Shredder for car tyres

  • Single large diameter rotor (750 mm)
  • Proprietary knife design and material
  • Variable knife gap to improve separation of steel and rubber
  • Compact Heavy Duty design
  • High throughput rates
  • Fast and easy tool change and maintenance


The ZERMA tyre shredders use special highly wear resistant tungsten carbide flat knives, these knives ensure a long lifetime working with abrasive and contaminated materials.

The ZTS and ZTTS shredders are equipped with a large diameter flat rotors with weld on hard facing. The knives are fixed in special knife holders fitted in machined pockets.

The oversized gearbox driving the rotor is supported by a very sturdy torque arm cushioning the shocks created while grinding.

General Description

The ZTS and ZTTS single shaft shredders are specially designed for the processing of complete or pre shred tyres. 

Both machines machines feature a 750 mm diameter rotor with width options 1500mm to 3000 mm with oversized outboard bearings and twin gear drives. 

The tangential infeed ensures optimal feeding of the input materials while eliminating the need for a hydraulic feeding system. 

All tyre shredders are equipped with a complete wear package including rotor hard facing plus special knives and wear plates made from highly wear resistant steel. 

The ZTS and ZTTS ranges differ in the number of stator knives and the screen sizes used. 

The modular design makes it easy to integrate either machine into existing installations.


The ZTS with its single row of stator knives is used to pre-shred complete car tyres or large pieces of pre-reduced truck tyres down to a size of approx 150 mm.

The twin rows of stator knives and screen in the ZTTS enable it to process the tyre shreds down to any required size > 20 mm.

The unique machine design combined with the variable cutting gap create an optimal separation of rubber and steel fractions when the machine is used with 20 mm screen.

Therefore steel can be removed easily in the following process with magnetic separation equipment. The machines are also used in the processing of RDF and other alternative fuel applications.


Typ 1500 2000 3000
Rotor diameter (mm) 760 760 760
Rotor width (mm) 1560 1960 2760
Rotor speed (rpm) 41 41 41
Drive capacity (kW) 2 x 90 2 x 110 auf Anfrage
Rotor knifes (pcs) 76 96 136
Stator blades (rows) 1 or 2 1 or 2 1 or 2
Screen size (mm)
ZTS 80mm screen bars 80mm screen bars 80mm screen bars
ZTTS > 16 > 16 > 16
Effective working area (mm) 1005 x 1620 1005 x 2020 1005 x 2820
Weight approx. (kg)
ZTS 12300 15300 20500
ZTTS 12800 16500 21500
A (mm) 2300 2300 2300
B (mm) 605 605 605
C (mm) 2700 2700 2700
D (mm) 1000 1000 1000
E (mm) 1620 2020 2820
F (mm) 3800 4240 5040

More information about this model can be found on

The values ​​of the individual machines may differ from the values ​​in the tables due to modifications.
The correct values ​​are available from your contact.

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