1. Model with in bent sheet metal profiles and bushes, with loads from 800 to 1500 kg and hydraulic distributor standard.
2. Model with extruded “C” shape profiles and bearings, with load of 1500 kg and hydraulic distributor standard.
3. Model with extruded “C” shape, double “T” and bearings, with load of 2000 kg and hydraulic distributor standard.