VBPPL Series Push and pull manual linear feedthroughs

A compact bellows-based manual push-pull linear feedthrough with an 8mm diameter shaft available on DN16CF and DN40CF flanges and travels from 25-150mm. Ideal for applications where fast, manual in and out movement is needed. A lock screw is provided to prevent the feedthrough moving inwards under the vacuum force once the desired position is reached.

Key Features


  • DN16CF and DN40CF flange sizes (with through holes) only
  • Travel options from 25-150 mm depending on flange size
  • Shaft diameter 8mm (last 20 mm turned down to 6mm diameter)
  • External diameter 37 mm
  • M3 threaded hole, 10mm deep in the end of the shaft
  • Graduated scale on the external slide-rod for reproducible positioning
  • Positioning resolution 0.01 mm
  • Flanges 316LN, bellows 316L stainless steel
  • Pressure range 1bar – 10-11mbar
  • Bakeable to 230ºC
  • Other fully-retracted lengths and travels on request (please ask)
  • Shaft-end design modifications on request (please ask)
Part No.Flange sizeTravel (mm)In vacuum length, A (mm)External body length, B (mm)External rod length, C (mm)Weight (kg)
VBPPL16-25DN16CF25100-12512554-790.4
VBPPL16-25+
VBPPL16-50DN16CF50100-150157.565-1150.6
VBPPL16-50+
VBPPL16-100DN16CF100100-200222.585-1850.9
VBPPL16-100+
VBPPL16-150DN16CF150100-250287.5110-2601.1
VBPPL16-150+
VBPPL40-25DN40CF25100-12512554-790.6
VBPPL40-25+
VBPPL40-50DN40CF50100-150157.565-1150.8
VBPPL40-50+
VBPPL40-100DN40CF100100-200222.585-1851.1
VBPPL40-100+
VBPPL40-150DN40CF150100-250287.5110-2601.3
VBPPL40-150+

VBPPL16-25

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VBPPL16-50

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VBPPL16-100

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VBPPL16-150

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VBPPL40-25

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VBPPL40-50

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VBPPL40-100

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VBPPL40-150

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