Swiss stainless steel plant manufacturer for piping systems, tank systems, process plants and PCA airport systems
ISTinox AG
Thun-Gwatt (CH)New on Amplifa
We are ISTinox
ISTinox AG (until 31.12.2025 IST-Edelstahl-Anlagenbau AG) is a stainless steel specialist process plant manufacturer headquartered in Thun-Gwatt, Switzerland. Since 1975 the company has planned, manufactured and installed plant and piping systems, tanks and vessels as well as complete process plants as a general contractor – from the initial idea to commissioning. Production is carried out exclusively in stainless steel, duplex and special materials; the manufacturing techniques include radiographically tested welding, pipe bending from DN 15 to DN 100 in ISO and DIN dimensions, pipe outlet forming with T-Drill machines as well as pickling and passivation. The portfolio also includes the Aircraft Ground Energy System (AGES) for power and air conditioning supply (PCA) of aircraft on the ground, including telescopic tubes, hose reels and aircraft couplings. Customers come from the chemical, energy, pharmaceutical, food and beverage, water supply, and infrastructure and transport industries, including Zurich Airport, Munich Airport, BKW Energie AG and BLS AG. The products are certified according to ISO 9001 as well as the Pressure Equipment Directive PED 2014/68/EU and AD 2000.
- Site
- CH-3645 Thun-Gwatt
- Processes
- Piping construction (stainless steel piping systems), Welding (welding work with radiographic testing, qualified according to EN ISO 9606-1), Pipe bending (from DN 15 to DN 100, ISO and DIN dimensions), Pipe outlet forming (outlets formed directly from the pipe, T-Drill outlet forming machines), Pickling & passivation, Manufacturing (stainless steel construction, equipment and vessel construction, single-unit to, Tank construction (tank farms, process vessels and tanks), Plant and equipment construction (turnkey process plants)
- Materials
- Stainless steel, Special materials, Duplex, Fibreglass
- Certificates
- ISO 9001, EN 3834-3 (welding certification), PED 2014/68/EU (Modules A1 and C1), AD 2000, EN ISO 9606-1 (welder qualification), EN ISO 14732 (operator/setter qualification), EN ISO 15613/15614-1 (welding procedure qualification), EN 3834-3, EN ISO 9606-1, EN ISO 14732, EN ISO 15613/15614-1
- Founded
- 1975
- Industries
- Chemicals, Energy, Infrastructure and transport (airports, railway stations), Food and beverages, Pharmaceuticals, Water supply
- 01
Planning and engineering
- 02
Design
- 03
Manufacturing (welding, pipe bending, pipe outlets, pickling & passivation)
- 04
Installation
- 05
Commissioning and service
Materials & Manufacturing Techniques
Stainless steel
Core material of the company for hygienic, corrosion-resistant plant, tank and piping systems.
Duplex
High-strength stainless composite material for demanding welding and piping tasks.
Special materials
For special process media and extreme requirements beyond stainless steel.
Fibreglass
Used in the PCA aircraft coupling with stainless steel flange for lightweight, durable constructions.
Location
Thun-Gwatt
CHHeadquarters and production
- Lot size
- Single-unit production to series production
- Materials
- Stainless steel, duplex, special materials
- T-Drill outlet forming machine
- Pipe bending machine (DN 15–DN 100, ISO and DIN)
Solutions & Components
Inside the production
Industries
Processes & technical limits
| Processes | Tolerance | Max. part | Weight | Lot size | Materials |
|---|---|---|---|---|---|
| Piping construction (stainless steel piping systems)Installation | – | – | – | Individual components – complete systems | Stainless steel |
| Welding (welding work with radiographic testing, qualified according to EN ISO 9606-1)Joining | – | – | – | – | Stainless steel, Duplex, Special materials |
| Pipe bending (from DN 15 to DN 100, ISO and DIN dimensions)Forming | – | – | – | – | Stainless steel |
| Pipe outlet forming (outlets formed directly from the pipe, T-Drill outlet forming machines)Forming | – | – | – | Single-unit production – Series production | Stainless steel |
| Pickling & passivationSurface | – | – | – | – | Stainless steel |
| Manufacturing (stainless steel construction, equipment and vessel construction, single-unit toInstallation | – | – | – | Single-unit production – Series production | Stainless steel, Special materials |
| Tank construction (tank farms, process vessels and tanks)Casting | – | – | – | – | Stainless steel |
| Plant and equipment construction (turnkey process plants)Installation | – | – | – | – | Stainless steel |
| Planning and engineering (design of plants)Engineering | – | – | – | – | – |
| Installation and service (on-site installation)Installation | – | – | – | – | – |
| Manufacturing of PCA systems for airports (AGES: PCA unit, telescopic tube, hose reel,Installation | Minimal pressure loss due to low | – | – | – | Stainless steel, Fibreglass |
| Production of coaxial heat exchangers, pressure and safety doors, sight glasses, manhole covers,Installation | – | – | – | – | Stainless steel |
2 Anlagen & Maschinen
| Machine | Manufacturer / model | Quantity | Working area | Year built | Site |
|---|---|---|---|---|---|
| T-Drill outlet forming machine | T-Drill | – | – | – | Thun-Gwatt, Switzerland |
| Pipe bending machine (state-of-the-art bending technology, DN 15 to DN 100) | – | – | Pipe bending from DN 15 to DN 100 in ISO and DIN dimensions | – | Thun-Gwatt, Switzerland |
Additional services
Reference customers
Quality & Certificates
All welding work is performed with radiographic testing and qualified according to EN ISO 9606-1; individual weld seam documentation is available on request. The company is certified according to ISO 9001, EN 3834-3, PED 2014/68/EU (Modules A1 and C1) and AD 2000.
| Evidence | Thun-Gwatt |
|---|---|
| ISO 9001 | |
| EN 3834-3 | |
| PED 2014/68/EU (Modules A1 and C1) | |
| AD 2000 | |
| EN ISO 9606-1 | |
| EN ISO 14732 | |
| EN ISO 15613/15614-1 |
History
- 1975
Founding – since 1975 the IST brand has stood for quality in stainless steel plant construction.
- 1999
Installation of the PCA systems at Dock E of Zurich Airport – still in operation today.
- 2026
As of 01.01.2026, IST-Edelstahl-Anlagenbau AG will officially operate as ISTinox AG.