Manufacturing of vacuum chambers, vacuum systems and space simulation systems made of stainless steel and aluminium
Just Vacuum GmbH
Landstuhl (DE) · Head office and manufacturingNew on Amplifa
About Just Vacuum
Just Vacuum GmbH is a company founded in 1993 and headquartered in Landstuhl (Rhineland-Palatinate), specialising in vacuum technology and space simulation. The company designs and manufactures custom vacuum chambers in cubic, conical and cylindrical shapes with chamber volumes of 0.5 to 100 m³ (the industry page states up to 500 m³) as well as complete vacuum systems including pumping and measurement equipment, PC- and PLC-based system control and process visualisation. A key focus is space simulation systems, i.e. thermal vacuum chambers with shroud, thermal table and dynamic temperature control systems from approx. -200 °C to +250 °C with LN2 cooling. Manufacturing is carried out in stainless steel (including 1.4301, 1.4435, 1.4404, 1.4571, ESU steel 1.4429), aluminium (AlMg3, AlMg4.5Mn), copper and µ-metal; the range of services also includes standard and special components, feedthroughs, large angle valves, pumping solutions as well as vessel construction and vacuum-insulated piping. The value chain extends from mechanical and electrical engineering design (3D CAD, E-Plan) via manufacturing, surface treatment and cleaning to assembly, on-site commissioning and after-sales service. Customers come from aerospace, universities and higher education institutions, chemistry and petrochemistry, particle accelerator/experimental physics and the food industry. Over 5000 standard components are available from stock with delivery within 24 hours.
- Site
- Landstuhl
- Processes
- Vacuum chamber manufacturing (stainless steel/aluminium, cubic, conical and cylindrical), Vacuum chambers from 0.5 - 100 m³, Chamber volumes up to 500 m³, Vacuum systems (custom vacuum systems incl. PC/PLC control, process visualisation), Space simulation systems / thermal vacuum chambers (incl. shroud, thermal table, dynamic, Special components (cutting, welding, surface treatment, cleaning, quality control), Standard components (KF, ISO-K, CF flange components, connectors, spring bodies,, Feedthroughs (SUB-D according to MIL-C-24308 up to 50 pins, cable, SMA, BNC,
- Materials
- Stainless steel 1.4301, Stainless steel 1.4435, Stainless steel 1.4404, Stainless steel 1.4571, ESU steel 1.4429, Aluminium AlMg3, Aluminium AlMg4.5Mn, Copper
- Certificates
- DIN EN ISO 9001:2015, ISO 9001
- Founded
- 1993
- Industries
- Aerospace, Universities & higher education institutions, Chemistry & petrochemistry, Particle accelerator / experimental physics, Food industry
- 01
Development & design (3D CAD, E-Plan)
- 02
Workpiece cutting
- 03
Welding
- 04
Surface treatment (glass bead blasting, electropolishing)
- 05
Cleaning (ultrasonic, deionised water)
- 06
Leak testing / quality control
- 07
Assembly and on-site commissioning
- 08
After-sales service
Materials & Processes
Stainless steel 1.4301 (304)
Standard material for vacuum chambers and special components.
Stainless steel 1.4435
For vacuum chambers with high demands on weldability.
Stainless steel 1.4404 (316L)
Used for chambers, special components and vessel construction (V4 metal).
Stainless steel 1.4571
Used for vacuum chambers and vessel construction.
ESU steel 1.4429 (316LN)
Special material for UHV special components.
Aluminium AlMg3
Chamber and system construction with low weight.
Aluminium AlMg4.5Mn
For highly stressed chamber constructions.
Copper
Material for shrouds and thermal tables in space simulation systems.
µ-metal
For magnetic shielding in research applications.
Electropolishing
Optional surface treatment for stainless steel components.
Glass bead blasting
Surface treatment inside/outside (KF/ISO); CF inside bare, outside polished or blasted.
Locations
Landstuhl
DEHead office, design and manufacturing
- Part weight / size
- Chamber volume 0.5–100 m³ (up to 500 m³)
- Lot size
- Single units and small series, custom-made products
- Materials
- Stainless steel 1.4301/1.4435/1.4404/1.4571/1.4429, aluminium AlMg3/AlMg4.5Mn, copper, µ-metal
- 3D CAD Pro/E Wildfire 4
- AutoCAD
- Siemens Simatic PLC
- WAGO CodeSys
- Beckhoff PLC
- Allen Bradley RS500
- WinCC
- LabView
- E-Plan
- Space simulation system (own, since 2020)
Components
Inside the production
Industries
Processes & technical limits
| Processes | Tolerance | Max. part | Weight | Lot size | Materials |
|---|---|---|---|---|---|
| Vacuum chamber manufacturing (stainless steel/aluminium, cubic, conical and cylindrical)Joining | Roughness N8, sealing surface N6, N7 | – | – | – | Stainless steel 1.4301, 1.4435, 1.4404, 1.4571, Aluminium AlMg3, AlMg4.5Mn, Copper, µ-metal |
| Vacuum chambers from 0.5 - 100 m³Joining | – | – | 0.5 m³ – 100 m³ | – | – |
| Chamber volumes up to 500 m³Joining | – | – | 500 m³ | – | Stainless steel, Aluminium, µ-metal, Copper |
| Vacuum systems (custom vacuum systems incl. PC/PLC control, process visualisation)Engineering | – | – | – | – | – |
| Space simulation systems / thermal vacuum chambers (incl. shroud, thermal table, dynamicEngineering | – | – | – | – | Copper, Aluminium, Stainless steel |
| Special components (cutting, welding, surface treatment, cleaning, quality control)Joining | Roughness N8 or better | – | – | – | Stainless steel 1.4301 (304), 1.4404/1.4435 (316L), ESU steel 1.4429 (316LN) |
| Standard components (KF, ISO-K, CF flange components, connectors, spring bodies,Joining | – | – | – | 1 | Stainless steel |
| Feedthroughs (SUB-D according to MIL-C-24308 up to 50 pins, cable, SMA, BNC,Joining | – | – | – | – | Stainless steel |
| Large angle valves DN 400 ISO-K to DN 1000 ISO-F (in-house manufacturing)Joining | – | – | – | 1 – Small series/custom-made | – |
| Pumping solutions (rotary vane, scroll, screw, turbomolecular, cryo, oil diffusion pumps,Engineering | – | – | – | – | – |
| Development & design (mechanical 3D CAD Pro/E Wildfire 4, AutoCad; electrical according to VDE,Engineering | – | – | – | – | – |
| Automation / retrofit (control and visualisation upgrade for any vacuum system)Engineering | – | – | – | – | – |
| Vessel construction (V4 metal 1.4404, 1.4571; electropolished)Joining | – | – | – | – | Stainless steel 1.4404, 1.4571 |
| Vacuum-insulated double-walled piping / piping systemsJoining | – | – | – | – | Stainless steel |
| ANSI flanges (pressure flanges)Joining | – | – | – | – | – |
| UHV chambers, UHV components, manipulatorsJoining | – | – | – | – | Stainless steel, Copper, Aluminium |
| Glass bead blasting (inside/outside for KF/ISO; CF inside bare, outside polished or glass beadSurface | Roughness N8 or better | – | – | – | Stainless steel |
| ElectropolishingSurface | – | – | – | – | Stainless steel |
| Cleaning (free of oil and grease, deionised water, ultrasonic cleaning)Surface | – | – | – | – | – |
| Leak testing / leak rate testing <1.0 E-9 mbar l/s, welded parts tested individuallyTesting | Leak rate <1.0 E-9 mbar l/s | – | – | – | – |
| Assembly and commissioning on-site at the customerAssembly | – | – | – | – | – |
| Components for plasma coating technologySurface | – | – | – | – | – |
| Temperature distribution simulation (table/shroud) and nitrogen consumption calculationEngineering | – | – | – | – | – |
10 Anlagen & Maschinen
| Machine | Manufacturer / model | Quantity | Working area | Year built | Site |
|---|---|---|---|---|---|
| 3D CAD system | PTC Pro/E Wildfire 4 | – | – | – | Landstuhl |
| CAD software | Autodesk AutoCAD | – | – | – | Landstuhl |
| PLC control | Siemens Simatic PLC | – | – | – | Landstuhl |
| PLC control | WAGO CodeSys | – | – | – | Landstuhl |
| PLC control | Beckhoff | – | – | – | Landstuhl |
| PLC control | Allen Bradley RS500 | – | – | – | Landstuhl |
| Visualisation software | Siemens WinCC | – | – | – | Landstuhl |
| Visualisation software | National Instruments LabView | – | – | – | Landstuhl |
| Electrical CAD software | E-Plan | – | – | – | Landstuhl |
| Space simulation system (own, for research purposes, since 2020) | Just Vacuum | 1 | – | 2020 | Landstuhl |
Additional services
Quality
Certified quality management system according to DIN EN ISO 9001:2015. Welded parts are individually tested for a leak rate < 1.0 E-9 mbar·l/s; roughness N8, sealing surfaces N6/N7; cleaning free of oil and grease as well as cleanroom-compatible packaging on request.
| Evidence | Landstuhl |
|---|---|
| ISO 9001 |
History
- 1993
Company founded in Kusel
- 1998
New company building in Landstuhl; establishment and expansion of in-house manufacturing of systems and plants for HV and UHV applications
- 2001
Development into a specialist for space simulation chambers
- 2008
Renaming to Just Vacuum GmbH; basis for international expansion
- 2010
Development of control and automation technology for vacuum systems
- 2011
Europe-wide installation of vacuum systems in industry and research
- 2015
Construction of an additional hall
- 2020
Construction of an own space simulation system for research purposes