Hy-Power Clamps Pvt Ltd - Hydraulic Work Support

Hydraulic Work Supports

a. Hydraulic Work Support

HYDRAULIC WORK SUPPORT
PNEUMATIC FORWADING / SPRING FORWADING

Hydraulic work support is a replacement to the adjustable screw jack. This is not a force giving element but a resistance giving element.

Details

Application:
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 an 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 any distortion.

Principle:
A plunger is free in the unpressurised mode. It touches the job either by a light
spring force or by pneumatic pressure. In pressurised mode, it resists to move in the axial direction. The resistance is
equal to the radial inward force multiplied by the coefficient of friction.

Versions:

For spring forwarding work support, the plunger is normally in the extended position due to the spring force. This spring
force can be adjusted with the help of a screw. The plunger gets pressed either by the weight of a component or by the
clamping force (which acts in the direction of the fixed support). After applying pressure, the plunger gets locked.
For pneumatic forwarding work support, the plunger is normally in the retracted position due to the spring force. After
applying pneumatic pressure, the plunger moves forward to touch the component. Pneumatic pressure is regulated to
control the plunger forwarding force. Hydraulic pressure is applied to lock the plunger, after the pneumatic pressure with
a lag.

Notes:

For spring forwarding work support, a breather is provided. It should be protected from cutting fluid and coolant.
If a clamping force is applied on the work support, it should not be more than 50 % of the support force.
Use separate intensifiers for the work support and the clamping cylinders.
Heavy extensions to plunger can influence the contact force of the work support.
For ordering the seal kit, add the prefix "S" to the part number.
Sealkit catalog details available on request.

Specifications:

Minimum hydraulic operating pressure - 100 bar.
Maximum hydraulic operating pressure - 250 bar.
Minimum pneumatic operating pressure - 1 to 2 bar.
For work support 3310-XXX, elastic deformation under load is approx. 0.002 mm per kN.
For work support 3320-XXX, elastic deformation under load is approx. 0.001 mm per kN.

Application:

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