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  • August 09, 2026

Advantages of SWL series trapezoidal screw lift/jack reducer


SWL series trapezoidal screw lift/jack reducer with five core advantages

1. Excellent self-locking ability, safe and reliable

The screw lift with worm gear structure can achieve mechanical self-locking by friction angle in a 

stationary state, and will not slip even if the power is cut off. For work platforms, cargo elevators, and 

other scenarios that require maintaining a certain height for a long time, this feature is crucial as it can

 ensure equipment and personnel safety without the need for additional brakes.


2. Accurate positioning control

The screw lift can achieve a linear displacement accuracy of 0.01mm. Combined with servo motors or 

encoders, it can perform complex actions such as multi-point positioning, synchronous lifting, and speed

 adjustment, and is widely used in fields such as automated production lines, medical equipment, and

 experimental instruments that require strict positional accuracy.

3. Strong carrying capacity

From tens of kilograms to hundreds of tons, screw elevators can meet the lifting needs of small fixtures 

to large heavy-duty equipment by selecting different specifications of screws, boxes, and motors. A single

 unit can carry over 100 tons, and through the linkage of multiple units, synchronous lifting of larger

 tonnage can be achieved.

4. Multiple combination methods, flexible adaptation

●Screw motion type: The screw extends and moves in a straight line, and the platform is installed at the

 end of the screw

●Nut sports type: fixed with a screw rod, the nut moves up and down along the screw rod, suitable for 

space limited occasions

●Multiple linkage: Multiple elevators are connected through couplings and steering boxes to achieve 

synchronous action of one motor driving multiple lifting points


5. Easy maintenance and long service life

Using high-quality alloy steel worm gears, quenched screw rods, and high-strength shells, combined with lubricating grease or oil, the screw lift can operate stably for several years under normal working conditions. Regularly replacing lubricants and checking for wear can maintain good performance.


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