... ton Max dynamic load 26 ton Self-lock trapezoidal screw MACHINE JACK 500KG detailed informations:1.Model:RN-0.5T,RN ... ,RN-100T2.Function: precisely controlled lifting,lowering,pushing,pulling and rolling movements3.Self locking trapezoidal screw,heavy duty,precision accuracy,low ... ,Theatre stages,Glass charging machines,Steel manufacturing mills,Cold/Hot rolling mills,All tube mills.