Maximum input speed 1500r / min JWM screw lift, maximum lift 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. Low speed, low frequency: mainly used for large loads, low speed and without frequent work place is. 4, maintaining load: trapezoidal screw with automatic locking function, even without the braking device can be maintained load. SJ screw lift, screw lift assured manufacturers (certification), screw lift provided by the Texas Machinery Co., Ltd. Kun-ho. Texas Haokun Machinery Co., Ltd. (www.sdnljsj.com) is a leader in Dezhou, reducer, transmission, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. Endurance leadership with the staff warmly welcome all inquiries negotiations to create a better future for endurance.