1)Screw jacks is suitable for low speed and low frequency.
2)compact design, easy operation .
3)Has self-lock

 (1)JWM series Screw Jacks are suitable for low speed and low frequency. Its main features are compact design, easy operation, convenient maintenance, and be suitable for heavy load, low speed, low service frequency. It has self-lock function, it can hold up load without braking device when screw stops traveling.

(2)JWB series Screw Jacks is suitable for high speed, high frequency and excellent performance. Its main components are high precision ball screw pair and worm-gears pair. Only a little drive power can generate great thrust force, and high precision ball screw can make JWB's lifetime longer by more than 3 times comparing with JWM serie