Cumberland industrial cutting knife

Industrial Cutting Solutions

Precision Knives for Industrial Recycling

Cumberland Knives delivers precision-engineered cutting blades purpose-built for low speed granulators, central granulators, heavy duty granulators, and multi-purpose shredders. Trusted by recycling operations that demand consistent performance and tight tolerances.

Industrial Grade Steel
Precision Tolerances
Custom Sizes Available
Ships via Virtus Equipment Direct

Equipment We Supply Knives For

Low Speed GranulatorCentral GranulatorHeavy Duty GranulatorCombination Shredder and GranulatorBeside the Press GranulatorPVC PulverizerMulti-Purpose ShredderPlastic Lumps and Purge ShredderPipe and Profile Shredder

Product Range

Built for the Toughest Applications

Every Cumberland knife is manufactured to exacting tolerances, using industrial-grade steel selected for the demands of continuous recycling operations. From low speed granulator knives to heavy duty shredder blades.

Model 20 Stator Knife

Model 20 Stator Knife

Hardened D2 tool steel bed knife compatible with the Cumberland Model 20 granulator. Precision-ground to 58-62 HRC for clean shearing and consistent regrind particle size.

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50B Bed Knife

50B Bed Knife

Stationary counter knife compatible with the Cumberland 50B granulator. Manufactured to exacting dimensional tolerances for direct drop-in replacement.

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50B Duralife Fly Knife

50B Duralife Fly Knife

Extended-life rotor knife compatible with the Cumberland 50B granulator. Engineered for higher wear resistance and longer service intervals in demanding plastics applications.

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Industries Served

Engineered for Every Granulation Application

Plastics Recycling

Low speed granulators, central granulators, and beside-the-press systems reducing post-industrial scrap and regrind

Injection Molding

Beside-the-press and central granulators processing runners, sprues, and rejected parts back into the material loop

Extrusion and Film

Inline and offline granulation of pipe, profile, sheet, and film trim from continuous extrusion lines

Blow Molding

Granulation of flash, parisons, and rejected containers for HDPE, PET, and PP regrind recovery

Ready to Order?

Get the Right Knife for Your Equipment

Browse the full Cumberland Knives catalog on Virtus Equipment Direct and order the precision blades your operation needs.