VZi nitrogen-inerted pre-shredder

Safe solutions for recycling hazardous substances of any type

Designed to complement the sturdy and reliable universal pre-shredder (VZ), the VZi pre-shredder (VZi) with controlled and monitored nitrogen-inerting system represents CHEMA‘s innovative response when it comes to shredding volatile, flammable and explosive substances. Thanks to the unique stand-alone design for batchwise operation, this shredder is the first choice for the extension of existing processes or as first element of a new line.


The supplementary trough-type discharge station ensures easy separation of solid matter from the released fluids upon completion of the shredding process.

Benefits of the VZi shredding system

  • Patented system for quick knife replacement
  • Processing of volatile, flammable and explosive substances
  • Shaft breakage is excluded while maximum machine protection is ensured
  • Special bearings provide overload protection of the gear units
  • Stand-alone design
  • Sturdy construction combined with up-to-date design
  • Optimum solution for batchwise operation
  • Low nitrogen consumption
  • Possible separation of solid matter and fluids
  • Closed (inerted) and open (vented) mode possible

Technical specifications – VZi (depending on the selected VZ size)

Typ VZi 95/120 - 55 VZi 110/130 - 75 VZi 125/180 - 75 VZi 140/160 - 132
Drive power (kW) 2 x 55 2 x 75 2 x 75 / 90 2 x 132
Cutter dimensions (mm) 950 x 1,200 1,100 x 1,300 1,250 x 1,800 1,400 x 1,600
Number of knife shafts 2 2 2 2

VZi – the perfect solution for solvent-based substances, flammable and explosive materials!

CHEMA’s VZi is suited for a wide variety of containers – from smallest casks and barrels to IBCs.