VBLD Series Pneumatic Linear feedthroughs

A robust pneumatic, open-ended linear feedthrough available in two flange sizes DN40CF and DN63CF. Compared to the stepper motor driven version of this product, it is designed for moving between discrete positions only, rather than for continuous motion. The pneumatic actuator can be specified as a 2 or 3 position version.

The LD series is also available in a manual handwheel or stepper motor version (see separate product pages).

Key Features


  • DN40CF and DN63CF flange sizes only
  • Travel options from 50-300mm depending on flange size
  • Pneumatic drive options for 2 positions or 3 positions
  • Two adjustable end-stops to limit the travel within its range
  • Bakeout temperature 230ºC without pneumatic drive
  • Maximum load for Z axis 10kg for DN40CF, 15kg for DN63CF
  • Flanges 316LN, tube and bellows 316L stainless steel
  • Pressure range 1bar – 10-11mbar
  • All models include a movement scale for easy identification of the current position
  • Available options not listed in the table below (please ask):
    • Limit switches to provide positional feedback when the manipulator reaches the end of its travel (bakeable and not bakeable versions available VBESBL or VBESBLH respectively)
    • DN40CF version top flange with thru holes adds 25mm to flange to flange distance
    • Magnetic permeability <1.01 (-LM at end of part number)
    • Straddled or in-line flange bolt hole orientation
    • Support tube for rotary feedthrough in base flange
Part No.Flange sizeTravel (mm)No. of positionsBase flange hole typeTop flange hole typeBellows inner diameter (mm)Flange to flange distance (mm)Length B (mm) - see drawingLength D (mm) - see drawingWeight (kg)
VBLD40-50PDN40CF502ThroughThreaded3975-1252804.7
VBLD40-50P+
VBLD40-75PDN40CF752ThroughThreaded3982.5-157.53375.3
VBLD40-75P+
VBLD40-100PDN40CF1002ThroughThreaded3990-1903955.8
VBLD40-100P+
VBLD40-150PDN40CF1502ThroughThreaded39105-2555106.9
VBLD40-150P+
VBLD40-200PDN40CF2002ThroughThreaded39120-3206258.1
VBLD40-200P+
VBLD40-250PDN40CF2502ThroughThreaded39135-38574010.2
VBLD40-250P+
VBLD40-25/50PDN40CF503ThroughThreaded3975-1252804.7
VBLD40-25/50P+
VBLD40-37,5/75PDN40CF753ThroughThreaded3982.5-157.53375.3
VBLD40-37,5/75P+
VBLD40-50/100PDN40CF1003ThroughThreaded3990-1903955.8
VBLD40-50/100P+
VBLD40-75/150PDN40CF1503ThroughThreaded39105-2555106.9
VBLD40-75/150P+
VBLD40-100/200PDN40CF2003ThroughThreaded39120-3206258.1
VBLD40-100/200P+
VBLD40-125/250PDN40CF2503ThroughThreaded39135-38574010.2
VBLD40-125/250P+
VBLD63-50PDN63CF502ThroughThrough70.5120-17040411.5
VBLD63-50P+
VBLD63-100PDN63CF1002ThroughThrough70.5120-22050412.2
VBLD63-100P+
VBLD63-150PDN63CF1502ThroughThrough70.5130-28061413.5
VBLD63-150P+
VBLD63-200PDN63CF2002ThroughThrough70.5140-34072414.6
VBLD63-200P+
VBLD63-250PDN63CF2502ThroughThrough70.5150-40083415.7
VBLD63-250P+
VBLD63-300PDN63CF3002ThroughThrough70.5160-46094416.8
VBLD63-300P+
VBLD63-25/50PDN63CF503ThroughThrough70.5120-17040411.5
VBLD63-25/50P+
VBLD63-50/100PDN63CF1003ThroughThrough70.5120-22050412.2
VBLD63-50/100P+
VBLD63-75/150PDN63CF1503ThroughThrough70.5130-28061413.5
VBLD63-75/150P+
VBLD63-100/200PDN63CF2003ThroughThrough70.5140-34072414.6
VBLD63-100/200P+
VBLD63-125/250PDN63CF2503ThroughThrough70.5150-40083415.7
VBLD63-125/250P+
VBLD63-150/300PDN63CF3003ThroughThrough70.5160-46094416.8
VBLD63-150/300P+

VBLD40-50P

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VBLD40-75P

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VBLD40-100P

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VBLD40-150P

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VBLD40-200P

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VBLD40-250P

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VBLD40-25/50P

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VBLD40-37,5/75P

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VBLD40-50/100P

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VBLD40-75/150P

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VBLD40-100/200P

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VBLD40-125/250P

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VBLD63-50P

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VBLD63-100P

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VBLD63-150P

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VBLD63-200P

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VBLD63-250P

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VBLD63-300P

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VBLD63-25/50P

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VBLD63-50/100P

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VBLD63-75/150P

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VBLD63-100/200P

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VBLD63-125/250P

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VBLD63-150/300P

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