Large Parts Shredders

Zerma ZIS Shredder

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  • Zerma ZIS Shredder
  • Zerma ZIS E-style rotor with bolted knife holderse
  • ZIS Cutting Chamber
  • Zerma concave rotor knife

Large Parts Shredders


Designed for the size reduction of voluminous parts

General Description

The ZIS series shredders are single shaft shredders with a large internal volume. The redesigned hydraulic pusher system creates about 35% more space in the cutting chamber while increasing the power and speed of the ram itself. The machines are equipped with a 457 mm diameter ZERMA E rotor with widths ranging from 1200 to 2000 mm.As on the ZSS machines the rotor is driven via an oversized gearbox. The completely closed welded steel housing increases the stability and avoids material spillage.The ZIS inherits all of the advantages of the ZERMA knife and knife holder design as well as standard features such as outboard bearings, hydraulic screen cradle, it's easy maintainability and advanced controls.


The ZIS shredders have been designed with big volume parts such as IBCs, pallets and big barrels in mind. While it can be used for in house recycling in big volume blow moulding operations it is also versatile enough to be used for general recycling in the plastic and wood industry. Like all ZERMA shredders the ZIS can be equipped with a wear package for processing of highly abrasive or filled materials.


  • 35% more internal volume compared to the ZSS series
  • Internal hydraulic pusher
  • variable faster pusher movement
  • smaller footprint compared to traditional shredders with horizontal pushers
  • closed cutting chamber to avoid material spillage
  • all advantages of the ZSS series


The shredders use concave ground square knives, producing high quality output. The cutters can be turned 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 internal ram design on the ZIS series allows the cutting chamber volume to be increased while keeping a small footprint. Making the ZIS ideal for shredding of big volume parts.