TECHNOLOGY | SHREDDERS
ensure circular products and so more recyclate is going to be required. At Weima, we are at the start of the recycling chain with our shredding machines and, as a result, can make an important contribution. In post-consumer recycling, we have seen a trend towards steadily increasing processing volumes for years. Consequently, we have adapted our machines in such a way that they enable higher throughput rates, while also being more cost-efficient.” Henzler adds that the constant development of
Above: CMG Granulators supplies
high-capacity shredding and grinding systems
CMG Granulators’ shredder blade design provides a high degree of cutting precision. The blade is inserted in a V-shaped slot on the rotor, with the assembly providing high resistance to mechanical stress and delivering optimum cutting performance. The company’s Adaptive Motor Power (AMP) controls allow the shredder to self-adjust motor power and rotor RPM, to obtain the highest quality of the shredded plastic with the lowest energy use. The market for shredders and shredding technol- ogy in plastics recycling is particularly good at present, according to German machinery manufac- turer Weima. “There is a continuing rise in the importance of recycling as environmental awareness is increasing,” says Sales Director Patrick Henzler. “Furthermore, resources are limited and there is no alternative to the use of plastics in many industries. To make plastics more sustainable, we need to
materials and rising demand for processing post- consumer materials worldwide is leading to in- creased requests for special solutions. These include solutions for improved cost-efficiency in terms of lower operational costs and minimised downtime. Specific problems for which Weima has developed solutions include the shredding of highly contami- nated materials, such as stretch films with sand, soil and stones or metal pieces. Other projects have involved solutions for voluminous objects like pipes and water tanks to be shredded in full, tear-proof contaminated materials, and fishing nets. Current technical areas of development include the drive- train, cutting geometry and accessibility. To meet these needs, Weima’s latest develop- ments for shredders have included various drive systems for all applications, and the company now offers four different options. These include: an electromechanical drive with Weima WAP gearbox; electromechanical drive with belt; electromechani- cal drive with belt and multi-pole synchronous torque motor (high-torque drive); and a direct drive with hydraulic motor (hydraulic drive). Other developments include easy access for maintenance from large inspection flaps to ensure fast removal of
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www.beiercecycling.com
IMAGE: CMG
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