ZWS/ZHS — shredders featuring an angled hydraulic ram for municipal solid waste and RDF recycling

Manufacturer: Zerma Germany

  • High torque gear drive
  • Powerful hydraulic swing type pusher
  • Proven well engineering design
  • Smaller footprint compared to traditional shredders with horizontal pushers
  • Bolted in drive shafts
  • Multiple rotor designs and materials
  • Two speed hydraulic comes standard

The ZWS/ZHS series shredders are single shaft shredders with the roller guided hydraulic ram without the risk of blocking excessive wear on guide rails. The machines are very versatile and can be used for shredding of all kinds of input materials and is well suited for different industries. The ZWS are equipped with a 400 mm diameter rotor, ZHS equipped with 600 mm diameter rotor ranging from 600 to 2600 mm width are driven by two oversized gearboxes. The hydraulic power pack is well integrated into the machine housing to save space and protect it from damage but still easy to access or remove for maintenance. The proven E rotor, knife holder and knife design are taken to new dimensions to conquer the most demanding applications and challenges. The machines can be tailored to various applications with advanced controls and hydraulics, hard facing and other wear options.

The ZWS/ZHS shredders have been designed for a wide array of applications and industries like in house and general recycling, electronic waste and post consumer waste handling. Input materials can be all kinds of plastics like lumps, pipes, film, woven bags; electronic waste like cables and ICBs, paper, wood and other organic materials. Depending on input material and the following process the shredded material as defined by the used screen size can be directly used or go into the next step of size reduction for example in a GSE or GSH granulator.

  • The shredders use concave ground square knives, producing high quality output. The cutters can be turned three times after a side is worn out.
  • All ZERMA shredders are equipped with a large diameter flat rotor. The knives are fixed in special knife holders fitted in machined pockets. Optional weld on hard facing is available for abrasive applications.
  • The ZWS/ZHS series shredders benefit from sturdy ram construction incorporating heavy duty guide bearings and universal couplings for reliable operation.
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