Locking devices to lift wheels from the ground and place a machine on legs. We have two versions available: Type 1 with housing of special cast iron. Control pedal and spring foot plate with rubber coating. Pressing pin of round material. Thanks to the built-in spring construction, the foot plate automatically rises. Type 2 with housing of special cast iron and a reinforced control pedal. Increased spring pressure on the foot plate. Foot plate with rubber coating, ensuring better floor contact. Thanks to the built-in spring construction, the foot plate automatically rises. Intended use: locking devices, that are equipped with a heavy spring assembly can temporarily block a vehicle/cart. In this situation, the wheels remains on the ground. Therefore, these truck locks cannot be used as a jack. Version: silver-grey with hammered finish. load capacity of 100 and 150 kg. Much used in mechanical engineering.