SHREDDERS | TECHNOLOGY
machines to shred-chip and size in a single pass without screens or recirculation,” says Neuens. “Our programs also allow a ‘nip function’ to take whole bales without a bale breaking process.” When used in the shredder, the knife technology can uniformly cut to any size in a single pass without a screen to reduce scrap quickly to a reclaimable proportion. The company adds that the technology utilises a unique bed knife design in a dual shaft shredder to cut the width of the material of the shredder. The size of the end-product is based on the size and geometry of the rotary and fixed knives, as well as their gap distances. A shredder using this design can produce over
85% correctly sized material in one pass with less than 10% oversized material, according to Neuens. He notes that the knife system can reduce plastics scrap to the appropriate size with much less energy than typical shearing and grinding equipment. Power efficiency approaches 150% over any standard shredder, the company says. Triplus shredder technology can also be pow-
ered electrically for plastics recycling. Designed to handle large, bulky plastic recyclables, electric shredders are cost-effective, quiet, and eliminate
the potential for hydraulic fluid leaks. For plastics processors that recycle in-house waste plastic or large recycling facilities that need to handle bulky or voluminous scrap efficiently, such as totes and barrels, the traditional shredding option has been hydraulically powered due to the high torque and power delivered. Although this is important for oversized parts and other hard materials, it is not necessary for most plastics like PP, PE or PET. According to BCA Industries, Triplus electric
powered shredders have design advances that can deliver the necessary torque and chamber size to shred bulky, recyclable plastic materials quickly. Electric power offers some key advantages over hydraulic power. Firstly, electric shredders are generally less expensive than comparable hydrau- lic units. They also eliminate the maintenance and inspection associated with hydraulic systems, such as fluid leaks and ruptured hoses. By eliminating hydraulics, when large cutting chambers are still needed, facilities ensure a cleaner, safer work environment and prevent the potential slip and fall hazard represented by leaked hydraulic fluid on the plant floor. Electric shredders are also much quieter. This
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