Screw lift hand screw jacks, SWL series worm screw lift is a basic screw jacks lifting parts manufacturers, in line with JB / T8809-2010 (formerly JB / T8809-1998, JB / ZQ4391-86) standard. Carrying capacity 2.5-120T. Maximum input speed 1500r / min, the maximum lifting speed 2.7m / min. There are different types of structures and assembly methods, the lifting height according to user requirements and manufacturing. The device can be self-locking. Screw Jacks manufacturers _ _ screw jack screw jack provided by the Texas first endurance Machinery Co., Ltd. Kun-ho. Texas Haokun Machinery Co., Ltd. (www.sdnljsj.com) strong, credible, in Dezhou reducer, variable speed machine industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving endurance and innovative ideas will lead you hand into the brilliant, for a better future!