Q: What is the difference between a acme screw jack and a ball screw jack? A: Acme screw jack uses an acme threaded screw that is typically self-locking, meaning it will hold its position without a brake. Ball screw jacks use ball screws to convert rotary motion to linear movement, and require 1/3 the horsepower compared to a acme screw jack. Due to the efficiency of the ball screw,brakes must be used to stop and hold the load screw in position. Brakes are also recommended for use on any jacks if[...]

NOSEN bevel gear jack offers higher efficiency and greater speed than other series worm gear screw jacks. At the same time, Bevel gear jack still provide the benefit of a self-locking screw-no special brake is required to prevent the jack from lowering under load. Spiral bevel gears increase strength for higher capacities. NOSEN bevel gear jack also act as a miter gear box, making them an ideal choice for screw jack lift system. NOSEN bevel gear jack are also available complete with reducer[...]

NOSEN new Europe-type machine screw actuators RNF-Series is popular on the world market with below features: 1. Same dimensions with ZIMM, Pfaff-silberblau, Grob GmbH, Inkoma, Servomech, Unimec, Thomson Linear etc. 2. Model: RNF016, RNF018, RNF020, RNF030, RNF040, RNF055, RNF060, RNF070, RNF080, RNF100, RNF120 3. Function: Precisely controlled lifting, lowering, pushing, pulling and rolling movements 4. Self locking trapezoidal screw, heavy duty, low efficiency, use infrequently 5. Arrangement:[...]

* Max static load 100 tons * Max dynamic load 26 tons * Self-locking trapezoidal screw * Low efficiency * Use infrequently[...]

* Max load 50 tons * Self-locking trapezoidal screw * Low efficiency * Use infrequently * Anti-backlash nut device[...]