This modular knife assembly can be made to any size up to 5.5m/18′ cut width. It has a rotary crush cut blade for perforating, crush cutting, or score cutting of the material. Also available is the rotary shear cut blade, which could be used in place of the crush cut blade, which cuts against a hardened anvil. Two actuators are available: a pneumatic system or a digital electric drive package.
The cutting process starts with the material entering the unit up to the specified length. Then the clamp secures the material in place as the blade travels straight across the web for a clean cut. End-of-stroke sensors indicate when the cut has come to each end, which allows the unit to cut in either direction.