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 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 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.
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 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.
With more than 50 years of experience, ZERMA is one of the leading manufacturers of high quality size reduction machinery worldwide. The name ZERMA comes from the German word zerkleinerungsmaschinen, meaning crushing machine. Since the company was founded in 1943, this has remained our mission.
ZERMA has traditionally focused on the development and production of size reduction machinery for the plastics industry. However, today ZERMA has expanded into related industries such as tire recycling, e-waste and wood recycling. We remain committed to the improvement and development of size reduction machinery.
The ZERMA product consists of three main machine types; Granulators, Shredders and Pulverizers.