Hydraulic Forwarding Work Support
Hydraulic work support is a replacement to the adjustable screw jack. It is not a force exerting element but a resistance giving element.
Irregular job is supported on only three points. If an additional support is required, it must be adjustable, like the manual screw jack support. Hydraulic work support is the right solution for such application. The work support is used to support the job, to avoid deflection and vibrations due to cutting and clamping forces. It helps to clamp the job without distorion. These work supports are mounted directly in manifold as per drawings. These work supports are more suitable where space is limited.
A plunger is in retracted position in the un-pressurised mode. After applying pressure hydraulic piston moves forward to push spring. Hence supporting plunger touches the job by a light spring force. After 30 – 40 bar pressure sleeve collapses to hold the supporting plunger. It resists to move in the axial direction due to frictional force. The resistance is equal to the radial inward force multiplied by the coefficient of friction.