New CBW and CGW Series granulators feature exchangeable back plates that modify the cutting chamber from a super-tangential to a restricted tangential configuration.
New CBW and CGW Series granulators feature exchangeable back plates that modify the cutting chamber from a super-tangential to a restricted tangential configuration. This means that the same granulator can handle the bulky thin-walled parts, bottles, sheet and film that normally require tangential feeding, or heavy-wall parts and profiles and sprues/runners that are more suited to a conventional straight-drop feed. This versatility allows processors to achieve maximum throughput and a more consistent and uniform regrind from a granulator that is smaller overall.
The new granulators also have a large swing-away front-panel door that provides quick and easy access to the cutting chamber. The screen cradle and granulate catch bin are actually mounted on the door — in front of the rotor, rather than underneath — so they swing out of the way as the door is opened. This unique design significantly reduces time needed for cleanout and material changeover, and simplifies access to the blades if maintenance is required.
CBW granulators can process up to 500 lb/hr using 10-inch-diameter rotors that are 12, 18 or 24 inches wide. The CGW units are larger, with a 14-inch cutting circle and rotor widths of 18, 24, 36 inches. Maximum throughput for the CGW is 1000 lb/hr. Both come with a 3-blade open rotor as standard, however the CGW is also available with an optional 5-blade open rotor for increased throughput capacity or to restrict the aggressiveness of the rotor action.
When set up in the super-tangential configuration, the CGW granulators have a huge, 17-inch feed opening, which can accept even the bulkiest scrap. Adding the restrictor plate to the back of the cutting chamber reduces the opening to 14 inches. A third bed knife can also be added along with an extended rotor shaft and secondary flywheel to maximize throughput of even tough heavy-walled parts. The smaller CBW units have feed openings of 14 inches and 10 inches for super-tangential and restricted configurations respectively.
Other options include a blower system for regrind evacuation, which can include fines separation or elutriation. Elutriation allows processor to adjust the percentage of fines retained in the regrind to maximize the amount of material reused while ensuring process consistency and product quality.
The wide swing-away front door provides the industry’s fastest cutting-chamber access for cleaning and maintenance. Other features that add to user convenience include easy adjustment of the gap between the rotor and fixed bed knives, ensuring a constant cutting circle for increased throughput and high-quality, uniform regrind. These granulators have hinged feed trays, double-wall sound-proofed hoppers and optional integral sound enclosures to reduce operating noise.
For more information, call the New Product Hotline at 1-888-486-6601