Valves and Manifolds

Valves and Manifolds within Fluid Power.

Category CAT-000000230

Publications

• OT-2026-000050944
  Three bellows cup vacuum gripper, three outlet manifold, common isolation valve, pump fed, supply line pressure sensor, pulsed blow-off after set-down, on a tool changer
  September 17, 2026 · Vacuum Grippers · 1,275 words

  A bellows-cup vacuum gripping tool comprising one tool-change interface, three bellows cups, one vacuum pump, 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 vacuum pump. After the workp

• OT-2026-000050945
  Four cup vacuum gripper, four outlet manifold, common isolation valve, two stage ejector, vented before set-down, on a tool changer
  September 17, 2026 · Vacuum Grippers · 982 words

  A suction-cup vacuum gripping tool comprising one tool-change interface, four suction cups, one ejector, one isolation valve, one manifold 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 position, the vacuum circuit

• OT-2026-000050946
  Three pad foam vacuum gripper, three outlet manifold, two stage ejector, vented before set-down
  September 17, 2026 · Vacuum Grippers · 787 words

  A foam-pad vacuum gripping tool comprising one mounting flange, three foam pads, one ejector, one manifold 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 circuit is vented by the vent valve while the

• OT-2026-000050947
  Four cup vacuum gripper, four zone face, four outlet manifold, two stage ejector, pressure sensor per zone, pulsed blow-off before set-down, on a tool changer
  September 17, 2026 · Vacuum Grippers · 1,252 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 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-2026-000050948
  Three bellows cup vacuum gripper, three outlet manifold, common isolation valve, pump fed, supply line pressure sensor, pulsed blow-off after set-down, on a tool changer
  September 17, 2026 · Vacuum Grippers · 1,241 words

  A bellows-cup vacuum gripping tool comprising one tool-change interface, three bellows cups, one vacuum pump, 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 vacuum pump. After the workp

• OT-2026-000050949
  Four cup vacuum gripper, four outlet manifold, common isolation valve, two stage ejector, vented before set-down, on a tool changer
  September 17, 2026 · Vacuum Grippers · 948 words

  A suction-cup vacuum gripping tool comprising one tool-change interface, four suction cups, one ejector, one isolation valve, one manifold 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 position, the vacuum circuit

• OT-2026-000050950
  Three pad foam vacuum gripper, three outlet manifold, two stage ejector, vented before set-down, on a tool changer
  September 17, 2026 · Vacuum Grippers · 893 words

  A foam-pad vacuum gripping tool comprising one tool-change interface, three foam pads, one ejector, one manifold 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 circuit is vented by the vent valve whil

• OT-2026-000050951
  Four cup vacuum gripper, four zone face, four outlet manifold, two stage ejector, pressure sensor per zone, pulsed blow-off before set-down, on a tool changer
  September 17, 2026 · Vacuum Grippers · 1,217 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 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-2026-000050952
  Four bellows cup vacuum gripper, four outlet manifold, common isolation valve, single stage ejector, supply line pressure sensor, pulsed blow-off after set-down
  September 17, 2026 · Vacuum Grippers · 1,188 words

  A bellows-cup vacuum gripping tool comprising one mounting flange, four 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. After the workpiece has reache

• OT-2026-000050953
  Four cup vacuum gripper, four outlet manifold, common isolation valve, two stage ejector, vented before set-down
  September 17, 2026 · Vacuum Grippers · 877 words

  A suction-cup vacuum gripping tool comprising one mounting flange, four suction cups, one ejector, one isolation valve, one manifold 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 position, the vacuum circuit is ven

• OT-2026-000050954
  Three pad foam vacuum gripper, three outlet manifold, two stage ejector, vented before set-down, on a tool changer
  September 17, 2026 · Vacuum Grippers · 858 words

  A foam-pad vacuum gripping tool comprising one tool-change interface, three foam pads, one ejector, one manifold 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 circuit is vented by the vent valve whil

• OT-2026-000050955
  Four cup vacuum gripper, four zone face, four outlet manifold, two stage ejector, pressure sensor per zone, pulsed blow-off before set-down
  September 17, 2026 · Vacuum Grippers · 1,146 words

  A zoned vacuum gripping tool comprising one mounting flange, four suction cups, one ejector, one manifold, four zone branches, four 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 position, the w

• OT-2026-000050956
  Four bellows cup vacuum gripper, four outlet manifold, common isolation valve, single stage ejector, supply line pressure sensor, pulsed blow-off after set-down, on a tool changer
  September 17, 2026 · Vacuum Grippers · 1,293 words

  A bellows-cup vacuum gripping tool comprising one tool-change interface, four 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. After the workpiece has

• OT-2026-000050957
  Four cup vacuum gripper, four outlet manifold, common isolation valve, two stage ejector, vented before set-down, on a tool changer
  September 17, 2026 · Vacuum Grippers · 982 words

  A suction-cup vacuum gripping tool comprising one tool-change interface, four suction cups, one ejector, one isolation valve, one manifold 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 position, the vacuum circuit

• OT-2026-000050958
  Three pad foam vacuum gripper, three outlet manifold, two stage ejector, vented before set-down
  September 17, 2026 · Vacuum Grippers · 772 words

  A foam-pad vacuum gripping tool comprising one mounting flange, three foam pads, one ejector, one manifold 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 circuit is vented by the vent valve while the

• OT-2026-000050959
  Four cup vacuum gripper, four zone face, four outlet manifold, two stage ejector, pressure sensor per zone, pulsed blow-off before set-down, on a tool changer
  September 17, 2026 · Vacuum Grippers · 1,252 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 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-2026-000050960
  Four bellows cup vacuum gripper, four outlet manifold, common isolation valve, single stage ejector, supply line pressure sensor, pulsed blow-off after set-down, on a tool changer
  September 17, 2026 · Vacuum Grippers · 1,259 words

  A bellows-cup vacuum gripping tool comprising one tool-change interface, four 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. After the workpiece has

• OT-2026-000050961
  Four cup vacuum gripper, four outlet manifold, common isolation valve, two stage ejector, vented before set-down, on a tool changer
  September 17, 2026 · Vacuum Grippers · 948 words

  A suction-cup vacuum gripping tool comprising one tool-change interface, four suction cups, one ejector, one isolation valve, one manifold 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 position, the vacuum circuit

• OT-2026-000050962
  Three pad foam vacuum gripper, three outlet manifold, two stage ejector, vented before set-down, on a tool changer
  September 17, 2026 · Vacuum Grippers · 878 words

  A foam-pad vacuum gripping tool comprising one tool-change interface, three foam pads, one ejector, one manifold 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 circuit is vented by the vent valve whil

• OT-2026-000050963
  Four cup vacuum gripper, four zone face, four outlet manifold, two stage ejector, pressure sensor per zone, pulsed blow-off before set-down, on a tool changer
  September 17, 2026 · Vacuum Grippers · 1,217 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 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-2026-000050964
  Four bellows cup vacuum gripper, four outlet manifold, common isolation valve, single stage ejector, supply line pressure sensor, pulsed blow-off after set-down
  September 17, 2026 · Vacuum Grippers · 1,188 words

  A bellows-cup vacuum gripping tool comprising one mounting flange, four 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. After the workpiece has reache

• OT-2026-000050965
  Four cup vacuum gripper, four outlet manifold, common isolation valve, three stage ejector, vented before set-down
  September 17, 2026 · Vacuum Grippers · 877 words

  A suction-cup vacuum gripping tool comprising one mounting flange, four suction cups, one ejector, one isolation valve, one manifold 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 position, the vacuum circuit is ven

• OT-2026-000050966
  Three pad foam vacuum gripper, three outlet manifold, two stage ejector, vented before set-down, on a tool changer
  September 17, 2026 · Vacuum Grippers · 843 words

  A foam-pad vacuum gripping tool comprising one tool-change interface, three foam pads, one ejector, one manifold 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 circuit is vented by the vent valve whil

• OT-2026-000050967
  Four bellows cup vacuum gripper, four zone face, four outlet manifold, three stage ejector, pressure sensor per zone, pulsed blow-off before set-down
  September 17, 2026 · Vacuum Grippers · 1,158 words

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

• OT-2026-000050968
  Four bellows cup vacuum gripper, four outlet manifold, common isolation valve, single stage ejector, supply line pressure sensor, pulsed blow-off after set-down, on a tool changer
  September 17, 2026 · Vacuum Grippers · 1,293 words

  A bellows-cup vacuum gripping tool comprising one tool-change interface, four 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. After the workpiece has

• OT-2026-000050969
  Four cup vacuum gripper, four outlet manifold, common isolation valve, three stage ejector, vented before set-down, on a tool changer
  September 17, 2026 · Vacuum Grippers · 982 words

  A suction-cup vacuum gripping tool comprising one tool-change interface, four suction cups, one ejector, one isolation valve, one manifold 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 position, the vacuum circuit

• OT-2026-000050970
  Three pad foam vacuum gripper, three outlet manifold, three stage ejector, vented before set-down
  September 17, 2026 · Vacuum Grippers · 787 words

  A foam-pad vacuum gripping tool comprising one mounting flange, three foam pads, one ejector, one manifold 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 circuit is vented by the vent valve while the

• OT-2026-000050971
  Four bellows cup vacuum gripper, four zone face, four outlet manifold, three stage ejector, pressure sensor per zone, pulsed blow-off before set-down, on a tool changer
  September 17, 2026 · Vacuum Grippers · 1,264 words

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

• OT-2026-000050972
  Four bellows cup vacuum gripper, four outlet manifold, common isolation valve, single stage ejector, supply line pressure sensor, pulsed blow-off after set-down, on a tool changer
  September 17, 2026 · Vacuum Grippers · 1,259 words

  A bellows-cup vacuum gripping tool comprising one tool-change interface, four 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. After the workpiece has

• OT-2026-000050973
  Four cup vacuum gripper, four outlet manifold, common isolation valve, three stage ejector, vented before set-down, on a tool changer
  September 17, 2026 · Vacuum Grippers · 948 words

  A suction-cup vacuum gripping tool comprising one tool-change interface, four suction cups, one ejector, one isolation valve, one manifold 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 position, the vacuum circuit

• OT-2026-000050974
  Three pad foam vacuum gripper, three outlet manifold, three stage ejector, vented before set-down, on a tool changer
  September 17, 2026 · Vacuum Grippers · 858 words

  A foam-pad vacuum gripping tool comprising one tool-change interface, three foam pads, one ejector, one manifold 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 circuit is vented by the vent valve whil

• OT-2026-000050975
  Four bellows cup vacuum gripper, four zone face, four outlet manifold, three stage ejector, pressure sensor per zone, pulsed blow-off before set-down, on a tool changer
  September 17, 2026 · Vacuum Grippers · 1,229 words

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

• OT-2026-000050976
  Four bellows cup vacuum gripper, four outlet manifold, common isolation valve, single stage ejector, supply line pressure sensor, pulsed blow-off after set-down
  September 17, 2026 · Vacuum Grippers · 1,188 words

  A bellows-cup vacuum gripping tool comprising one mounting flange, four 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. After the workpiece has reache

• OT-2026-000050977
  Four cup vacuum gripper, four outlet manifold, common isolation valve, three stage ejector, vented before set-down
  September 17, 2026 · Vacuum Grippers · 877 words

  A suction-cup vacuum gripping tool comprising one mounting flange, four suction cups, one ejector, one isolation valve, one manifold 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 position, the vacuum circuit is ven

• OT-2026-000050978
  Three pad foam vacuum gripper, three outlet manifold, three stage ejector, vented before set-down
  September 17, 2026 · Vacuum Grippers · 772 words

  A foam-pad vacuum gripping tool comprising one mounting flange, three foam pads, one ejector, one manifold 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 circuit is vented by the vent valve while the

• OT-2026-000050979
  Four bellows cup vacuum gripper, four zone face, four outlet manifold, three stage ejector, pressure sensor per zone, pulsed blow-off before set-down
  September 17, 2026 · Vacuum Grippers · 1,158 words

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

• OT-2026-000050980
  Four bellows cup vacuum gripper, four outlet manifold, common isolation valve, single stage ejector, supply line pressure sensor, pulsed blow-off after set-down, on a tool changer
  September 17, 2026 · Vacuum Grippers · 1,293 words

  A bellows-cup vacuum gripping tool comprising one tool-change interface, four 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. After the workpiece has

• OT-2026-000050981
  Four cup vacuum gripper, four outlet manifold, common isolation valve, three stage ejector, vented before set-down, on a tool changer
  September 17, 2026 · Vacuum Grippers · 948 words

  A suction-cup vacuum gripping tool comprising one tool-change interface, four suction cups, one ejector, one isolation valve, one manifold 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 position, the vacuum circuit

• OT-2026-000050982
  Three pad foam vacuum gripper, three outlet manifold, three stage ejector, vented before set-down, on a tool changer
  September 17, 2026 · Vacuum Grippers · 878 words

  A foam-pad vacuum gripping tool comprising one tool-change interface, three foam pads, one ejector, one manifold 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 circuit is vented by the vent valve whil

• OT-2026-000050983
  Four bellows cup vacuum gripper, four zone face, four outlet manifold, three stage ejector, pressure sensor per zone, pulsed blow-off before set-down, on a tool changer
  September 17, 2026 · Vacuum Grippers · 1,264 words

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

• OT-2026-000050984
  Four bellows cup vacuum gripper, four outlet manifold, common isolation valve, single stage ejector, supply line pressure sensor, pulsed blow-off after set-down, on a tool changer
  September 17, 2026 · Vacuum Grippers · 1,259 words

  A bellows-cup vacuum gripping tool comprising one tool-change interface, four 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. After the workpiece has

• OT-2026-000050985
  Four cup vacuum gripper, four outlet manifold, common isolation valve, plant vacuum fed, vented before set-down
  September 17, 2026 · Vacuum Grippers · 827 words

  A suction-cup vacuum gripping tool comprising one mounting flange, four suction cups, one plant vacuum connection, one isolation valve, one manifold and one vent 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 pos

• OT-2026-000050986
  Three pad foam vacuum gripper, three outlet manifold, three stage ejector, vented before set-down, on a tool changer
  September 17, 2026 · Vacuum Grippers · 843 words

  A foam-pad vacuum gripping tool comprising one tool-change interface, three foam pads, one ejector, one manifold 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 circuit is vented by the vent valve whil

• OT-2026-000050987
  Four bellows cup vacuum gripper, four zone face, four outlet manifold, three stage ejector, pressure sensor per zone, pulsed blow-off before set-down, on a tool changer
  September 17, 2026 · Vacuum Grippers · 1,229 words

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

• OT-2026-000050988
  Four bellows cup vacuum gripper, four outlet manifold, common isolation valve, two stage ejector, supply line pressure sensor, pulsed blow-off after set-down
  September 17, 2026 · Vacuum Grippers · 1,188 words

  A bellows-cup vacuum gripping tool comprising one mounting flange, four 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. After the workpiece has reache

• OT-2026-000050989
  Four cup vacuum gripper, four outlet manifold, common isolation valve, plant vacuum fed, vented before set-down, on a tool changer
  September 17, 2026 · Vacuum Grippers · 932 words

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

• OT-2026-000050990
  Three pad foam vacuum gripper, three outlet manifold, plant vacuum fed, vented before set-down
  September 17, 2026 · Vacuum Grippers · 771 words

  A foam-pad vacuum gripping tool comprising one mounting flange, three foam pads, one plant vacuum connection, one manifold 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 the set-down position, the vacuum circuit is ven

• OT-2026-000050991
  Four bellows cup vacuum gripper, four zone face, four outlet manifold, three stage ejector, pressure sensor per zone, pulsed blow-off before set-down
  September 17, 2026 · Vacuum Grippers · 1,158 words

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

• OT-2026-000050992
  Four bellows cup vacuum gripper, four outlet manifold, common isolation valve, two stage ejector, supply line pressure sensor, pulsed blow-off after set-down, on a tool changer
  September 17, 2026 · Vacuum Grippers · 1,293 words

  A bellows-cup vacuum gripping tool comprising one tool-change interface, four 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. After the workpiece has

• OT-2026-000050993
  Four cup vacuum gripper, four outlet manifold, common isolation valve, plant vacuum fed, vented before set-down, on a tool changer
  September 17, 2026 · Vacuum Grippers · 898 words

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