Series 840 – power grippers with stroke, clamping diameter 30 mm

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Product features
  • Grippers with high gripping force and narrow closing gap for flat sprues
  • Feed stroke (cylinder 1) moves gripper towards the mold for part removal
  • Back stroke (cylinder 2) fully retracts gripper to enable undisturbed part release, e.g. on a conveyor belt
  • Grippers are self-centering
  • Medium: filtered and oiled/unoiled air
  • Suitable for heavy-duty applications due to closed, coaxial cylinder guiding
  • Part control via large area sensor activation, regardless of sprue position (GR04.140B, GR04.140B/NPN)
  • Detection of stroke via optional cylinder sensors
  • Easy exchange of jaws without snap-rings
  • If required, the grippers can quickly be changed over to non-self-centering
  • Included in scope of delivery of GR04.840B: sensor GR04.131-S1, resp. GR04.131-S2, cable 0.2 m, 3-pin M8 male connector, free end; extension cable 2 m, 3-pin M8 male connector, free end
  • Please refer to "suitable sensors" for cylinder sensors
GR04.840A-20 | GR04.840B-20 | GR04.840B-30 | GR04.840B-20/NPN | GR04.840B-30/NPN
GR04.840A-20-20 | GR04.840A-20-30 | GR04.840B-20-20 | GR04.840B-20-30 | GR04.840B-20-20/NPN | GR04.840B-20-30/NPN
  • *=The length L refers to the gripper with retracted cylinders. Total length = L + stroke 1 (resp. stroke 1 + stroke 2).
    2=Compressed air connection cylinder extended
    3=Compressed air connection cylinder retracted
    0=Compressed air connection gripper
Item No.GR04.840A-20GR04.840A-20-20GR04.840A-20-30GR04.840B-20GR04.840B-30GR04.840B-20-20GR04.840B-20-30GR04.840B-20/NPNGR04.840B-30/NPNGR04.840B-20-20/NPNGR04.840B-20-30/NPN
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