Heavy Duty Casters&wheels

Factory Insight

» Factory Insight


Our standard centres’ material is carbon steel. We purchase the wheel centres as cast exclusively from certified producers using automated moulding systems. Thanks to the high quality of the raw parts provided, we can reduce machining to a minimum and ensure a high level of concentricity.


After machining, all metal cores are blasted to achieve a pure metallic surface and are then cleaned of residue in special washing machines, degreased and vacuum-dried. This is followed by a sensitive process step: application of the bonding agent. The cores are sprayed with a special bonding agent in computer-controlled systems, thus ensuring the optimal bonding between wheel centre and covering.


Our wheel centres are heated  to a predefined temperature using special fusion ovens before the actual coating takes place in order to bring the core and casting material to the same temperature and to chemically activate the bonding agent. The prepared cores are then coated with polyuerethane.


In the manufacture of polyurethane wheel treads in hot casting, chemical reaction processes take place under strictly controlled conditions and are not terminated until long after the material has hardened. Post-treatment of the coated wheels, known as the curing process, is therefore of great importance. In our curing room, all products consequently undergo a special procedure based on predefined parameters with regard to temperature, humidity and curing duration.


We do dynamic inspection of wheels for first piece and last piece every day, we have developed a special drum test rig. With speeds of up to 30 km/h and a load of up to 70 kN, we can perform endurance tests, load increase tests and driving tests including simulated steering movements and impact loads. For optimal testing of how our products respond to a wide range of challenges, we can simulate a variety of situations in test mode. The tests are of course controlled, monitored and analysed by computer.