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Winco Plastics, North Aurora, Illinois/USA, a subdivision of Winco Trading, is one of the largest full service plastic recycling companies in the Midwest with 30 years of experience. After purchasing a Lindner re-grinding line including a Micromat 2500 pre-shredding system and a grinder, Winco has significantly increased their plastics waste handling capacity. The range of rigid materials fed into their Lindner system includes HDPE pipes of any size and thickness, HDPE sheets, PE and PP purge, and PC sheet as well as PET, mainly from post-industrial sources such as automotive and others.

Tim Martin, President of Winco Plastics, confirms an output of 4,000 to 6,000 lbs. of ½” regrind material per hour, ready for sale to the company’s clients for further processing in the recycling loop. “One major reason for our decision to purchase Lindner’s re-grinding line was its ability to handle the wide variety of size, weight and form of the expected input material coming from different suppliers”, he says. “We were happy to see that Lindner’s re-grind line is designed to shred heavy parts including pipes up to 8’ long, purges and logs up to Gaylord size as well as light material which can be directly ground. What convinced us even more was that all of this is backed by a high level of sustainability, particularly low power consumption, as well as low-maintenance operation with virtually no rotor wear and a maintenance-friendly layout thanks to the maintenance flap, which makes cleaning and maintenance very easy and convenient without requiring staff to climb inside the hopper. We believed that at the end of the day this combination of plus points would pave the way to a highly cost efficient recycling process.”

Lindner-Recyclingtech America LLC, the US branch of Austrian company Lindner, offered Winco a tailor-made re-grinding line which exactly met their specific needs. In a first step the delivered plastic waste is transferred to a heavy duty feeding belt conveyor, designed to handle all kinds of material loaded by forklift or Gaylord dumper, followed by a Micromat 2500. This high performance single-shaft shredder is equipped with a customized (higher) internal ram enabling high throughput of all input materials as well as an overlapping rotor to avoid bridging of material between ram and rotor during the shredding process. The rotor carries fourfold reversible knives which further assist high productivity operation whilst at the same time facilitating cutting blade replacement and maintenance. The pre-shredded material is discharged from the Micromat by two successive belt conveyors, one of them equipped with a Gaylord dumper for handling any scrap suitable for direct feed into the downstream grinder without prior pre-shredding.