transport, are hard to process and cause difficulties in the logistics. The best solution for these issues are chip crushers from Lanner:
The volume of the coolant containing or dry long and woolly chips can be reduced up to 80 % by crushing them. A chip conveyor or chip cart dumper puts the chips into the infeed hopper. Of course, the crusher can also be placed directly under the tooling machine.
Because of the force of gravity the chips are pulled downwards by the knife arms to the tearing block in the vertical working chip crusher – in this section the pre-crushing happens. A rotating knife head with hardened crushing tools moves the long and woolly chips to the tearing blocks which are mounted fixed in the grinding hopper.
Afterwards the pre-crushed chips fall into the crushing mill where they are crushed again to a minimum size. These chip crushers also minimize really tough chips. The biggest advantage of these chip crushers is the integrated tramp metal ejector. Here mistakenly initiated tramp metals are sorted out. This feature is also included in the smallest machine!
The chip crusher can be expanded by a hydraulic drive, special material for life extension or an inspection cover in the hopper. For special customer requests e. g. different types of material Lanner can offer different types of grinding mills to optimize the volume reduction.
Another advantage is that wear parts can be re-grinded easily with standard tools. Changing of wear parts is possible within very short time. Thanks to the robust construction chip crushers from Lanner are working around the clock for decades. The vertically working chip crusher needs very few energy in comparison to single or various draft shredders.