JWM series worm screw jack (Trapezoid screw)
LOW SPEED | LOW FREQUENCY
JWM (trapezoidal screw) is suitable for low speed and low frequency.
Main components: Precision trapezoid screw pair and high precision worm-gears pair.
Compact design, easy operation, convenient maintenance.
2) Low speed, low frequency:
Be suitable for heavy load, low speed, low service frequency.
Trapezoid screw has self-lock function, it can hold up load without braking device when screw stops traveling.
Braking device equipped for self-lock will be of malfunction accidentally when large jolt & impact load occur.