granulator static knives | bed knives

Bed knives for granulators

Bed knives are the knives mounted on the grinding chamber of a shredder against which the rotor knives (fly knives) cut. Together with the fly knives, these bed knives (also referred to as static knives) are used in plastics recycling in granulators to shred and finely grind production waste.

Their distance from each other can be adjusted - depending on the input - by means of a defined cutting gap, which enables a clean cut of the material. While the cutting angle of fly knives is mostly flat, bed knives often have a steeper angle. Rotor knives and bed knives can also be varied and optimised in many ways by using different materials and cutting geometries. For example, if the cutting angle is flattened, this results in a more aggressive cut, while knives with a pre-bevel have a considerably more stable cutting edge. The target hardness of the material for fly knives and bed knives is variable in order to optimally adjust them to different areas of application and input materials.

Want to know more about our bed knives?

If you cannot find the right static knife for your granulator, please feel free to contact us. It is our pleasure to help you find the optimal product for your application.

Should you have any further questions about whether and how the service life and durability of your machines can be extended, please reach out to our Sales team. We would like to show you how CUTMETALL products optimize your break down processes!

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How you benefit from Spare parts by CUTMETALL

CUTMETALL products: More than a spare part! Tuning for your machine!

Our spare parts and wear parts are not original equipment manufacturer items (original parts of the machine manufacturers) but rather process-optimized CUTMETALL own brands: A perfect fit. Durable. Economical.

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