... dynamic load 26 ton Self-lock trapezoidal screw worm gear screw jack traveling screw detailed informations:1.Model:RN-0. ... ,pushing,pulling and rolling movements3.Self locking trapezoidal screw,heavy duty,precision accuracy,low efficiency,use infrequently4.Arrangement ... Large satellite dish antenna movements,Slitting line,Roll forming machines,Tunnel freezer systems,Oven lifters,Vacuum furnace lid ...