We are professional hand crank acme jacks, screw jack with hand wheel, hand crank screw jack,handwheel gearbox lift manufacturers and factory. 

hand crank acme jacks, screw jack with hand wheel, hand crank screw jack,handwheel gearbox lift Features
1. Lifting Force 5kN. Under max. lifting force, drive torque high speed 2.61Nm, low speed 0.83Nm.
2. Acme screw diameter 18 mm, pitch 4 mm.
3. High gear ratio 1/4, low gear ratio 1/16.
4. Translating screw, rotating screw, keyed screw configurations in upright or inverted mounting orientation.
5. Precision positioning, self-locking acme screw which supports the loads and hold position with no need to employ brake mechanism or other locking systems.
6. Hand-operated screw jack by handle or crank, motorised screw jack by by 3-phase or single phase motor or gear motor.
7. No standard acme screw travel length, all acme screw travel length is processed according customers requirements. Maximum permissible 400mm travel length.
8. Amce screw end fittings include top plate, clevis end, plain end, threaded end and forked head.
9. Individually or multiple screw jack lift system arrangements are available.