Founded more than 60 years ago, Cumberland plastic granulators have been an important piece in plastic auxiliary equipment for more than half a century. Cumberland Engineering Corporation is widely renowned as a world leader in design and engineering in the size reduction industry. Worldwide Recycling Equipment Sales, LLC is offering 10% off any Cumberland Granulator purchased by May 20, 2012.
 Cumberland Model 384 3KN Granulator |
 Cumberland Model 25 Granulator |
 Cumberland 100 hp Granulator |
The primary use of a granulator is for plastic recycling. The first step in preparing thermoplastic materials for reuse is processing them through a granulator. As the material is fed into the granulator, it falls into the cutting chamber where rotating knives pass alongside stationary knives, shearing the plastic (think scissors). High impact plastics are granulated by knives cutting the plastic like an axe, shattering it. The output is chips of a random size and shape; the maximum chip size is dictated by a screen at the exit of the cutting chamber. The reclamation and reprocessing of plastic material saves money, time, capital landfill and space, and the granulator is the most efficient and cost effective plastic recycling device.
With plastic products making up around 20% of the material found in solid waste recycling streams nationwide, plastic is one of the most commonly recycled materials. Items such as discarded bags, bottles and packaging material find their way from the solid waste stream back on to the market every day. It can be recycled into fiber for polyester carpet; fabric for T-shirts, long underwear, athletic shoes, luggage, upholstery and sweaters; fiberfill for sleeping bags and winter coats; industrial strapping, sheet and film; automotive parts, such as luggage racks, headliners, fuse boxes, bumpers, grilles and door panels; and new PET plastic containers.
Granulators also take care of the unwanted excess from the manufacturing process and rejected parts such as pieces with dimensional inaccuracies or cosmetic defects by converting them into a form suitable for further processing for reuse.