End Effectors

End Effectors within Robotics & Automation.

Category CAT-000000050

Subcategories

Publications

• OT-2026-000007890
  Three cup vacuum gripper, three outlet manifold, common isolation valve, two stage ejector, manifold pressure sensor, pulsed blow-off before set-down, on a tool changer
  September 17, 2026 · Vacuum Grippers · 1,249 words

  A suction-cup vacuum gripping tool comprising one tool-change interface, three suction cups, one ejector, one isolation valve, one manifold, one pressure sensor and one blow-off valve. When the suction cups reach the workpiece, the suction cups are evacuated by the ejector. Before the workpiece reaches the set-down pos

• OT-2026-000007891
  Three bellows cup vacuum gripper, three zone face, per zone isolation, plant vacuum fed, vented after set-down, on a tool changer
  September 17, 2026 · Vacuum Grippers · 1,127 words

  A zoned vacuum gripping tool comprising one tool-change interface, three bellows cups, one plant vacuum connection, three isolation valves, three zone branches, one contact detector and one vent valve. When the bellows cups reach the workpiece, the bellows cups are evacuated by the plant vacuum connection. After the wo

• OT-2026-000007892
  Two bellows cup vacuum gripper, two outlet manifold, plant vacuum fed, vented before set-down, on a tool changer
  September 17, 2026 · Vacuum Grippers · 939 words

  A bellows-cup vacuum gripping tool comprising one tool-change interface, two bellows cups, one plant vacuum connection, one manifold, one contact detector and one vent valve. When the bellows cups reach the workpiece, the bellows cups are evacuated by the plant vacuum connection. Before the workpiece reaches the set-do

• OT-2026-000007893
  Single cup vacuum gripper, common isolation valve, single stage ejector, supply line pressure sensor, pulsed blow-off before set-down
  September 17, 2026 · Vacuum Grippers · 1,225 words

  A suction-cup vacuum gripping tool comprising one mounting flange, one suction cup, one ejector, one isolation valve, one pressure sensor, one contact detector and one blow-off valve. When the suction cup reaches the workpiece, the suction cup is evacuated by the ejector. Before the workpiece reaches the set-down posit

• OT-2026-000007894
  Foam pad vacuum gripper, four zone face, per zone isolation, three stage ejector, pressure sensor per zone, pulsed blow-off after set-down, on a tool changer
  September 17, 2026 · Vacuum Grippers · 1,540 words

  A zoned vacuum gripping tool comprising one tool-change interface, one foam pad, one ejector, four isolation valves, four zone branches, four pressure sensors, one contact detector and one blow-off valve. When the foam pad reaches the workpiece, the foam pad is evacuated by the ejector. After the workpiece has reached

• OT-2026-000007895
  Three cup vacuum gripper, three zone face, four outlet manifold, three stage ejector, pressure sensor per zone, sustained blow-off before set-down, on a tool changer
  September 17, 2026 · Vacuum Grippers · 1,312 words

  A zoned vacuum gripping tool comprising one tool-change interface, three suction cups, one ejector, one manifold, three zone branches, three pressure sensors and one blow-off valve. When the suction cups reach the workpiece, the suction cups are evacuated by the ejector. Before the workpiece reaches the set-down positi

• OT-2026-000007896
  Three cup vacuum gripper, three zone face, six outlet manifold, pump fed, vented after set-down
  September 17, 2026 · Vacuum Grippers · 949 words

  A zoned vacuum gripping tool comprising one mounting flange, three suction cups, one vacuum pump, one manifold, three zone branches, one contact detector and one vent valve. When the suction cups reach the workpiece, the suction cups are evacuated by the vacuum pump. After the workpiece has reached the set-down positio

• OT-2026-000007897
  Two cup vacuum gripper, two zone face, per zone isolation, two stage ejector, pressure sensor per zone, vented after set-down, on a tool changer
  September 17, 2026 · Vacuum Grippers · 1,422 words

  A zoned vacuum gripping tool comprising one tool-change interface, two suction cups, one ejector, two isolation valves, two zone branches, two pressure sensors, one contact detector and one vent valve. When the suction cups reach the workpiece, the suction cups are evacuated by the ejector. After the workpiece has reac

• OT-2026-000007898
  Foam pad vacuum gripper, three zone face, three outlet manifold, plant vacuum fed, pulsed blow-off after set-down, on a tool changer
  September 17, 2026 · Vacuum Grippers · 1,091 words

  A zoned vacuum gripping tool comprising one tool-change interface, one foam pad, one plant vacuum connection, one manifold, three zone branches, one contact detector and one blow-off valve. When the foam pad reaches the workpiece, the foam pad is evacuated by the plant vacuum connection. After the workpiece has reached

• OT-2026-000007899
  Two cup vacuum gripper, two zone face, six outlet manifold, single stage ejector, pressure sensor per zone, vented after set-down, on a tool changer
  September 17, 2026 · Vacuum Grippers · 1,158 words

  A zoned vacuum gripping tool comprising one tool-change interface, two suction cups, one ejector, one manifold, two zone branches, two pressure sensors and one vent valve. When the suction cups reach the workpiece, the suction cups are evacuated by the ejector. After the workpiece has reached the set-down position, the

• OT-2026-000007900
  Four cup vacuum gripper, four zone face, six outlet manifold, two stage ejector, pressure sensor per zone, vented after set-down, on a tool changer
  September 17, 2026 · Vacuum Grippers · 1,165 words

  A zoned vacuum gripping tool comprising one tool-change interface, four suction cups, one ejector, one manifold, four zone branches, four pressure sensors and one vent valve. When the suction cups reach the workpiece, the suction cups are evacuated by the ejector. After the workpiece has reached the set-down position,

• OT-2026-000007901
  Four cup vacuum gripper, four zone face, six outlet manifold, pump fed, manifold pressure sensor, pulsed blow-off after set-down, on a tool changer
  September 17, 2026 · Vacuum Grippers · 1,125 words

  A zoned vacuum gripping tool comprising one tool-change interface, four suction cups, one vacuum pump, one manifold, four zone branches, one pressure sensor and one blow-off valve. When the suction cups reach the workpiece, the suction cups are evacuated by the vacuum pump. After the workpiece has reached the set-down

• OT-2026-000007902
  Foam pad vacuum gripper, three stage ejector, supply line pressure sensor, pulsed blow-off after set-down
  September 17, 2026 · Vacuum Grippers · 1,036 words

  A foam-pad vacuum gripping tool comprising one mounting flange, one foam pad, one ejector, one pressure sensor, one contact detector and one blow-off valve. When the foam pad reaches the workpiece, the foam pad is evacuated by the ejector. After the workpiece has reached the set-down position, the workpiece is blown of

• OT-2026-000007903
  Three bellows cup vacuum gripper, three outlet manifold, two stage ejector, manifold pressure sensor, sustained blow-off before set-down, on a tool changer
  September 17, 2026 · Vacuum Grippers · 1,196 words

  A bellows-cup vacuum gripping tool comprising one tool-change interface, three bellows cups, one ejector, one manifold, one pressure sensor, one contact detector and one blow-off valve. When the bellows cups reach the workpiece, the bellows cups are evacuated by the ejector. Before the workpiece reaches the set-down po

• OT-2026-000007904
  Three cup vacuum gripper, three zone face, three outlet manifold, two stage ejector, pressure sensor per zone, vented after set-down, on a tool changer
  September 17, 2026 · Vacuum Grippers · 1,129 words

  A zoned vacuum gripping tool comprising one tool-change interface, three suction cups, one ejector, one manifold, three zone branches, three pressure sensors and one vent valve. When the suction cups reach the workpiece, the suction cups are evacuated by the ejector. After the workpiece has reached the set-down positio

• OT-2026-000007905
  Six cup vacuum gripper, six outlet manifold, common isolation valve, three stage ejector, manifold pressure sensor, vented after set-down, on a tool changer
  September 17, 2026 · Vacuum Grippers · 1,229 words

  A suction-cup vacuum gripping tool comprising one tool-change interface, six suction cups, one ejector, one isolation valve, one manifold, one pressure sensor, one contact detector and one vent valve. When the suction cups reach the workpiece, the suction cups are evacuated by the ejector. After the workpiece has reach

• OT-2026-000007906
  Three cup vacuum gripper, three zone face, six outlet manifold, single stage ejector, manifold pressure sensor, sustained blow-off before set-down, on a tool changer
  September 17, 2026 · Vacuum Grippers · 1,216 words

  A zoned vacuum gripping tool comprising one tool-change interface, three suction cups, one ejector, one manifold, three zone branches, one pressure sensor and one blow-off valve. When the suction cups reach the workpiece, the suction cups are evacuated by the ejector. Before the workpiece reaches the set-down position,

• OT-2026-000007907
  Six pad foam vacuum gripper, six outlet manifold, common isolation valve, plant vacuum fed, manifold pressure sensor, sustained blow-off after set-down, on a tool changer
  September 17, 2026 · Vacuum Grippers · 1,294 words

  A foam-pad vacuum gripping tool comprising one tool-change interface, six foam pads, one plant vacuum connection, one isolation valve, one manifold, one pressure sensor, one contact detector and one blow-off valve. When the foam pads reach the workpiece, the foam pads are evacuated by the plant vacuum connection. After

• OT-2026-000007908
  Six pad foam vacuum gripper, six outlet manifold, common isolation valve, pump fed, vented after set-down, on a tool changer
  September 17, 2026 · Vacuum Grippers · 1,093 words

  A foam-pad vacuum gripping tool comprising one tool-change interface, six foam pads, one vacuum pump, one isolation valve, one manifold, one contact detector and one vent valve. When the foam pads reach the workpiece, the foam pads are evacuated by the vacuum pump. After the workpiece has reached the set-down position,

• OT-2026-000007909
  Four bellows cup vacuum gripper, four zone face, six outlet manifold, two stage ejector, vented before set-down, on a tool changer
  September 17, 2026 · Vacuum Grippers · 1,109 words

  A zoned vacuum gripping tool comprising one tool-change interface, four bellows cups, one ejector, one manifold, four zone branches, one contact detector and one vent valve. When the bellows cups reach the workpiece, the bellows cups are evacuated by the ejector. Before the workpiece reaches the set-down position, the

• OT-2026-000007910
  Foam pad vacuum gripper, two zone face, common isolation valve, three stage ejector, vented before set-down, on a tool changer
  September 17, 2026 · Vacuum Grippers · 1,200 words

  A zoned vacuum gripping tool comprising one tool-change interface, one foam pad, one ejector, one isolation valve, two zone branches, one contact detector and one vent valve. When the foam pad reaches the workpiece, the foam pad is evacuated by the ejector. Before the workpiece reaches the set-down position, the vacuum

• OT-2026-000007911
  Three cup vacuum gripper, three zone face, per zone isolation, plant vacuum fed, supply line pressure sensor, vented after set-down, on a tool changer
  September 17, 2026 · Vacuum Grippers · 1,356 words

  A zoned vacuum gripping tool comprising one tool-change interface, three suction cups, one plant vacuum connection, three isolation valves, three zone branches, one pressure sensor, one contact detector and one vent valve. When the suction cups reach the workpiece, the suction cups are evacuated by the plant vacuum con

• OT-2026-000007912
  Four cup vacuum gripper, four outlet manifold, common isolation valve, two stage ejector, manifold pressure sensor, vented before set-down, on a tool changer
  September 17, 2026 · Vacuum Grippers · 1,251 words

  A suction-cup vacuum gripping tool comprising one tool-change interface, four suction cups, one ejector, one isolation valve, one manifold, one pressure sensor, one contact detector and one vent valve. When the suction cups reach the workpiece, the suction cups are evacuated by the ejector. Before the workpiece reaches

• OT-2026-000007913
  Three cup vacuum gripper, three zone face, common isolation valve, plant vacuum fed, vented before set-down
  September 17, 2026 · Vacuum Grippers · 1,034 words

  A zoned vacuum gripping tool comprising one mounting flange, three suction cups, one plant vacuum connection, one isolation valve, three zone branches, one contact detector and one vent valve. When the suction cups reach the workpiece, the suction cups are evacuated by the plant vacuum connection. Before the workpiece

• OT-2026-000007914
  Foam pad vacuum gripper, common isolation valve, pump fed, supply line pressure sensor, vented before set-down
  September 17, 2026 · Vacuum Grippers · 1,063 words

  A foam-pad vacuum gripping tool comprising one mounting flange, one foam pad, one vacuum pump, one isolation valve, one pressure sensor and one vent valve. When the foam pad reaches the workpiece, the foam pad is evacuated by the vacuum pump. Before the workpiece reaches the set-down position, the vacuum circuit is ven

• OT-2026-000007915
  Six cup vacuum gripper, six outlet manifold, common isolation valve, three stage ejector, supply line pressure sensor, pulsed blow-off after set-down
  September 17, 2026 · Vacuum Grippers · 1,218 words

  A suction-cup vacuum gripping tool comprising one mounting flange, six suction cups, one ejector, one isolation valve, one manifold, one pressure sensor, one contact detector and one blow-off valve. When the suction cups reach the workpiece, the suction cups are evacuated by the ejector. After the workpiece has reached

• OT-2026-000007916
  Three cup vacuum gripper, three outlet manifold, single stage ejector, supply line pressure sensor, vented before set-down, on a tool changer
  September 17, 2026 · Vacuum Grippers · 1,142 words

  A suction-cup vacuum gripping tool comprising one tool-change interface, three suction cups, one ejector, one manifold, one pressure sensor, one contact detector and one vent valve. When the suction cups reach the workpiece, the suction cups are evacuated by the ejector. Before the workpiece reaches the set-down positi

• OT-2026-000007917
  Foam pad vacuum gripper, two stage ejector, supply line pressure sensor, sustained blow-off before set-down, on a tool changer
  September 17, 2026 · Vacuum Grippers · 1,180 words

  A foam-pad vacuum gripping tool comprising one tool-change interface, one foam pad, one ejector, one pressure sensor, one contact detector and one blow-off valve. When the foam pad reaches the workpiece, the foam pad is evacuated by the ejector. Before the workpiece reaches the set-down position, the workpiece is blown

• OT-2026-000007918
  Four cup vacuum gripper, four zone face, common isolation valve, two stage ejector, sustained blow-off after set-down, on a tool changer
  September 17, 2026 · Vacuum Grippers · 1,139 words

  A zoned vacuum gripping tool comprising one tool-change interface, four suction cups, one ejector, one isolation valve, four zone branches, one contact detector and one blow-off valve. When the suction cups reach the workpiece, the suction cups are evacuated by the ejector. After the workpiece has reached the set-down

• OT-2026-000007919
  Foam pad vacuum gripper, four zone face, common isolation valve, pump fed, vented after set-down, on a tool changer
  September 17, 2026 · Vacuum Grippers · 1,133 words

  A zoned vacuum gripping tool comprising one tool-change interface, one foam pad, one vacuum pump, one isolation valve, four zone branches, one contact detector and one vent valve. When the foam pad reaches the workpiece, the foam pad is evacuated by the vacuum pump. After the workpiece has reached the set-down position

• OT-2026-000007920
  Four bellows cup vacuum gripper, four outlet manifold, three stage ejector, sustained blow-off before set-down
  September 17, 2026 · Vacuum Grippers · 966 words

  A bellows-cup vacuum gripping tool comprising one mounting flange, four bellows cups, one ejector, one manifold, one contact detector and one blow-off valve. When the bellows cups reach the workpiece, the bellows cups are evacuated by the ejector. Before the workpiece reaches the set-down position, the workpiece is blo

• OT-2026-000007921
  Three cup vacuum gripper, three zone face, four outlet manifold, pump fed, manifold pressure sensor, pulsed blow-off before set-down, on a tool changer
  September 17, 2026 · Vacuum Grippers · 1,341 words

  A zoned vacuum gripping tool comprising one tool-change interface, three suction cups, one vacuum pump, one manifold, three zone branches, one pressure sensor, one contact detector and one blow-off valve. When the suction cups reach the workpiece, the suction cups are evacuated by the vacuum pump. Before the workpiece

• OT-2026-000007922
  Three bellows cup vacuum gripper, three outlet manifold, common isolation valve, three stage ejector, manifold pressure sensor, pulsed blow-off before set-down, on a tool changer
  September 17, 2026 · Vacuum Grippers · 1,378 words

  A bellows-cup vacuum gripping tool comprising one tool-change interface, three bellows cups, one ejector, one isolation valve, one manifold, one pressure sensor, one contact detector and one blow-off valve. When the bellows cups reach the workpiece, the bellows cups are evacuated by the ejector. Before the workpiece re

• OT-2026-000007923
  Three cup vacuum gripper, three zone face, four outlet manifold, pump fed, sustained blow-off after set-down, on a tool changer
  September 17, 2026 · Vacuum Grippers · 1,055 words

  A zoned vacuum gripping tool comprising one tool-change interface, three suction cups, one vacuum pump, one manifold, three zone branches, one contact detector and one blow-off valve. When the suction cups reach the workpiece, the suction cups are evacuated by the vacuum pump. After the workpiece has reached the set-do

• OT-2026-000007924
  Four pad foam vacuum gripper, four outlet manifold, common isolation valve, three stage ejector, manifold pressure sensor, vented before set-down, on a tool changer
  September 17, 2026 · Vacuum Grippers · 1,369 words

  A foam-pad vacuum gripping tool comprising one tool-change interface, four foam pads, one ejector, one isolation valve, one manifold, one pressure sensor, one contact detector and one vent valve. When the foam pads reach the workpiece, the foam pads are evacuated by the ejector. Before the workpiece reaches the set-dow

• OT-2026-000007925
  Two cup vacuum gripper, two zone face, two outlet manifold, plant vacuum fed, sustained blow-off before set-down, on a tool changer
  September 17, 2026 · Vacuum Grippers · 1,030 words

  A zoned vacuum gripping tool comprising one tool-change interface, two suction cups, one plant vacuum connection, one manifold, two zone branches and one blow-off valve. When the suction cups reach the workpiece, the suction cups are evacuated by the plant vacuum connection. Before the workpiece reaches the set-down po

• OT-2026-000007926
  Two bellows cup vacuum gripper, two zone face, three stage ejector, pressure sensor per zone, vented before set-down, on a tool changer
  September 17, 2026 · Vacuum Grippers · 1,259 words

  A zoned vacuum gripping tool comprising one tool-change interface, two bellows cups, one ejector, two zone branches, two pressure sensors, one contact detector and one vent valve. When the bellows cups reach the workpiece, the bellows cups are evacuated by the ejector. Before the workpiece reaches the set-down position

• OT-2026-000007927
  Foam pad vacuum gripper, three zone face, three outlet manifold, three stage ejector, vented after set-down
  September 17, 2026 · Vacuum Grippers · 967 words

  A zoned vacuum gripping tool comprising one mounting flange, one foam pad, one ejector, one manifold, three zone branches, one contact detector and one vent valve. When the foam pad reaches the workpiece, the foam pad is evacuated by the ejector. After the workpiece has reached the set-down position, the vacuum circuit

• OT-2026-000007928
  Foam pad vacuum gripper, common isolation valve, plant vacuum fed, supply line pressure sensor, vented before set-down, on a tool changer
  September 17, 2026 · Vacuum Grippers · 1,264 words

  A foam-pad vacuum gripping tool comprising one tool-change interface, one foam pad, one plant vacuum connection, one isolation valve, one pressure sensor, one contact detector and one vent valve. When the foam pad reaches the workpiece, the foam pad is evacuated by the plant vacuum connection. Before the workpiece reac

• OT-2026-000007929
  Two bellows cup vacuum gripper, two outlet manifold, common isolation valve, pump fed, sustained blow-off before set-down
  September 17, 2026 · Vacuum Grippers · 1,096 words

  A bellows-cup vacuum gripping tool comprising one mounting flange, two bellows cups, one vacuum pump, one isolation valve, one manifold, one contact detector and one blow-off valve. When the bellows cups reach the workpiece, the bellows cups are evacuated by the vacuum pump. Before the workpiece reaches the set-down po

• OT-2026-000007930
  Two cup vacuum gripper, two zone face, two outlet manifold, pump fed, pressure sensor per zone, pulsed blow-off before set-down, on a tool changer
  September 17, 2026 · Vacuum Grippers · 1,359 words

  A zoned vacuum gripping tool comprising one tool-change interface, two suction cups, one vacuum pump, one manifold, two zone branches, two pressure sensors, one contact detector and one blow-off valve. When the suction cups reach the workpiece, the suction cups are evacuated by the vacuum pump. Before the workpiece rea

• OT-2026-000007931
  Foam pad vacuum gripper, three zone face, six outlet manifold, plant vacuum fed, manifold pressure sensor, pulsed blow-off before set-down, on a tool changer
  September 17, 2026 · Vacuum Grippers · 1,368 words

  A zoned vacuum gripping tool comprising one tool-change interface, one foam pad, one plant vacuum connection, one manifold, three zone branches, one pressure sensor, one contact detector and one blow-off valve. When the foam pad reaches the workpiece, the foam pad is evacuated by the plant vacuum connection. Before the

• OT-2026-000007932
  Two bellows cup vacuum gripper, two outlet manifold, three stage ejector, supply line pressure sensor, pulsed blow-off before set-down, on a tool changer
  September 17, 2026 · Vacuum Grippers · 1,108 words

  A bellows-cup vacuum gripping tool comprising one tool-change interface, two bellows cups, one ejector, one manifold, one pressure sensor and one blow-off valve. When the bellows cups reach the workpiece, the bellows cups are evacuated by the ejector. Before the workpiece reaches the set-down position, the workpiece is

• OT-2026-000007933
  Four cup vacuum gripper, four zone face, four outlet manifold, single stage ejector, manifold pressure sensor, vented after set-down, on a tool changer
  September 17, 2026 · Vacuum Grippers · 1,162 words

  A zoned vacuum gripping tool comprising one tool-change interface, four suction cups, one ejector, one manifold, four zone branches, one pressure sensor, one contact detector and one vent valve. When the suction cups reach the workpiece, the suction cups are evacuated by the ejector. After the workpiece has reached the

• OT-2026-000007934
  Three pad foam vacuum gripper, three outlet manifold, common isolation valve, pump fed, supply line pressure sensor, vented before set-down, on a tool changer
  September 17, 2026 · Vacuum Grippers · 1,317 words

  A foam-pad vacuum gripping tool comprising one tool-change interface, three foam pads, one vacuum pump, one isolation valve, one manifold, one pressure sensor, one contact detector and one vent valve. When the foam pads reach the workpiece, the foam pads are evacuated by the vacuum pump. Before the workpiece reaches th

• OT-2026-000007935
  Two bellows cup vacuum gripper, two zone face, two outlet manifold, single stage ejector, pressure sensor per zone, vented before set-down
  September 17, 2026 · Vacuum Grippers · 1,103 words

  A zoned vacuum gripping tool comprising one mounting flange, two bellows cups, one ejector, one manifold, two zone branches, two pressure sensors and one vent valve. When the bellows cups reach the workpiece, the bellows cups are evacuated by the ejector. Before the workpiece reaches the set-down position, the vacuum c

• OT-2026-000007936
  Two cup vacuum gripper, two outlet manifold, common isolation valve, three stage ejector, manifold pressure sensor, vented before set-down, on a tool changer
  September 17, 2026 · Vacuum Grippers · 1,318 words

  A suction-cup vacuum gripping tool comprising one tool-change interface, two suction cups, one ejector, one isolation valve, one manifold, one pressure sensor, one contact detector and one vent valve. When the suction cups reach the workpiece, the suction cups are evacuated by the ejector. Before the workpiece reaches

• OT-2026-000007937
  Six bellows cup vacuum gripper, six outlet manifold, three stage ejector, supply line pressure sensor, vented after set-down
  September 17, 2026 · Vacuum Grippers · 1,017 words

  A bellows-cup vacuum gripping tool comprising one mounting flange, six bellows cups, one ejector, one manifold, one pressure sensor, one contact detector and one vent valve. When the bellows cups reach the workpiece, the bellows cups are evacuated by the ejector. After the workpiece has reached the set-down position, t

• OT-2026-000007938
  Three bellows cup vacuum gripper, three zone face, three outlet manifold, single stage ejector, pressure sensor per zone, pulsed blow-off before set-down
  September 17, 2026 · Vacuum Grippers · 1,296 words

  A zoned vacuum gripping tool comprising one mounting flange, three bellows cups, one ejector, one manifold, three zone branches, three pressure sensors, one contact detector and one blow-off valve. When the bellows cups reach the workpiece, the bellows cups are evacuated by the ejector. Before the workpiece reaches the

• OT-2026-000007939
  Single bellows cup vacuum gripper, pump fed, supply line pressure sensor, pulsed blow-off before set-down
  September 17, 2026 · Vacuum Grippers · 1,060 words

  A bellows-cup vacuum gripping tool comprising one mounting flange, one bellows cup, one vacuum pump, one pressure sensor, one contact detector and one blow-off valve. When the bellows cup reaches the workpiece, the bellows cup is evacuated by the vacuum pump. Before the workpiece reaches the set-down position, the work