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Crush Cutter
Also known as: machine knife assembly, air knife assembly, circular knife assembly.
This rotary crusher is capable of thousands of cuts per minute. It is built in a modular configuration so it can be incorporated into a new machine or replace existing units. Assemblies can be designed to your specifications.
The rotary crusher has an extended shaft on the cutting cylinder where a timing pulley or gear can be attached. The rotary crusher should always run faster than the web to ensure good cut quality without disturbing the web. The cut length is determined by the relationship of web speed to cutting speed. Rotary units can have a crush cut or shear cut blade.
A crush cut is achieved by the blade in the top cylinder, cutting against a hardened anvil roll. These units have blade spacing from 2 in. and up and are good for thin materials. The crusher has a unique quick change blade design so even an unskilled operator can install a new blade in a few minutes.
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