TECHNOLOGY | GRANULATORS
Hosokawa Alpine’s Polyplex PPC 50/120 combines a shredder and granulator in a single machine
The way the Polyplex works is as simple as it is
efficient. Using a feed unit, the feed material of the shredder/granulator mill combination is dis- charged in a self-dosing operation. The supply can be individually adjusted according to the task. After passing through the shredding zone, the shredded material enters the granulator area where it is further reduced. Be it injection mould- ing, chunks and plates weighing several hundred kilos, or profiles and tubes, Hosokawa Alpine says the Polyplex can be used universally and could be especially useful for in-house recycling as the design allows varied materials to be fed into the machine at the same time.
“Being able to simultaneously feed a wide
Right: The Raptor Duo series from Rapid Granula- tor combines a shredder with a granulator
variety of plastic waste eliminates the need for pre-sorting or metered material feeding,” says Zöttl. “This makes the Polyplex a very practical solution for our customers.” Rapid Granulator has developed the Rapid Duo Plus, a redesign of its original Duo model, a one-step solution in which a shredder and granulator are in a single unit. The Rapid Duo series, part of Rapid Granula- tor’s Raptor series of shredders, enables the production of granulate directly from the size reduction of purgings in one-step, says Jim Hoffman, President of Rapid Granulator’s US operations. “The Raptor series is primarily targeted to plastics processors for the handling of in-house products,” said Hoffman. The Duo Plus model
42 PLASTICS RECYCLING WORLD | September 2023
features the company’s “open-hearted” door design for both the shredder and the granulator systems, in which the front door is hinged on the side, allowing direct and unrestricted access to the shredder and the granulator elements. The screen elements, for both the shredder and the granula- tor, are mounted in the door, and reversible for extended use. Contamination becomes immedi- ately visible when the door is open, providing quick access for maintenance operations such as cleaning and servicing, says Hoffmann. The Duo Plus is offered in 36 base configura- tions to handle a variety of applications, in operat- ing widths of 800 mm and 1,350 mm and with a choice of three cutting systems: Quad Cut, Claw and Power Wedge. The Duo Plus series incorporates a double-scis- sor knife configuration, where both the fixed and rotating knives are angled. The design significantly reduces the force needed to cut the plastic, and, in combination with a large torque approach, means that a smaller motor can be used, saving energy. Hoffman says the bolted modular design allows
easy change of wear parts. For example, bolts do not need to be removed to remove the screen due to the screen cradle design. The granule bin can slide out for quick removal. The shredder hopper, which is mounted on the rear hinge, can be tilted back when the door is opened, for ease of access. Two material feeding equipment designs are available for the Duo Plus series, which include FlexiPush, a pneumatically driven pusher designed to introduce lumpy materials to the size reduction unit, and the PowerPush hydraulically driven pusher that handles sheet and film. A PowerPush-XT unit provides extended pusher length, says Hoffman. Cumberland came to the aid of recycler Save That Stuff (STS), based in Boston, US, for the installation of a turn-key
recycling system involving size reduction and metal separation. This was the response to STS winning a major order from a leading USA retailer to
IMAGE: RAPID GRANULATOR
recycle plastic clothes hangers into PP regrind. Brad Cole, Sales Manager at STS, says that the company needed to
upgrade its existing machinery
www.plasticsrecyclingworld.com
IMAGE: HOSOKAWA ALPINE
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