Position and Presence Sensing

Position and Presence Sensing within Sensors, Controls & Machine Vision.

Category CAT-000000245

Subcategories

Publications

• OT-2026-000059751
  Foam pad vacuum gripper, four zone face, six outlet manifold, single stage ejector, supply line pressure sensor, pulsed blow-off before set-down, on a tool changer
  September 17, 2026 · Vacuum Grippers · 1,357 words

  A zoned vacuum gripping tool comprising one tool-change interface, one foam pad, one ejector, one manifold, four 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 ejector. Before the workpiece reaches the set-down p

• OT-2026-000059752
  Single bellows cup vacuum gripper, pump fed, sustained blow-off after set-down, on a tool changer
  September 17, 2026 · Vacuum Grippers · 843 words

  A bellows-cup vacuum gripping tool comprising one tool-change interface, one bellows cup, one vacuum pump, one contact detector and one blow-off valve. When the bellows cup reaches the workpiece, the bellows cup is evacuated by the vacuum pump. After the workpiece has reached the set-down position, the workpiece is blo

• OT-2026-000059754
  Four pad foam vacuum gripper, four outlet manifold, two stage ejector, manifold pressure sensor, vented before set-down, on a tool changer
  September 17, 2026 · Vacuum Grippers · 1,169 words

  A foam-pad vacuum gripping tool comprising one tool-change interface, four foam pads, one ejector, 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-down position, the vacuu

• OT-2026-000059755
  Foam pad vacuum gripper, four zone face, six outlet manifold, single stage ejector, supply line pressure sensor, pulsed blow-off before set-down, on a tool changer
  September 17, 2026 · Vacuum Grippers · 1,322 words

  A zoned vacuum gripping tool comprising one tool-change interface, one foam pad, one ejector, one manifold, four 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 ejector. Before the workpiece reaches the set-down p

• OT-2026-000059756
  Single bellows cup vacuum gripper, common isolation valve, single stage ejector, sustained blow-off after set-down
  September 17, 2026 · Vacuum Grippers · 937 words

  A bellows-cup vacuum gripping tool comprising one mounting flange, one bellows cup, one ejector, one isolation valve, one contact detector and one blow-off valve. When the bellows cup reaches the workpiece, the bellows cup is evacuated by the ejector. After the workpiece has reached the set-down position, the workpiece

• OT-2026-000059758
  Four pad foam vacuum gripper, four outlet manifold, two stage ejector, manifold pressure sensor, vented before set-down, on a tool changer
  September 17, 2026 · Vacuum Grippers · 1,134 words

  A foam-pad vacuum gripping tool comprising one tool-change interface, four foam pads, one ejector, 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-down position, the vacuu

• OT-2026-000059759
  Four cup vacuum gripper, four zone face, six outlet manifold, single stage ejector, supply line pressure sensor, pulsed blow-off before set-down
  September 17, 2026 · Vacuum Grippers · 1,214 words

  A zoned vacuum gripping tool comprising one mounting flange, four suction cups, one ejector, one manifold, four 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 ejector. Before the workpiece reaches the set-

• OT-2026-000059760
  Single bellows cup vacuum gripper, common isolation valve, single stage ejector, sustained blow-off after set-down, on a tool changer
  September 17, 2026 · Vacuum Grippers · 1,008 words

  A bellows-cup vacuum gripping tool comprising one tool-change interface, one bellows cup, one ejector, one isolation valve, one contact detector and one blow-off valve. When the bellows cup reaches the workpiece, the bellows cup is evacuated by the ejector. After the workpiece has reached the set-down position, the wor

• OT-2026-000059762
  Four pad foam vacuum gripper, four outlet manifold, two stage ejector, manifold pressure sensor, vented before set-down, on a tool changer
  September 17, 2026 · Vacuum Grippers · 1,154 words

  A foam-pad vacuum gripping tool comprising one tool-change interface, four foam pads, one ejector, 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-down position, the vacuu

• OT-2026-000059763
  Four cup vacuum gripper, four zone face, six outlet manifold, single stage ejector, supply line pressure sensor, pulsed blow-off before set-down, on a tool changer
  September 17, 2026 · Vacuum Grippers · 1,320 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 blow-off valve. When the suction cups reach the workpiece, the suction cups are evacuated by the ejector. Before the workpiece reaches th

• OT-2026-000059764
  Single bellows cup vacuum gripper, common isolation valve, single stage ejector, sustained blow-off after set-down
  September 17, 2026 · Vacuum Grippers · 937 words

  A bellows-cup vacuum gripping tool comprising one mounting flange, one bellows cup, one ejector, one isolation valve, one contact detector and one blow-off valve. When the bellows cup reaches the workpiece, the bellows cup is evacuated by the ejector. After the workpiece has reached the set-down position, the workpiece

• OT-2026-000059766
  Four pad foam vacuum gripper, four outlet manifold, two stage ejector, manifold pressure sensor, vented before set-down, on a tool changer
  September 17, 2026 · Vacuum Grippers · 1,119 words

  A foam-pad vacuum gripping tool comprising one tool-change interface, four foam pads, one ejector, 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-down position, the vacuu

• OT-2026-000059767
  Four cup vacuum gripper, four zone face, six outlet manifold, single stage ejector, supply line pressure sensor, pulsed blow-off before set-down, on a tool changer
  September 17, 2026 · Vacuum Grippers · 1,285 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 blow-off valve. When the suction cups reach the workpiece, the suction cups are evacuated by the ejector. Before the workpiece reaches th

• OT-2026-000059768
  Single bellows cup vacuum gripper, common isolation valve, single stage ejector, sustained blow-off after set-down, on a tool changer
  September 17, 2026 · Vacuum Grippers · 1,042 words

  A bellows-cup vacuum gripping tool comprising one tool-change interface, one bellows cup, one ejector, one isolation valve, one contact detector and one blow-off valve. When the bellows cup reaches the workpiece, the bellows cup is evacuated by the ejector. After the workpiece has reached the set-down position, the wor

• OT-2026-000059770
  Four pad foam vacuum gripper, four outlet manifold, three stage ejector, manifold pressure sensor, vented before set-down
  September 17, 2026 · Vacuum Grippers · 1,063 words

  A foam-pad vacuum gripping tool comprising one mounting flange, four foam pads, one ejector, 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-down position, the vacuum circ

• OT-2026-000059771
  Four cup vacuum gripper, four zone face, six outlet manifold, single stage ejector, supply line pressure sensor, pulsed blow-off before set-down
  September 17, 2026 · Vacuum Grippers · 1,214 words

  A zoned vacuum gripping tool comprising one mounting flange, four suction cups, one ejector, one manifold, four 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 ejector. Before the workpiece reaches the set-

• OT-2026-000059772
  Single bellows cup vacuum gripper, common isolation valve, single stage ejector, sustained blow-off after set-down, on a tool changer
  September 17, 2026 · Vacuum Grippers · 1,008 words

  A bellows-cup vacuum gripping tool comprising one tool-change interface, one bellows cup, one ejector, one isolation valve, one contact detector and one blow-off valve. When the bellows cup reaches the workpiece, the bellows cup is evacuated by the ejector. After the workpiece has reached the set-down position, the wor

• OT-2026-000059774
  Four pad foam vacuum gripper, four outlet manifold, three stage ejector, manifold pressure sensor, vented before set-down, on a tool changer
  September 17, 2026 · Vacuum Grippers · 1,169 words

  A foam-pad vacuum gripping tool comprising one tool-change interface, four foam pads, one ejector, 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-down position, the vacuu

• OT-2026-000059775
  Four cup vacuum gripper, four zone face, six outlet manifold, single stage ejector, supply line pressure sensor, pulsed blow-off before set-down, on a tool changer
  September 17, 2026 · Vacuum Grippers · 1,320 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 blow-off valve. When the suction cups reach the workpiece, the suction cups are evacuated by the ejector. Before the workpiece reaches th

• OT-2026-000059776
  Single bellows cup vacuum gripper, common isolation valve, single stage ejector, sustained blow-off after set-down
  September 17, 2026 · Vacuum Grippers · 937 words

  A bellows-cup vacuum gripping tool comprising one mounting flange, one bellows cup, one ejector, one isolation valve, one contact detector and one blow-off valve. When the bellows cup reaches the workpiece, the bellows cup is evacuated by the ejector. After the workpiece has reached the set-down position, the workpiece

• OT-2026-000059778
  Four pad foam vacuum gripper, four outlet manifold, three stage ejector, manifold pressure sensor, vented before set-down, on a tool changer
  September 17, 2026 · Vacuum Grippers · 1,134 words

  A foam-pad vacuum gripping tool comprising one tool-change interface, four foam pads, one ejector, 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-down position, the vacuu

• OT-2026-000059779
  Four cup vacuum gripper, four zone face, six outlet manifold, single stage ejector, supply line pressure sensor, pulsed blow-off before set-down, on a tool changer
  September 17, 2026 · Vacuum Grippers · 1,285 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 blow-off valve. When the suction cups reach the workpiece, the suction cups are evacuated by the ejector. Before the workpiece reaches th

• OT-2026-000059780
  Single bellows cup vacuum gripper, common isolation valve, single stage ejector, sustained blow-off after set-down, on a tool changer
  September 17, 2026 · Vacuum Grippers · 1,042 words

  A bellows-cup vacuum gripping tool comprising one tool-change interface, one bellows cup, one ejector, one isolation valve, one contact detector and one blow-off valve. When the bellows cup reaches the workpiece, the bellows cup is evacuated by the ejector. After the workpiece has reached the set-down position, the wor

• OT-2026-000059782
  Four pad foam vacuum gripper, four outlet manifold, three stage ejector, manifold pressure sensor, vented before set-down
  September 17, 2026 · Vacuum Grippers · 1,048 words

  A foam-pad vacuum gripping tool comprising one mounting flange, four foam pads, one ejector, 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-down position, the vacuum circ

• OT-2026-000059783
  Four bellows cup vacuum gripper, four zone face, six outlet manifold, two stage ejector, supply line pressure sensor, pulsed blow-off before set-down
  September 17, 2026 · Vacuum Grippers · 1,226 words

  A zoned vacuum gripping tool comprising one mounting flange, four bellows cups, one ejector, one manifold, four zone branches, 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-

• OT-2026-000059784
  Single bellows cup vacuum gripper, common isolation valve, single stage ejector, sustained blow-off after set-down, on a tool changer
  September 17, 2026 · Vacuum Grippers · 1,008 words

  A bellows-cup vacuum gripping tool comprising one tool-change interface, one bellows cup, one ejector, one isolation valve, one contact detector and one blow-off valve. When the bellows cup reaches the workpiece, the bellows cup is evacuated by the ejector. After the workpiece has reached the set-down position, the wor

• OT-2026-000059786
  Four pad foam vacuum gripper, four outlet manifold, three stage ejector, manifold pressure sensor, vented before set-down, on a tool changer
  September 17, 2026 · Vacuum Grippers · 1,154 words

  A foam-pad vacuum gripping tool comprising one tool-change interface, four foam pads, one ejector, 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-down position, the vacuu

• OT-2026-000059787
  Four bellows cup vacuum gripper, four zone face, six outlet manifold, two stage ejector, supply line pressure sensor, pulsed blow-off before set-down, on a tool changer
  September 17, 2026 · Vacuum Grippers · 1,332 words

  A zoned vacuum gripping tool comprising one tool-change interface, four bellows cups, one ejector, one manifold, four zone branches, 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 th

• OT-2026-000059788
  Single bellows cup vacuum gripper, common isolation valve, two stage ejector, sustained blow-off after set-down
  September 17, 2026 · Vacuum Grippers · 937 words

  A bellows-cup vacuum gripping tool comprising one mounting flange, one bellows cup, one ejector, one isolation valve, one contact detector and one blow-off valve. When the bellows cup reaches the workpiece, the bellows cup is evacuated by the ejector. After the workpiece has reached the set-down position, the workpiece

• OT-2026-000059790
  Four pad foam vacuum gripper, four outlet manifold, three stage ejector, manifold pressure sensor, vented before set-down, on a tool changer
  September 17, 2026 · Vacuum Grippers · 1,119 words

  A foam-pad vacuum gripping tool comprising one tool-change interface, four foam pads, one ejector, 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-down position, the vacuu

• OT-2026-000059791
  Four bellows cup vacuum gripper, four zone face, six outlet manifold, two stage ejector, supply line pressure sensor, pulsed blow-off before set-down, on a tool changer
  September 17, 2026 · Vacuum Grippers · 1,297 words

  A zoned vacuum gripping tool comprising one tool-change interface, four bellows cups, one ejector, one manifold, four zone branches, 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 th

• OT-2026-000059792
  Single bellows cup vacuum gripper, common isolation valve, two stage ejector, sustained blow-off after set-down, on a tool changer
  September 17, 2026 · Vacuum Grippers · 1,042 words

  A bellows-cup vacuum gripping tool comprising one tool-change interface, one bellows cup, one ejector, one isolation valve, one contact detector and one blow-off valve. When the bellows cup reaches the workpiece, the bellows cup is evacuated by the ejector. After the workpiece has reached the set-down position, the wor

• OT-2026-000059794
  Four pad foam vacuum gripper, four outlet manifold, plant vacuum fed, manifold pressure sensor, vented before set-down, on a tool changer
  September 17, 2026 · Vacuum Grippers · 1,153 words

  A foam-pad vacuum gripping tool comprising one tool-change interface, four foam pads, one plant vacuum connection, 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 plant vacuum connection. Before the workpiece reaches

• OT-2026-000059795
  Four bellows cup vacuum gripper, four zone face, six outlet manifold, two stage ejector, supply line pressure sensor, pulsed blow-off before set-down
  September 17, 2026 · Vacuum Grippers · 1,226 words

  A zoned vacuum gripping tool comprising one mounting flange, four bellows cups, one ejector, one manifold, four zone branches, 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-

• OT-2026-000059796
  Single bellows cup vacuum gripper, common isolation valve, pump fed, sustained blow-off after set-down, on a tool changer
  September 17, 2026 · Vacuum Grippers · 990 words

  A bellows-cup vacuum gripping tool comprising one tool-change interface, one bellows cup, one vacuum pump, one isolation valve, one contact detector and one blow-off valve. When the bellows cup reaches the workpiece, the bellows cup is evacuated by the vacuum pump. After the workpiece has reached the set-down position,

• OT-2026-000059798
  Six pad foam vacuum gripper, six outlet manifold, plant vacuum fed, manifold pressure sensor, vented before set-down, on a tool changer
  September 17, 2026 · Vacuum Grippers · 1,138 words

  A foam-pad vacuum gripping tool comprising one tool-change interface, six foam pads, one plant vacuum connection, 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 plant vacuum connection. Before the workpiece reaches t

• OT-2026-000059799
  Four cup vacuum gripper, four zone face, six outlet manifold, three stage ejector, supply line pressure sensor, pulsed blow-off before set-down
  September 17, 2026 · Vacuum Grippers · 1,214 words

  A zoned vacuum gripping tool comprising one mounting flange, four suction cups, one ejector, one manifold, four 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 ejector. Before the workpiece reaches the set-

• OT-2026-000059800
  Two bellows cup vacuum gripper, two outlet manifold, single stage ejector, sustained blow-off after set-down
  September 17, 2026 · Vacuum Grippers · 868 words

  A bellows-cup vacuum gripping tool comprising one mounting flange, two 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. After the workpiece has reached the set-down position, the workpiece is b

• OT-2026-000059802
  Six pad foam vacuum gripper, six outlet manifold, plant vacuum fed, manifold pressure sensor, vented before set-down, on a tool changer
  September 17, 2026 · Vacuum Grippers · 1,103 words

  A foam-pad vacuum gripping tool comprising one tool-change interface, six foam pads, one plant vacuum connection, 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 plant vacuum connection. Before the workpiece reaches t

• OT-2026-000059803
  Four cup vacuum gripper, four zone face, six outlet manifold, three stage ejector, supply line pressure sensor, pulsed blow-off before set-down, on a tool changer
  September 17, 2026 · Vacuum Grippers · 1,320 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 blow-off valve. When the suction cups reach the workpiece, the suction cups are evacuated by the ejector. Before the workpiece reaches th

• OT-2026-000059804
  Two bellows cup vacuum gripper, two outlet manifold, single stage ejector, sustained blow-off after set-down, on a tool changer
  September 17, 2026 · Vacuum Grippers · 974 words

  A bellows-cup vacuum gripping tool comprising one tool-change interface, two 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. After the workpiece has reached the set-down position, the workpiec

• OT-2026-000059806
  Six pad foam vacuum gripper, six outlet manifold, pump fed, manifold pressure sensor, vented before set-down
  September 17, 2026 · Vacuum Grippers · 1,046 words

  A foam-pad vacuum gripping tool comprising one mounting flange, six foam pads, one vacuum pump, 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 the set-down position, the vacu

• OT-2026-000059807
  Four cup vacuum gripper, four zone face, six outlet manifold, three stage ejector, supply line pressure sensor, pulsed blow-off before set-down, on a tool changer
  September 17, 2026 · Vacuum Grippers · 1,285 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 blow-off valve. When the suction cups reach the workpiece, the suction cups are evacuated by the ejector. Before the workpiece reaches th

• OT-2026-000059808
  Two bellows cup vacuum gripper, two outlet manifold, single stage ejector, sustained blow-off after 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 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. After the workpiece has reached the set-down position, the workpiec

• OT-2026-000059810
  Six pad foam vacuum gripper, six outlet manifold, pump fed, manifold pressure sensor, vented before set-down, on a tool changer
  September 17, 2026 · Vacuum Grippers · 1,152 words

  A foam-pad vacuum gripping tool comprising one tool-change interface, six foam pads, one vacuum pump, 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 the set-down position, th

• OT-2026-000059811
  Four cup vacuum gripper, four zone face, six outlet manifold, three stage ejector, supply line pressure sensor, pulsed blow-off before set-down
  September 17, 2026 · Vacuum Grippers · 1,214 words

  A zoned vacuum gripping tool comprising one mounting flange, four suction cups, one ejector, one manifold, four 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 ejector. Before the workpiece reaches the set-

• OT-2026-000059812
  Two bellows cup vacuum gripper, two outlet manifold, single stage ejector, sustained blow-off after set-down
  September 17, 2026 · Vacuum Grippers · 868 words

  A bellows-cup vacuum gripping tool comprising one mounting flange, two 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. After the workpiece has reached the set-down position, the workpiece is b

• OT-2026-000059814
  Six pad foam vacuum gripper, six outlet manifold, pump fed, manifold pressure sensor, vented before set-down, on a tool changer
  September 17, 2026 · Vacuum Grippers · 1,117 words

  A foam-pad vacuum gripping tool comprising one tool-change interface, six foam pads, one vacuum pump, 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 the set-down position, th

• OT-2026-000059815
  Four cup vacuum gripper, four zone face, six outlet manifold, three stage ejector, supply line pressure sensor, pulsed blow-off before set-down, on a tool changer
  September 17, 2026 · Vacuum Grippers · 1,320 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 blow-off valve. When the suction cups reach the workpiece, the suction cups are evacuated by the ejector. Before the workpiece reaches th

• OT-2026-000059816
  Two bellows cup vacuum gripper, two outlet manifold, single stage ejector, sustained blow-off after set-down, on a tool changer
  September 17, 2026 · Vacuum Grippers · 974 words

  A bellows-cup vacuum gripping tool comprising one tool-change interface, two 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. After the workpiece has reached the set-down position, the workpiec