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LN2-cooled UHV Suitcase Configuration


Equipped with an optional liquid nitrogen dewar for active sample cooling, cryo shields (CTD50SHIELDS) enshrouding the sample, as well as a temperature measuring kit, this NexGeneration UHV suitcase enables transport of sensitive samples under cryo conditions in a truly portable, fully featured, especially compact, lightweight and slim UHV system.

The sample is situated within a customized cryo shield inside the suitcase in order to be protected from contamination coming off the chamber walls while the suitcase is cold. Integrated viewports in the shields allow for observation of the sample inside.

For easy transfer of samples into your system, the cryo suitcase can either be mounted directly to your loadlock or via our Fast Pump Down Dock.

An optional DN50CF top flange on the UHV suitcase is required for mounting of the LN2 dewar. Retrofittment of the dewar and cryo shields to a UHV suitcase with standard DN40CF top flange is therefore not possible.

The high voltage for the ion-pump element is delivered by the rechargeable, battery-driven power supply LSA2.0 or optional LSA2.1 (with 10x better pumping current display resolution). The vacuum level can be monitored by converting the displayed ion pump current to pressure units, using the current to pressure table of the pump manufacturer. The NEG element can be activated with any standard DC lab power supply.

To see if this configuration suits your needs, please download our questionnaire for further information.

Don't hesitate to contact us at for more information and the adaptation to your system.


View of CTD50SHIELDS thermal shields through side viewport:

NexGeneration UHV Suitcase References:

More UHV-Suitcases are successfully operational at further sites.

Specifications: LN2-cooled UHV Suitcase Configuration

This configuration of the VSN40S includes:

  • Ultra compact UHV-chamber
    Flange list VSN40SCH:
    1x DN40CF-R transfer flange
    1x DN40CF-WS for transfer manipulator
    2x DN40CF-T for Viewport
    1x DN40CF-WS for Pump: NEXTORR D100-5
    1x DN50CF-T for Liquid Nitrogen Dewar
    2x DN16CFT Service Ports
  • WM40-0500-YYYY Single Shaft Wobblestick Transporter DN40CF
  • TSWMSVSNHR Tube Support for Wobblestick on VSN40S(HLVR|HRVL)
  • CTD50SHIELDS Assembly of thermals shields for UHV suitcase including Liquid Nitrogen Dewar and Cooling Block
  • TMPSHIELDCF16 Temperature Measurement Kit for UHV Suitcases with Thermal Shields
  • VAT mini UHV gate valve, series 010, manual operation
  • NexTorr D-100-5 combination pump
  • LSA2.0 battery driven HV-supply
  • Set of cables
  • 2x viewports DN40CF, gaskets, bolt sets, sideplates, completely mounted
  • Side/baseplates and 1x carrying handle

Bakeout temperature: 150deg C max.
Fully UHV compatible materials
Weight: approx. 12-14kg, depending on configuration
Ready for use: delivered under vacuum.

Download drawings VSN40S NexGeneration UHV Suitcase (format A3):
VSN40S page 1/3: Product overview showing different configurations
VSN40S page 2/3: Options and order code
VSN40S page 3/3: Product detail in a scale of 1:1 to show the ultra-compact dimension

Download manual



The following is a list of compatible options for VSN40S(VTOPCF50SP2x16)-0350-WM40-TSWMVSNV-CTD50SHIELDS-TMPSHIELDCF16 LN2-cooled UHV Suitcase Configuration.

List price:

350.00 CHF

299.68 EUR*
353.00 USD*

Upgrade from LSA2.0 to LSA2.1 high voltage supply

Product code: UPGRADELSA2.0(+LSA2.1)

Upgrade from LSA2.0 (included in the base VSN40S module) to LSA2.1 high voltage supply

List price:

950.00 CHF

813.43 EUR*
958.14 USD*

Upgrade to 200 l/s nominal pumping speed for VSN40S

Product code: UPGRADEVSN40S(+D200)

Upgrade to NexTorr D-200-5 with 200 l/s nominal pumping speed

List price:

1'240.00 CHF

1'061.73 EUR*
1'250.63 USD*

Flightcase for NexGeneration UHV Suitcase

Product code: VSN40SFLIGHTCASE

Professional transport case for NexGeneration UHV Suitcase

List price:

on request

Fast Pump Down Dock with LN2 UHV Booster CF40

Product code: VSCT40

Fast pumpdown dock for UHV Suitcase. A turbo pumped, compact docking chamber is equipped with an LN2 cold trap.

A working pressure in the 1E-8mbar range can be reached within less than 1 hour.

List price:

on request

UHV Booster CF40

Product code: CT40(WT)

LN2 cold trap for fast pump down dock, flow through version.


List price:

695.00 CHF

595.09 EUR*
700.96 USD*

Ultra-Compact DN40CF Cross

Product code: VSCROSS40RL80

Ultra compact DN40CF cross used as buffer volume between a UHV-system and a vacuum suitcase. Insert length 80mm, with a port for pumpdown using a turbo pump and an additional CF40 for an vacuum gauge.

List price:

400.00 CHF

342.50 EUR*
403.43 USD*

Compact DN40CF T-piece

Product code: VSTEE40

Compact DN40CF T-piece used as buffer volume on sample interchange systems. Length: 90mm

List price:

on request

Intelligent LED Chamber Ring Light on Adapter for DN40CF

Product code: ADLED40

Ring of 16 individually controllable RGB LEDs, fixed to an adapter for DN40CF.

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