Used Plastic Shredders for Sale

A plastic shredder is an industrial size-reduction machine that breaks down plastic parts, purgings, packaging, film, and post-consumer waste into smaller, more manageable pieces. Unlike a plastic granulator (which uses high-speed knives to produce uniform regrind), a shredder uses slower-rotating, high-torque cutting shafts to handle bulky, contaminated, or difficult-to-feed material that would jam a granulator. Most plastics recycling lines combine the two: a shredder for primary size reduction followed by a granulator for final particle sizing.

Industrial plastic shredders are categorized by shaft count. Single shaft shredders use one rotor with replaceable knives running against a stationary counter-knife and screen — ideal for film, sheet, blow-molded parts, and clean post-industrial scrap. Dual shaft shredders use two counter-rotating shafts with hooked cutters — perfect for purgings, fiber drums, plastic crates, and tougher mixed materials. Quad shaft and four-shaft shredders combine the dual-shaft action with a screen and re-cutting action for finer output, commonly used in tire, e-waste, and high-spec recycling applications.

When buyers search for a “shredder for sale” or “plastic shredder machine,” they're typically evaluating throughput (lb/hr or kg/hr), shaft configuration, motor horsepower, screen size (which controls particle size), and brand. SSI Shredding Systems, Vecoplan, Weima, Untha, and Granutech-Saturn are the most respected manufacturers in North America. Meadoworks regularly handles used shredders from facility closures and capacity adjustments — many never make it to our public catalog.