Buy hollow shaft screw jack from canada customer who imports Jacton screw jacks for their machines. A complete screw jack systems include one hollow shaft screw jack, one braking motor, one safety coupling, one rigid coupling, one two way gearbox with solid shaft. Custom made the screw jack with hollow shaft. Custom made double lead screw. Custom made double lead bronze travel nut. Custom made the lifting screw mixes plain shaft and threads.
Features: 1.hollow shaft screw jack 2.braking motor 3.safety coupling 4.rigid coupling 5.two way gearbox 6.from canada customer