VBPMK12 Series XYZ Manipulators

The PMK12 series is single bellows XYZ manipulator available as standard with a DN63CF base flange (DN100CF by request), and a DN40CF moving flange (DN63CF by request). With a 65mm inner diameter of the bellows, to obtain the full +/-12.5mm XY travel, the sample stage support rod and any associated wiring must be 40mm diameter or less. The manipulator can be supplied with all axes manually-operated, motorised Z axis or with all 3 axes motorised. Z travels are available from 50-600mm. The manipulator has a maximum 20kg load on the z axis.

Key Features


  • Z travel from 50-600mm in 50mm increments
  • X/Y travel +/-12.5mm vector sum
  • Bellows inner diameter 65mm
  • Micrometer scales on all axes for repeatable positioning
  • Resolution: 0.01mm manual, 0.001mm motorised
  • DN63CF base flange with through holes
  • DN40CF top flange with threaded holes
  • UHV compatible, bakeout up to 230ºC (motors have to be removed if motorised)
  • Flanges 316LN, tube and bellows 316L stainless steel
  • Pressure range 1 bar – 1×10-11 mbar
  • Two positionable mechanical limits for the Z axis to limit the travel within its range
  • Maximum load on Z axis 20kg
  • Options available (not listed in the table below, please ask):
    • DN40CF top flange with through holes instead of threaded (add TD at end of part number)
    • DN63CF top flange with threaded holes instead of DN40CF with threaded holes
    • DN100CF base flange (bellows size unchanged, adds 2.5mm to length A, add B100 at end of part number)
    • DN100CF base flange option with additional 6xDN16CF around it angled downwards at 45º for feedthroughs etc (add K at end of part number)
    • motorisation with 2 phase stepper motor PKP268MD28B (Oriental) NEMA 23 / 2 Nm
    • Linear encoder, motor encoder
    • Limit switches to provide feedback if an axis reaches either end of its travel
Part No.Travel (mm)Length A - flange-flange (mm)Length B (mm) see drawingLength C (mm) see drawingWeight (kg)Actuation ZActuation XY
VBPMK12-5050224-27434313.5ManualManual
VBPMK12-50+
VBPMK12-50ZS250224-27432715.5MotorisedManual
VBPMK12-50ZS2+
VBPMK12-50S250224-27432719.5MotorisedMotorised
VBPMK12-50S2+
VBPMK12-100100224-32439314.2ManualManual
VBPMK12-100+
VBPMK12-100ZS2100224-32437716.2MotorisedManual
VBPMK12-100ZS2+
VBPMK12-100S2100224-32437720.2MotorisedMotorised
VBPMK12-100S2+
VBPMK12-150150234-38445314.9ManualManual
VBPMK12-150+
VBPMK12-150ZS2150234-38443716.9MotorisedManual
VBPMK12-150ZS2+
VBPMK12-150S2150234-38443720.9MotorisedMotorised
VBPMK12-150S2+
VBPMK12-200200244-44451315.6ManualManual
VBPMK12-200+
VBPMK12-200ZS2200244-44449717.6MotorisedManual
VBPMK12-200ZS2+
VBPMK12-200S2200244-44449721.6MotorisedMotorised
VBPMK12-200S2+
VBPMK12-250250254-50457316.3ManualManual
VBPMK12-250+
VBPMK12-250ZS2250254-50455718.3MotorisedManual
VBPMK12-250ZS2+
VBPMK12-250S2250254-50455722.3MotorisedMotorised
VBPMK12-250S2+
VBPMK12-300300264-56463317.0ManualManual
VBPMK12-300+
VBPMK12-300ZS2300264-56461719.0MotorisedManual
VBPMK12-300ZS2+
VBPMK12-300S2300264-56461723.0MotorisedMotorised
VBPMK12-300S2+
VBPMK12-350ZS2350284-63467719.7MotorisedManual
VBPMK12-350ZS2+
VBPMK12-350S2350284-63467723.7MotorisedMotorised
VBPMK12-350S2+
VBPMK12-400400294-69476318.4ManualManual
VBPMK12-400+
VBPMK12-400ZS2400294-69474720.4MotorisedManual
VBPMK12-400ZS2+
VBPMK12-400S2400294-69474724.4MotorisedMotorised
VBPMK12-400S2+
VBPMK12-500500324-82489319.8ManualManual
VBPMK12-500+
VBPMK12-500ZS2500324-82487721.8MotorisedManual
VBPMK12-500ZS2+
VBPMK12-500S2500324-82487725.8MotorisedMotorised
VBPMK12-500S2+
VBPMK12-600600354-954102321.2ManualManual
VBPMK12-600+
VBPMK12-600ZS2600354-954100723.2MotorisedManual
VBPMK12-600ZS2+
VBPMK12-600S2600354-954100727.2MotorisedMotorised
VBPMK12-600S2+

VBPMK12-50

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VBPMK12-50ZS2

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VBPMK12-50S2

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VBPMK12-100

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VBPMK12-100ZS2

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VBPMK12-100S2

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VBPMK12-150

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VBPMK12-150ZS2

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VBPMK12-150S2

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VBPMK12-200

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VBPMK12-200ZS2

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VBPMK12-200S2

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VBPMK12-250

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VBPMK12-250ZS2

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VBPMK12-250S2

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VBPMK12-300

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VBPMK12-300ZS2

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VBPMK12-300S2

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VBPMK12-350ZS2

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VBPMK12-350S2

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VBPMK12-400

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VBPMK12-400ZS2

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VBPMK12-400S2

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VBPMK12-500

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VBPMK12-500ZS2

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VBPMK12-500S2

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VBPMK12-600

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VBPMK12-600ZS2

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VBPMK12-600S2

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