Vacuum System Components

VSM Instruments supplies many of the components you need to construct, maintain or modify your vacuum system including standard vacuum components such as flanges and adapters, custom components and chambers. We also sell a range of valves including gate valves, turbo and backing pumps, bakeout equipment and sample handling, manipulation and in-vacuum motion. Accessories such as pressure measurement are also available.

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Vacuum System Components

VSM Instruments supplies many of the components you need to construct, maintain or modify your vacuum system including standard vacuum components such as flanges and adapters, custom components and chambers. We also sell a range of valves including gate valves, turbo and backing pumps, bakeout equipment and sample handling, manipulation and in-vacuum motion. Accessories such as pressure measurement are also available.

Key Features


We specialise in kits of parts for custom vacuum projects and delivering a consultative service to get the best combination of components for your requirements. Not all solutions are listed individually, so please contact us to discuss your needs.

  • In-vacuum motion, manipulation and sample handling
  • Standard flanges in CF, KF and ISO
  • Viewports
  • Adapters between the various sizes and standards
  • Custom components and adapters
  • Custom chambers
  • Turbo pumps
  • Backing pumps
  • Gate valves
  • Gas inlets
  • Angle valves
  • Bakeout

Copper Gaskets

Copper gaskets are a vital part of any UHV system with CF flanges as they act as the single use compressible seal between the two knife edges. VSM Instruments is your one stop shop for gaskets in any size please ask us for a quote.

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Motion and Manipulation

VSM Instruments offers a whole range of Ultra-High Vacuum motion and manipulation products in order to provide sample motion in a vacuum environment. Please click the sub-categories below in order to browse our range.

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Refractory metal fasteners

Components in vacuum can sometimes be close to sources of heat, particularly when they are close to the sample stage. In such cases it is often necessary to use small screws, nuts and washers made from refractory materials such as molybdenum or tantalum. These materials have a very low vapour pressure at elevated temperature, even in a vacuum environment.

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UHV Bakeout

VSM Instruments offers a full range of bakeout solutions including everything from heating tapes to custom tents and jackets. We are also able to supply temperature control solutions

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Vacuum Pumps

Vacuum pumps are essential for creating optimal low-pressure environments in various applications, such as industrial processes, scientific research, and electronics manufacturing. VSM Instruments partners with a range of vacuum pump suppliers, in particular Shimadzu via their European office in Germany. By working with Shimadzu and a range of other pump suppliers we are able bring you a range of different pumps focussed primarily on the high (HV) and ultra-high vacuum (UHV) environment and targeted at customers in academia, national laboratories and industrial R&D.

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Vacuum viewports

We offer viewports in a range of flange sizes and standards. Below you see our standard Kodial glass viewports. For special coatings and materials, please contact us.

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Valves

We offer a full range of valves for high and ultra-high vacuum applications including gate valves, angle valves and leak valves in a wide range of flange sizes

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Vacuum System Components

VSM Instruments supplies many of the components you need to construct, maintain or modify your vacuum system including standard vacuum components such as flanges and adapters, custom components and chambers. We also sell a range of valves including gate valves, turbo and backing pumps, bakeout equipment and sample handling, manipulation and in-vacuum motion. Accessories such as pressure measurement are also available.

Key Features


We specialise in kits of parts for custom vacuum projects and delivering a consultative service to get the best combination of components for your requirements. Not all solutions are listed individually, so please contact us to discuss your needs.

  • In-vacuum motion, manipulation and sample handling
  • Standard flanges in CF, KF and ISO
  • Viewports
  • Adapters between the various sizes and standards
  • Custom components and adapters
  • Custom chambers
  • Turbo pumps
  • Backing pumps
  • Gate valves
  • Gas inlets
  • Angle valves
  • Bakeout

Heating tapes for bake out

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GVCG Series standard copper gaskets

These OHFC (oxygen-free) copper gaskets are the every-day choice for sealing standard flanges where no high temperature baking or special viewports are being mounted. They are the lowest cost option, and the default for many customers.

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GVCGA Series annealed copper gaskets

These OHFC (oxygen-free) copper gaskets are annealed to make them softer. This results in a lower tightening torque requirement for fragile components such as viewports.

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GVCGB Series blank copper gaskets

These OHFC (oxygen-free) copper gaskets solid without a central hole. Applications include blocking the pathway between two flanges or to allow the user to drill a smaller hole to reduce the conductance between two parts of the chamber.

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GVCGS Series silver plated copper gaskets

These OHFC (oxygen-free) copper gaskets are silver plated to prevent oxidation at high temperatures, making them ideal for systems which are frequently baked at high temperature. Oxidation of the gasket can eventually cause leakage, so the choice of silver plated gaskets, while more expensive is sometimes a price worth paying for reduced down-time and system reliability.

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Gate Valves

We offer a full range of HV and UHV-compatible gate valves in a range of flange sizes and flange standards including CF, KF and ISO. Options are available for manual or pneumatic actuation as well as limit switches and position indicators.

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Angle Valves

We offer a full range of HV and UHV-compatible angle valves in a range of flange sizes and flange standards including CF, KF and ISO. Valves can be configured with different combinations of metal or O-ring seals depending on the application. Options are available for manual or pneumatic actuation as well as limit switches and position indicators. All our angled valves have a bellows around the actuation mechanism.

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VBMDS40 Transfer rod DN40CF

High quality UHV magnetically-coupled transfer rod with rotation and linear motion. Standard travels from 100-1000mm in 100mm increments.

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VBPM12 Series Dual Bellows UHV XYZ Manipulators

The PM12 series XYZ manipulators are available as standard with a DN100CF base flange and a DN63CF moving flange. They offer +/-12.5mm travel in XY and up to 1 metre in Z. The smaller Z bellows has an internal diameter of 39mm and a support bearing for a 38mm diameter insert (other diameters on request). The manipulator has a maximum 30kg load on the z axis. A range of made-to-fit cryostats, sample stages and rotation stages are also available.

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Shimadzu TMP B300 Turbo Pump

The Shimadzu B300 Turbo Pump is a high-performance, compact, and reliable 300l/s turbomolecular pump designed for demanding vacuum applications. It offers excellent pumping speed and compression ratios suitable for a wide range of processes in research, industry, and electronics. This size of pump is typically suitable for smaller vacuum chambers such as load locks. Key advantages include:

  • Combination of ceramic and magnetic bearings for long service intervals and lower running costs
  • Suitable for UHV pressures in combination with a small dry backing pump
  • Integrated controller allows simple push button operation, or optional display unit for detailed operating information
  • High compression ratio for optimised operation with light gases
  • Mountable in any orientation
  • Fast delivery times
  • Low power consumption and heat generation
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Kashiyama NeoDry E series roots backing pump

The Kashiyama E series pumps offer considerable advantages over a traditional dry scroll pump. They operate by means of two counter-rotating multi-stage root rotors which operate without contact. They are completely dry, particulate free and air cooled. Above all they are much quieter in operation than a dry scroll pump.

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Kodial Glass Viewports

Kodial viewports are seen as the default standard for vacuum viewports when no special optical properties are needed except for transmission at visible wavelengths in order to see inside a vacuum chamber.

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VB(U)HS Series Sample Stages

These VB(U)HS sample stages are designed to fit to our VBHVK Series cryostats, as well as directly to an XYZ manipulator or rotation stage when cooling is not required. Versions with cooling are constructed from gold-coated copper which facilitates excellent sample cooling due to a good thermal connection to the cryostat, and can be optionally configured for different sample entry directions. Cooling connection is either via direct contact to the cryostat or via VCR connectors and stainless steel tubing in the case of liquid nitrogen-only cooling. They can be equipped for 3 different types of sample heating – alumina heater, e-beam heating and direct current heating. The e-beam versions offer a higher maximum temperature than alumina but require a special sample holder with a hole for best performance.

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VBGDV6/16 UHV Fine Leak Valve

A UHV fine leak valve with DN16CF flanges designed as a highly controllable manually-operated gas inlet for vacuum chambers, ion sources, plasma sources etc.

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VBHVK Series Cryostats

The HVK series cryostats are primarily optimised for integration with our VBPM series dual bellows manipulators with a DDF63P rotation stage on top. For this reason they are supplied on a DN63CF flange. There are also two more compact options in the range for a smaller DN40CF flange, which due to their flange size offer less space for electrical feedthroughs. Finally two options include an additional motion axis within the cryostat which is usually used to actuate a secondary rotation within the sample stage.

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Siphon for VBHVK Helium Cryostats

These vacuum-insulated siphons are designed to tranfer liquid helium or nitrogen from the dewar to the VB-HVK series cryostats. They are available in U shape for vertically-mounted cryostats or L shape for horizontally-mounted.

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VBMDWS Series Magnetically-Coupled Wobble Sticks (1 rotation, 1 linear axis)

Our VBMDWS series wobble sticks are designed to provide linear, tilt and rotation axes for applications where a pincer is not required. Typically they are fitted with a SPECS-style transfer tool for flag style sample holders with a 90º release/engage mechanism which can be provided optionally as part of the package. These wobble sticks include a parking station and stop ring.

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VBMDWS2 Series Magnetically-Coupled Wobble Sticks (1 linear, 2 rotation axes)

Our VBMDWS2 series wobble sticks are designed to provide linear, tilt and dual rotation axes. These wobble sticks include a parking station but no transfer tool.

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VBMDJS40 Series Magnetically-Coupled Transfer Rod with pincer and port aligner

Our VBMDJS40 series transfer rods have a design similar to a wobble stick but have a set-and-forget integral port aligner for angular alignment. They are designed for longer travel applications where a pincer actuator is preferred, but which would be too long for a wobble stick to be a sensible solution.  They provide a linear and rotation axis and actuation for the pincer.

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VBMDWSZ Series Magnetically-Coupled Wobble Sticks (1 rotation, 2 linear axis, optional linear or 90º pincer)

Our VBMDWSZ series wobble sticks are designed to provide linear, tilt and one rotation axis. There is an additional short travel inner linear axis designed to actuate an optional pincer tool to grab flag-style samples. These wobble sticks include a parking station and stop ring.

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VBPM Series XY Tables

The VBPM series XY stages provide a wide range of options for flange size, bellows diameter and motorised or manual operation. Please see the product table for full details.

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VBPM25 Series Dual Bellows UHV XYZ Manipulators

The PM25 series XYZ manipulators are available as standard with a DN160CF base flange and a DN63CF moving flange. They offer +/-25mm travel in XY and up to 1 metre in Z. The smaller Z bellows has an internal diameter of 39mm and a support bearing for a 38mm diameter insert (other sizes on request). The manipulator has a maximum 30kg load on the z axis. A range of made-to-fit cryostats, sample stages and rotation stages are also available.

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VBHST Horizontal support for PM12 and PM25 XYZ Manipulators

This horizontal support is specifically designed to provide support between longer versions of the PM12 and PM25 manipulators when mounted horizontally. It is spring-loaded to compensate for the movement in the vertical axis while still providing support and can also compensate for the lateral movement in the short horizontal axis. It is designed to be mounted on a customer-supplied support frame or system table.

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VBPMAX25 Series Dual Bellows UHV XYZ Manipulators

The PMAX25 series XYZ manipulators are available as standard with a DN100CF base flange and a DN63CF moving flange. They offer +/-25mm travel in XY and up to 600mm in Z. The smaller Z bellows has an internal diameter of 66mm and comes as standard without a support bearing. The larger inner and outer diameter compared to the PM series mean that larger inserts are possible The manipulator has a maximum 30kg load on the z axis.

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VBPMEGA25 Series Dual Bellows UHV XYZ Manipulators

The PMEGA25 series XYZ manipulators are available as standard with a DN160CF base flange and a DN100CF moving flange. They offer +/-25mm travel in XY and up to 600mm in Z. The smaller Z bellows has an internal diameter of 102mm and comes as standard without a support bearing, so it is suitable for very large inserts. The manipulator has a maximum 40kg load on the z axis.

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VBPMAKRO25 Series Dual Bellows UHV XYZ Manipulators

The VBPMAKRO25 series XYZ manipulators are available as standard with a DN200CF base flange and a DN160CF moving flange. They offer +/-25mm travel in XY and up to 600mm in Z. The smaller Z bellows has an internal diameter of 150mm and comes as standard without a support bearing, so it is suitable for very large inserts. The manipulator has a maximum 40kg load on the z axis and is only available fully motorised.

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VBPMM12-X UHV X-Table

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VBSTWS Series Mechanically-Coupled Wobble Sticks (no rotation, 1 linear axis)

Our VBSTWS series wobble sticks are designed to provide linear and tilt motion only. No rotation is possible due to the fixed mechanical coupling with the  external actuator. These wobble sticks have a significant price advantage in applications where no rotation is needed, and the lack of a magnet may also be important in some situations. A longer internal bellows is necessary for the linear and tilt motion, compared to the MDWS series where only a short bellows is required to facilitate the tilt motion. The larger surface area of this bellows may lead to greater outgassing during motion, and it’s minimum in-vacuum length is necessarily longer than the magnetically coupled equivalent travel.

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VBSWS Series Mechanically-Coupled Short Wobble Sticks (no rotation, 1 linear axis)

Our VBSWS series wobble sticks are a more compact alternative to the STWS series and are designed to provide linear and tilt motion only. No rotation is possible due to the fixed mechanical coupling with the  external actuator. These wobble sticks have a significant price advantage in applications where no rotation and a short travel is needed, and the lack of a magnet may also be important in some situations.

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VBTXY Series Precision UHV XY Tilt Stages

Our VBTXY XY tilt stages are designed to provide continuous, calibrated adjustment of up to +/-5° of tilt between two flanges separated by a bellows. The stages are available in flange sizes from DN40CF to DN160CF. The stages are used in applications where a frequent tilt adjustment is needed and are provided with a graduated scale in each tilt axis. If a set-and-forget tilt adjustment is preferred, please see our range of port aligners.

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VBX40-12 UHV X-Table

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VBKPM12 Series XYZ Manipulators

The KPM12 series is a simple, compact, budget-friendly single bellows XYZ manipulator available as standard with a DN40CF flange size at both ends (DN50CF or DN63CF base flange by request). With a 39mm inner diameter of the bellows, to obtain the full +/-12.5mm XY travel, the sample stage support rod and any associated wiring must be 14mm 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 10kg load on the z axis.

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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.

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VBPD40LD Long rotary feedthrough for XYZ manipulator 4th axis

This long shaft version of the PD40 series rotary feethrough is designed to be compatible with our VBPMK series manipulators in order to add a 4th (rotation) axis. They can be manually or stepper-motor driven and are mounted on a DN40CF flange

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VBPHM series rotation / feedthrough assemblies with optional LN2 cooling

The PHM series feedthrough assemblies are designed to provide the motion axes to enable 4 or 5 axis motion on our VBPMK12, VBPM12 and VBPM25 series in applications where no cooling or liquid nitrogen cooling is required. If Helium cooling is required, please see our VBHVK series cryostats instead. They also include suitable feedthroughs to provide electrical connections to the sample stage, as well as optional liquid nitrogen cooling pipes and feedthroughs.

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VBPMM12 Series XYZ Manipulators

The PMM12 series is single bellows XYZ manipulator available as standard with a DN63CF base flange (DN100CF or DN160CF by request), and a DN63CF moving flange (DN40CF by request). With a 70.5mm inner diameter of the bellows, to obtain the full +/-12.5mm XY travel, the sample stage support rod and any associated wiring must be 45.5mm 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.

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VBPM112 Series XYZ Manipulators

The PM112 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 +/-12.5mm XY travel, the sample stage support rod and any associated wiring must be 77mm 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.

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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.

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VBMAX25 Series XYZ Manipulators

The MAX25 series is a large single bellows XYZ manipulator available as standard with a DN100CF base flange (DN160CF or DN200CF by request), and a DN100CF moving flange (DN63CF by request). Unlike the PM125, the XY table is at the bottom rather than the top for maximum rigidity and a more compact minimum flange to flange distance for the respective travels. 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 50-700mm. The manipulator has a maximum 40kg load on the z axis.

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VBMEGA25 Series XYZ Manipulators

The MEGA25 series is our largest single bellows XYZ manipulator. It comes as standard with a DN160CF base flange (DN200CF by request), and a DN160CF moving flange (DN100CF or DN63CF by request). The XY table is at the bottom rather than the top for maximum rigidity a compact minimum flange to flange distance. With a 150mm inner diameter of the bellows, to obtain the full +/-25mm XY travel, the sample stage support rod and any associated wiring must be 100mm 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 50-700mm. The manipulator has a maximum 30kg load on the z axis.

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Shimadzu TMP B70 Turbo Pump

The Shimadzu B70 Turbo Pump is a high-performance, compact, and reliable 70l/s turbomolecular pump designed for demanding vacuum applications. It offers excellent pumping speed and compression ratios suitable for a wide range of processes in research, industry, and electronics. This size of pump is typically suitable for smaller vacuum chambers such as load locks. Key advantages include:

  • Combination of ceramic and magnetic bearings for long service intervals and lower running costs
  • Suitable for UHV pressures in combination with a small dry backing pump
  • Integrated controller allows simple push button operation, or optional display unit for detailed operating information
  • High compression ratio for optimised operation with light gases
  • Mountable in any orientation
  • Fast delivery times
  • Low power consumption and heat generation
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Shimadzu EI-DPS240 Display Unit with Power Supply

The Shimadzu EI-DPS240 display unit is designed to work seamlessly with Shimadzu B70 and B300 series turbo pumps. The unit provides a display of key pump parameters in a conveniently sized unit. It can also be used to display the pressure reading from any pressure gauge with a 0-10V analogue output and provides convenient interlock functions.

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Kashiyama NeoDry G series roots backing pump

The Kashiyama G series pumps offer a step up in some key specifications compared to the E series. In particular they are even quieter, slightly smaller and meet the European harmonic emission requirements. In general Kashiyama pumps offer considerable advantages over a traditional dry scroll pump. They operate by means of two counter-rotating multi-stage root rotors which operate without contact. They are completely dry, particulate free and air cooled. Above all they are much quieter in operation than a dry scroll pump.

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Ion pumps

Ion pumps use electrical fields to ionise gas and trap ions on a solid surface.  Ion pumps are the ultimate UHV pump for vibration-sensitive applications because their operation is completely silent, they do not employ any moving parts. This also means that they are maintenance-free for long periods. Ion pumps are however not designed for pumping large volumes of gas and the chamber must be pumped down first with a mechanical pump (usually a turbo pump) before they can be switched on.

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Dry scroll backing pumps

Scroll pumps operate without any oil by employing two interleaved spiral scrolls for compression, offering clean and quiet operation. They require regular maintenance to exchange the tip seals

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VBMDS2-40 Dual concentric axis transfer rod DN40CF

High quality UHV magnetically-coupled dual axis transfer rod with linear motion and two independent rotation axes. Standard travels from 300-1000mm in 100mm increments.

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VBMDS63 Linear transfer rod DN63CF with sample lift capability

High quality heavy duty UHV magnetically-coupled single axis transfer rod with standard travels from 300-1000mm in 100mm increments. Unlike our DN40CF transfer rods this transfer rod is designed to be equipped with a special end-effector for lifting up the sample holder where this is needed for sample transfer. This means that the rotation axis rotates only a central 6mm rod, while the outer rod on the vacuum side is a square one with 15mm sides.

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VBMDS16 Compact Linear transfer rod DN16CF

High quality UHV magnetically-coupled single axis transfer rod with linear and rotary motion on a DN16CF flange. Linear travels available from 50-300mm in 50mm increments. A high torque version is also available (see VBMDS16-HT)

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VBMDS40/16 Compact Linear transfer rod DN40CF

High quality UHV magnetically-coupled single axis transfer rod with linear and rotary motion on a DN40CF flange. Linear travels available from 50-300mm in 50mm increments. A high torque version is also available (see VBMDS40/16-HT)

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VBJUMEM-40 Port Aligner

DN40CF port aligner available in three length options

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VBJUMEM-63 Port Aligner

DN63CF port aligner available in three length options

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SPECS Transfer tool with M3 mounting

SPECS Transfer tool for SPECS-style flag sample holders

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SPECS Transfer tool with M6 mounting

SPECS Transfer tool for SPECS-style flag sample holders

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SPECS Lateral Transfer tool to clamp on 12mm shaft

SPECS Transfer tool for SPECS-style flag sample holders

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VBDD Series O-Ring Sealed High Vacuum (KF) Feedthroughs

Our VBDD series feedthroughs are equipped with shaft which passes all the way through the assembly and is sealed by elastomer O-rings. They are available on KF and ISO flanges.  They are capable of full continuous 360º rotation and can be optionally manually-operated or driven by 2 phase stepper motor.

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VBDDF Series Hollow Rotary Feedthroughs with Differential pumping

Our VBDDF series feedthroughs are equipped with a rotating O-ring seal with two differential pumping stages, such that they are still suitable for UHV conditions while being capable of full 360º rotation. They can be operated manually or optionally by 2 phase stepper motor.

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VBJUMEM-100 Port Aligner

DN100CF port aligner available in three length options

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VBJUMEM-160 Port Aligner

DN160CF port aligner available in three length options

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VBLD Series Manual Linear feedthroughs

A robust handwheel-driven open-ended linear feedthrough available in a variety of flange sizes from DN16CF to DN160CF. The handwheel allows for greater ease of use compared to the LDK series, especially where the required motion is on a frequent basis. The sturdy frame also allows for greater stability. In many variations the flange bolt holes are not threaded at either end (unlike the LDK series) which allows for a greater range of mounting locations. On most models the handwheel can optionally be mounted in a variety of locations for ease of access.

The LD series is also available in a motorised version or with a pneumatic actuator (please see separate product pages). 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.

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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.

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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).

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VBLDK Series Linear feedthroughs

Available in three flange sizes from DN16 CF to DN63CF and travels from 50-150mm (25mm for DN16CF), this simple, low cost hand-operated mechanism provides linear motion by operation of a knurled knob.

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VBLDL40 Series Heavy Duty Linear Feedthroughs

A robust bellows-based linear feedthrough with a 15kg/50kg lateral / axial maximum load and a 25mm diameter shaft which can be driven by handwheel or by stepper motor. The feedthrough is only available with a DN40CF flange, and travels from 50-400mm.

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VBMD Series Magnetically-Coupled Rotary Feedthroughs

Our VBMD series feedthroughs are equipped with a magnetically-coupled shaft and are available in two flange sizes . They are capable of full 360º rotation and can be operated manually or optionally by 2 phase stepper motor or pneumatic drive. Compared to mechanical bellows rotary drive, magnetic drives can be more durable in high RPM motorised applications. Manual versions offer a lower cost solution where limited torque is required and backlash is unimportant.

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VBML Series Precision manual linear feedthroughs

A compact bellows-based manual linear feedthrough with an 8mm diameter shaft available on DN16CF and DN40CF flanges and travels from 25-125mm.

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VBMLSM Series Linear Feedthroughs

A robust bellows-based linear feedthrough which can be driven by handwheel or by stepper motor. The feedthrough has an 8mm diameter shaft and is available with DN16CF and DN40CF flanges and with travels from 25-150mm.

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VBMLSMI40 Series Internal Bellows Linear Feedthroughs

A robust linear feedthrough with a vacuum-side bellows which can be driven by handwheel or by stepper motor. The vacuum side of the feedthrough has a large 33mm diameter platform with 4 M5 screw holes. The feedthrough is only available with a DN40CF flange. A vacuum side bellows may have advantages for internally-baked systems but also the large internal platform can be advantageous in certain applications compared to a rod.

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VBMR Series Magnetically-Coupled Hollow Rotary Feedthroughs

Our VBMR series feedthroughs are equipped with a magnetically-driven sub-flange and are available in two sizes . They are capable of full continuous 360º rotation driven by 2 phase stepper motor. Unlike our DDF series, because they are magnetically-driven, no differentially-pumped seal is required, leading to enhanced durability and vacuum performance, especially when fast rotation is needed. They include a rotary table with tapped holes on the vacuum side.

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VBPD Series Bellows-Sealed Rotary Feedthroughs

Our VBPD series feedthroughs are equipped with a bellows-sealed, mechanically-coupled shaft in a variety of flange sizes and vacuum side length options. They are capable of full 360º rotation and can be operated manually or optionally by 2 phase stepper motor.

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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.

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VBSHCF K Series Standard Viewport Shutters

Simple shutter with a manually operated single flap opening in a wide range of sizes

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VBSHCF Series Venetian Viewport Shutters

Viewport shutter with a manually operated venetian blind-style opening in two sizes

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VBSST Series Fast-Entry Door

Fast entry doors in a range of sizes from DN40CF-DN300CF

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VBMLP Series Pneumatic linear feedthroughs

A compact bellows-based pneumatic linear feedthrough with an 8mm diameter shaft available on DN16CF and DN40CF flanges and travels from 25-150mm. Pneumatic drive can be specified as 2 and 3 position versions.

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