VBLD Series Motorised Linear feedthroughs

A robust stepper motor driven open-ended linear feedthrough available in a variety of flange sizes from DN16CF to DN200CF. The motor is ideal for more automated setups, especially where the required motion is on a frequent basis. The sturdy frame allows for good stability. In many variations the flange bolt holes are not threaded at either end which allows for a greater range of mounting locations.

The LD series is also available in a manual handwheel or pneumatic version (please see separate product page). They can be paired with the DDF series differentially-pumped rotary feedthroughs or supplied with an integral port aligner to tilt the top flange or X-table to translate the top flange.

Key Features


  • DN16CF – DN200CF flange sizes
  • Travel options from 25-700mm depending on flange size
  • Stepper motor driven version (see separate product listings for manual and pneumatic)
    • Motor type DN16CF-DN63CF sizes Oriental PKP 268 MD 28B (Nema 23)
    • Motor type DN100CF-DN200CF sizes Oriental PKP 299 D45B (Nema 34)
  • Two adjustable end-stops to limit the travel within its range
  • Positioning resolution 0.001mm
  • Bakeout temperature 230ºC with motor removed
  • Flanges 316LN, tube and bellows 316L stainless steel
  • Pressure range 1bar – 10-11mbar
  • All models include a movement scale for easily repeatable positioning
  • Many available options not listed in the table below (please ask, there are too many variations to list):
    • Internal support tube (-SL at end of part number)
    • 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)
    • Position feedback via linear potentiometer, linear encoder, motor encoder
    • DN40CF version top flange with thru holes (-TD at end of part number) adds 25mm to flange to flange distance
    • DN40CF and above: Magnetic permeability <1.01 (-LM at end of part number)
    • DN100CF and DN160CF sizes only: Motor at the top of the mechanism instead of bottom as standard (-O at end of part number)
    • Additional hollow rotary feedthrough on top (see DDF series product page in the same flange size and check bolt hole type!)
    • Additional rotary feedthrough with a shaft (specially-extended PD40 series PD40###-LD)
    • DN40CF version: Integrated X-translator to move top flange +/-12.5mm at 90º to direction of linear movement (X at end of part number)
    • DN40CF-DN100CF sizes: integrated port aligner for tilt capability of the top flange (-PORT at end of part number)
    • Other travels and variations by special request
Part No.Flange sizeTravel (mm)Form factorBase flange hole typeTop flange hole typeBellows inner diameter (mm)Flange to flange distance (mm)Length B (mm) - see drawingLength C (mm) - see drawingWeight (kg)
VBLD16-25LAS2DN16CF25StandardThroughThrough1678-1032642.4
VBLD16-25LAS2+
VBLD16-25KAS2DN16CF25Short/CompactThroughThrough1657-822432.4
VBLD16-25KAS2+
VBLD16-50LAS2DN16CF50StandardThroughThrough1690-1402892.45
VBLD16-50LAS2+
VBLD16-50KAS2DN16CF50Short/CompactThroughThrough1669-1192672.45
VBLD16-50KAS2+
VBLD16-100LAS2DN16CF100StandardThroughThrough16110-2103392.5
VBLD16-100LAS2+
VBLD16-100KAS2DN16CF100Short/CompactThroughThrough1689-1893182.5
VBLD16-100KAS2+
VBLD16-150LAS2DN16CF150StandardThroughThrough16130-2803892.6
VBLD16-150LAS2+
VBLD16-150KAS2DN16CF150Short/CompactThroughThrough16109-2593682.6
VBLD16-150KAS2+
VBLD16-200LAS2DN16CF200StandardThroughThrough16130-3304392.8
VBLD16-200LAS2+
VBLD16-200KAS2DN16CF200Short/CompactThroughThrough16109-3094182.8
VBLD16-200KAS2+
VBLD40-50S2DN40CF50StandardThroughThreaded3975-1252155.0
VBLD40-50S2+
VBLD40-75S2DN40CF75StandardThroughThreaded3982.5-157.5247.55.2
VBLD40-75S2+
VBLD40-100S2DN40CF100StandardThroughThreaded3990-1902805.4
VBLD40-100S2+
VBLD40-150S2DN40CF150StandardThroughThreaded39105-2553455.8
VBLD40-150S2+
VBLD40-200S2DN40CF200StandardThroughThreaded39120-3203456.2
VBLD40-200S2+
VBLD40-250S2DN40CF250StandardThroughThreaded39135-3854757.6
VBLD40-250S2+
VBLD40-300S2DN40CF300StandardThroughThreaded39150-4505408.0
VBLD40-300S2+
VBLD40-350S2DN40CF350StandardThroughThreaded39195-5456358.6
VBLD40-350S2+
VBLD40-400S2DN40CF400StandardThroughThreaded39205-6056959.0
VBLD40-400S2+
VBLD40-500S2DN40CF500StandardThroughThreaded39225-7258159.4
VBLD40-500S2+
VBLD40-600S2DN40CF600StandardThroughThreaded39250-8509409.8
VBLD40-600S2+
VBLD63-50S2DN63CF50StandardThroughThrough70.5120-17032710.1
VBLD63-50S2+
VBLD63-100S2DN63CF100StandardThroughThrough70.5120-22037711.9
VBLD63-100S2+
VBLD63-150S2DN63CF150StandardThroughThrough70.5130-28043712.8
VBLD63-150S2+
VBLD63-200S2DN63CF200StandardThroughThrough70.5140-34049713.7
VBLD63-200S2+
VBLD63-250S2DN63CF250StandardThroughThrough70.5150-40055714.6
VBLD63-250S2+
VBLD63-300S2DN63CF300StandardThroughThrough70.5160-46061715.5
VBLD63-300S2+
VBLD63-400S2DN63CF400StandardThroughThrough70.5190-59074717.3
VBLD63-400S2+
VBLD63-500S2DN63CF500StandardThroughThrough70.5220-72087719.1
VBLD63-500S2+
VBLD63-600S2DN63CF600StandardThroughThrough70.5250-850100720.9
VBLD63-600S2+
VBLD100-25S2DN100CF25StandardThroughThrough102155-18034721.7
VBLD100-25S2+
VBLD100-25KS2DN100CF25Short/CompactThreadedThreaded10256-8133226.3
VBLD100-25KS2+
VBLD100-50S2DN100CF50StandardThroughThrough102155-20537222.0
VBLD100-50S2+
VBLD100-50KS2DN100CF50Short/CompactThreadedThreaded10256-10635726.9
VBLD100-50KS2+
VBLD100-75S2DN100CF75StandardThroughThrough102155-23039722.8
VBLD100-75S2+
VBLD100-75KS2DN100CF75Short/CompactThreadedThreaded10256-13138227.3
VBLD100-75KS2+
VBLD100-100S2DN100CF100StandardThroughThrough102155-25542223.0
VBLD100-100S2+
VBLD100-100KS2DN100CF100Short/CompactThreadedThreaded10256-15640727.5
VBLD100-100KS2+
VBLD100-150S2DN100CF150StandardThroughThrough102155-30547223.5
VBLD100-150S2+
VBLD100-200S2DN100CF200StandardThroughThrough102155-35552224.0
VBLD100-200S2+
VBLD100-200KS2DN100CF200Short/CompactThreadedThreaded10284-15657027.5
VBLD100-200KS2+
VBLD100-250S2DN100CF250StandardThroughThrough102155-40557225.0
VBLD100-250S2+
VBLD100-300S2DN100CF300StandardThroughThrough102205-50562227.0
VBLD100-300S2+
VBLD100-350S2DN100CF350StandardThroughThrough102205-55567227.7
VBLD100-350S2+
VBLD100-400S2DN100CF400StandardThroughThrough102205-60572228.5
VBLD100-400S2+
VBLD100-450S2DN100CF450StandardThroughThrough102205-65577229.4
VBLD100-450S2+
VBLD100-500S2DN100CF500StandardThroughThrough102215-71583230.3
VBLD100-500S2+
VBLD100-550S2DN100CF550StandardThroughThrough102225-77589231.4
VBLD100-550S2+
VBLD100-600S2DN100CF600StandardThroughThrough102235-83595232.5
VBLD100-600S2+
VBLD100-650S2DN100CF650StandardThroughThrough102245-895101233.8
VBLD100-650S2+
VBLD100-700S2DN100CF700StandardThroughThrough102255-955107235.1
VBLD100-700S2+
VBLD160-25S2DN160CF25StandardThroughThrough150155-18034625.7
VBLD160-25S2+
VBLD160-25KS2DN160CF25Short/CompactThreadedThreaded15056-8133425.6
VBLD160-25KS2+
VBLD160-50S2DN160CF50StandardThroughThrough150155-20537125.9
VBLD160-50S2+
VBLD160-50KS2DN160CF50Short/CompactThreadedThreaded15056-10635925.9
VBLD160-50KS2+
VBLD160-75S2DN160CF75StandardThroughThrough150155-23039626.1
VBLD160-75S2+
VBLD160-75KS2DN160CF75Short/CompactThreadedThreaded15056-13138426.2
VBLD160-75KS2+
VBLD160-100S2DN160CF100StandardThroughThrough150155-25542126.2
VBLD160-100S2+
VBLD160-100KS2DN160CF100Short/CompactThreadedThreaded15056-15640926.5
VBLD160-100KS2+
VBLD160-150S2DN160CF150StandardThroughThrough150155-30547126.8
VBLD160-150S2+
VBLD160-200S2DN160CF200StandardThroughThrough150155-35552127.5
VBLD160-200S2+
VBLD160-250S2DN160CF250StandardThroughThrough150205-45557129.9
VBLD160-250S2+
VBLD160-300S2DN160CF300StandardThroughThrough150205-50562130.7
VBLD160-300S2+
VBLD160-350S2DN160CF350StandardThroughThrough150205-55567131.4
VBLD160-350S2+
VBLD160-400S2DN160CF400StandardThroughThrough150205-60572132.1
VBLD160-400S2+
VBLD160-450S2DN160CF450StandardThroughThrough150225-67577132.8
VBLD160-450S2+
VBLD160-500S2DN160CF500StandardThroughThrough150235-73583133.5
VBLD160-500S2+
VBLD160-550S2DN160CF550StandardThroughThrough150245-79589134.2
VBLD160-550S2+
VBLD160-600S2DN160CF600StandardThroughThrough150255-85595134.9
VBLD160-600S2+
VBLD160-650S2DN160CF650StandardThroughThrough150265-915101135.6
VBLD160-650S2+
VBLD160-700S2DN160CF700StandardThroughThrough150275-975107136.3
VBLD160-700S2+
VBLD200-50S2DN200CF50Short/CompactThreadedThreaded200167-21742757
VBLD200-50S2+
VBLD200-100S2DN200CF100Short/CompactThreadedThreaded200167-26747765
VBLD200-100S2+
VBLD200-150S2DN200CF150Short/CompactThreadedThreaded200167-31752774
VBLD200-150S2+
VBLD200-200S2DN200CF200Short/CompactThreadedThreaded200167-36757783
VBLD200-200S2+

VBLD16-25LAS2

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VBLD16-25KAS2

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VBLD16-50LAS2

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VBLD16-50KAS2

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VBLD16-100LAS2

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VBLD16-100KAS2

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VBLD16-150LAS2

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VBLD16-150KAS2

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VBLD16-200LAS2

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VBLD16-200KAS2

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VBLD40-50S2

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VBLD40-75S2

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VBLD40-100S2

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VBLD40-150S2

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VBLD40-200S2

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VBLD40-250S2

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VBLD40-300S2

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VBLD40-350S2

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VBLD40-400S2

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VBLD40-500S2

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VBLD40-600S2

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VBLD63-50S2

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VBLD63-100S2

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VBLD63-150S2

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VBLD63-200S2

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VBLD63-250S2

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VBLD63-300S2

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VBLD63-400S2

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VBLD63-500S2

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VBLD63-600S2

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VBLD100-25S2

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VBLD100-25KS2

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VBLD100-50S2

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VBLD100-50KS2

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VBLD100-75S2

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VBLD100-75KS2

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VBLD100-100S2

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VBLD100-100KS2

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VBLD100-150S2

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VBLD100-200S2

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VBLD100-200KS2

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VBLD100-250S2

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VBLD100-300S2

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VBLD100-350S2

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VBLD100-400S2

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VBLD100-450S2

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VBLD100-500S2

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VBLD100-550S2

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VBLD100-600S2

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VBLD100-650S2

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VBLD100-700S2

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VBLD160-25S2

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VBLD160-25KS2

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VBLD160-50S2

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VBLD160-50KS2

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VBLD160-75S2

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VBLD160-75KS2

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VBLD160-100S2

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VBLD160-100KS2

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VBLD160-150S2

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VBLD160-200S2

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VBLD160-250S2

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VBLD160-300S2

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VBLD160-350S2

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VBLD160-400S2

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VBLD160-450S2

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VBLD160-500S2

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VBLD160-550S2

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VBLD160-600S2

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VBLD160-650S2

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VBLD160-700S2

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VBLD200-50S2

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VBLD200-100S2

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VBLD200-150S2

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VBLD200-200S2

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