VBPM125 Series XYZ Manipulators

The PM125 series is single bellows XYZ manipulator available as standard with a DN100CF base flange (DN160CF by request), and a DN100CF moving flange (DN63CF by request). With a 102mm inner diameter of the bellows, to obtain the full +/-25mm XY travel, the sample stage support rod and any associated wiring must be 52mm 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 25-500mm. The manipulator has a maximum 40kg load on the z axis.

Key Features


  • Z travel from 25-500mm
  • X/Y travel +/-25mm vector sum
  • Bellows inner diameter 102mm
  • Micrometer scales on all axes for repeatable positioning
  • Resolution: 0.01mm manual, 0.001mm motorised
  • DN100CF base flange with through holes
  • DN100CF 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
  • Maximum load on Z axis 40kg
  • Two positionable mechanical limits for the Z axis to limit the travel within its range
  • Options available (not listed in the table below, please ask):
    • DN100CF top flange with through holes instead of threaded (add TD at end of part number, adds 40mm to length A)
    • DN63CF top flange with threaded holes instead of DN100CF with threaded holes
    • DN160CF base flange
    • Manual handwheel at the top instead of the bottom for handwheel version (O at end of part number, adds 35mm to length B)
    • motorisation of Z axis with 2 phase stepper motor PKP 299 D 45B (Oriental) NEMA 34 / 6 Nm
    • motorisation of XY axes 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 drawingWeight (kg)Actuation ZActuation XY
VBPM125-2525288-31333230.5ManualManual
VBPM125-25+
VBPM125-25ZS225288-31333235.5MotorisedManual
VBPM125-25ZS2+
VBPM125-25S225288-31333241.5MotorisedMotorised
VBPM125-25S2+
VBPM125-5050288-33835731.0ManualManual
VBPM125-50+
VBPM125-50ZS250288-33835736.0MotorisedManual
VBPM125-50ZS2+
VBPM125-50S250288-33835742.0MotorisedMotorised
VBPM125-50S2+
VBPM125-7575288-36338231.5ManualManual
VBPM125-75+
VBPM125-75ZS275288-36338236.5MotorisedManual
VBPM125-75ZS2+
VBPM125-75S275288-36338242.5MotorisedMotorised
VBPM125-75S2+
VBPM125-100100288-38840732.0ManualManual
VBPM125-100+
VBPM125-100ZS2100288-38840737.0MotorisedManual
VBPM125-100ZS2+
VBPM125-100S2100288-38840743.0MotorisedMotorised
VBPM125-100S2+
VBPM125-150150288-43845733.0ManualManual
VBPM125-150+
VBPM125-150ZS2150288-43845738.0MotorisedManual
VBPM125-150ZS2+
VBPM125-150S2150288-43845744.0MotorisedMotorised
VBPM125-150S2+
VBPM125-200200288-48850734.0ManualManual
VBPM125-200+
VBPM125-200ZS2200288-48850739.0MotorisedManual
VBPM125-200ZS2+
VBPM125-200S2200288-48850745.0MotorisedMotorised
VBPM125-200S2+
VBPM125-250250288-53855734.5ManualManual
VBPM125-250+
VBPM125-250ZS2250288-53855739.5MotorisedManual
VBPM125-250ZS2+
VBPM125-250S2250288-53855745.5MotorisedMotorised
VBPM125-250S2+
VBPM125-300300358-65860735.0ManualManual
VBPM125-300+
VBPM125-300ZS2300358-65860740.0MotorisedManual
VBPM125-300ZS2+
VBPM125-300S2300358-65860746.0MotorisedMotorised
VBPM125-300S2+
VBPM125-350350358-70865736.0ManualManual
VBPM125-350+
VBPM125-350ZS2350358-70865741.0MotorisedManual
VBPM125-350ZS2+
VBPM125-350S2350358-70865747.0MotorisedMotorised
VBPM125-350S2+
VBPM125-400400358-75870736.5ManualManual
VBPM125-400+
VBPM125-400ZS2400358-75870741.5MotorisedManual
VBPM125-400ZS2+
VBPM125-400S2400358-75870747.5MotorisedMotorised
VBPM125-400S2+
VBPM125-450450358-80875737.0ManualManual
VBPM125-450+
VBPM125-450ZS2450358-80875742.0MotorisedManual
VBPM125-450ZS2+
VBPM125-450S2450358-80875748.0MotorisedMotorised
VBPM125-450S2+
VBPM125-500500368-86881738.0ManualManual
VBPM125-500+
VBPM125-500ZS2500368-86881743.0MotorisedManual
VBPM125-500ZS2+
VBPM125-500S2500368-86881749.0MotorisedMotorised
VBPM125-500S2+

VBPM125-25

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VBPM125-25ZS2

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VBPM125-25S2

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VBPM125-50

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VBPM125-50ZS2

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VBPM125-50S2

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VBPM125-75

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VBPM125-75ZS2

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VBPM125-75S2

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VBPM125-100

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VBPM125-100ZS2

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VBPM125-100S2

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VBPM125-150

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VBPM125-150ZS2

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VBPM125-150S2

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VBPM125-200

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VBPM125-200ZS2

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VBPM125-200S2

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VBPM125-250

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VBPM125-250ZS2

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VBPM125-250S2

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VBPM125-300

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VBPM125-300ZS2

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VBPM125-300S2

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VBPM125-350

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VBPM125-350ZS2

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VBPM125-350S2

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VBPM125-400

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VBPM125-400ZS2

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VBPM125-400S2

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VBPM125-450

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VBPM125-450ZS2

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VBPM125-450S2

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VBPM125-500

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VBPM125-500ZS2

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VBPM125-500S2

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