Aftermarket Service

Experts in Size Reduction

Cumberland has you covered when it comes to granulating and shredding of plastics from injection molding, blow molding, roto molding, film, and extrusion pieces. Cumberland traces our experience and knowledge back to the company’s founding in 1939. With a multi-million-dollar spare parts inventory that is ready to ship within 24 hours, you can be sure that the part you require is available and affordable. Our experienced Aftermarket Parts Support Team is prepared to assist you in choosing the correct knives and screens, ensuring you have less downtime in your facility.

Buy Parts Online

Order your size reduction parts and accessories from your machine’s manufacture, ensuring it’s the one specified for optimal performance.



A granulator performs best and most economical when the blade is sharp. Regular knife changes and correct setting of the cutting gap help ensure you produce high quality regrind and reduced power consumption. Cumberland’s high quality knives are designed so that they meet the demanding needs of the size reduction process and reduce downtime. Knives are manufactured from the highest quality steel and to dimensional tolerances that meet or exceed OEM specifications. Cumberland uses heat treated high carbon high chromium D2 steel as well as specialized coatings that ensure our knives last longer than the competition. All blades are match ground per set to ensure a precise gap fit, precision cutting, and longevity.


Cumberland has been producing granulator screens for over 75 years. Screens are manufactured from the highest quality materials, treated for wear resistance, and composed of stainless steel for longevity. Most standard screen sizes are available to ship within 24 hours, specialty screens can be quickly manufactured to your specific needs.  The right screen size can make a big impact on the performance of your machine. You can trust our Aftermarket Support Team to help you select the correct screen for your size reduction application.

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+86 512 8717 1919

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Company Information

2900 S. 160th Street
New Berlin, WI 53151

2900 S. 160th St.
New Berlin, WI 53151
P: 262-641-8600
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