Die Clamping Elements

  a. Die Clamping Cylinder

  b. Die Lifter

  c. Hydraulic Power Unit for Die
  Clamping

  d. Quick Die Change System

DIE LIFTER (HYDRAULIC)
SINGLE ACTING LOAD RETURN

Application:
     Die-lifters are used for quick change of dies & tools on presses. Die can be pushed & pulled only in the direction of T slot.

Specifications:

•  Operating pressure - 85 kg/cm2
•  Max. operating pressure 100 kg/cm2
•  Force per roller :- 323 kg at 85 bar.
•  Stroke :- 3 mm

Installation:
     Die-lifters are fixed in T slot. Die-lifters must be 1 mm below bolster top in un pressurized mode. Proper packing should
be used to achieve this specific height. Connector tubes are used to connect two units of die-lifter in the row. End units are
with port at one side & female hole for connector tube at other end. Minimum two rows of die-lifter are required to balance
die weight.

Operation:
     For changing die, first unclamp the die-set. (Keep all cylinders in Parking stand, if die is clamped by die clamping cylinders)
Move ram up. Pressurize die-lifter, so that die is lifted by 2mm above bolster top. Push die-set on trolley. Push new die set on
bolster. Release die-lifter pressure so that die will rest on bolster.

Notes:

•  There should not be pockets on the bottom of die-sets. It is preferred to have hardened strip at bottom  area which is in
    contract with die-lifters.
•  Do not pressurize die-lifters when either dies are in clamped condition on Ram is at bottom dead  center.
•  Die-lifter circuit must have counter balance valve relief valve so that maximum pressure is controlled.
•  Sealkit catalog details available on request.
•  Die lifter with spring lifting are also available

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