... Max dynamic load 26 ton Self-lock trapezoidal screw MACHINE JACK 500KG detailed informations:1.Model:RN-0. ... .Function: precisely controlled lifting,lowering,pushing,pulling and rolling movements3.Self locking trapezoidal screw,heavy duty,precision accuracy ... jack systems,Large satellite dish antenna movements,Slitting line,Roll forming machines,Tunnel freezer systems,Oven lifters,Vacuum furnace lid ...