
Manufacture of turbine components, pressure vessels, structural steel and hydraulic steelwork up to 32 t unit weight

HSI Turbinenstahlbau Dresden-Übigau GmbH
Dresden (Werftstraße 5)New on Amplifa
About HSI Turbinenstahlbau Dresden
HSI Turbinenstahlbau Dresden-Übigau GmbH manufactures turbine and power plant components, pressure vessels, steel structures, hydraulic steelwork and mechanical engineering parts such as base frames, machine mounts and generator housings at the traditional Dresden-Übigau site. Its service portfolio includes welding (manual metal arc, TIG, MIG/MAG, autogenous welding) on mild and stainless steel as well as heat-resistant high-alloy steels, CNC flame cutting up to 120 mm material thickness, rolling, bending and machining, sandblasting and paint coatings up to a unit weight of 32 t. In addition to new production, the company offers power plant service, boiler repairs and a worldwide spare and wear parts service for marine boiler systems, including the design of trash racks, stop logs, suction pipes and piping. Customers come from hydropower, power plant construction, mechanical and special machinery engineering, plant engineering and shipbuilding. The company operates according to ISO 9001:2015 and is among others approved as a pressure vessel manufacturer according to AD 2000 HP 0 and EN 13445-4.
- Site
- Dresden
- Processes
- Welding work (manual metal arc, TIG, MIG, MIG-MAG, autogenous welding), CNC flame cutting, Cutting with saws and cut-off machines, Guillotine shear cutting, Rolling work, Bending work, Facing lathe work, Turning work
- Materials
- Stainless steel, Mild steel, heat-resistant high-alloy steels, Sheet metal
- Certificates
- ISO 9001:2015, AD 2000 Merkblatt HP 0, EN ISO 3834-2, EN 13445-4 (AD 2000 HP100 R), DIN EN 1090-1, DIN EN 1090-2, DIN EN 1090-1/-2
- Founded
- 1836 (Stan
- Industries
- Power plant construction / hydropower, Mechanical and special machinery engineering, Plant engineering, Shipbuilding (marine boilers), Power plant construction/hydropower
- 01
Design according to customer requirements
- 02
Cutting (CNC flame cutting machine, saws, guillotine shear)
- 03
Forming (rolling, bending)
- 04
Welding and fabrication of parts and assemblies
- 05
Machining (turning, drilling, milling)
- 06
Surface treatment (sandblasting, paint coating)
- 07
Testing and acceptance
- 08
Assembly or partial assembly
Materials and processes
Mild steel
Base material for welded constructions in structural steel, vessel and hydraulic steelwork.
Stainless steel
For wear- and corrosion-exposed components in vessel and apparatus engineering.
heat-resistant high-alloy steels
Used in power plant and marine boiler service for replacement tube banks, tube bundles and assemblies.
Dresden site

Dresden
DEHeadquarters and manufacturing
- Part weight / size
- up to 32 t unit weight
- Lot size
- Single-unit and small-batch production to drawing
- Materials
- Mild steel, stainless steel, heat-resistant high-alloy steels
- CNC flame cutting machine (3 x 12 m, up to 120 mm)
- Guillotine shear (up to 12 mm)
- Rolling machine (up to 14 mm, 2,500 mm width)
- Press brake (up to 10 mm, 2,500 mm width)
- Facing lathe (up to 3,000 mm diameter)
- Lathe (up to 400 mm diameter, 2,500 mm length)
- Radial and pillar drilling machine
- CNC machining center (turning, drilling, milling)
- Blasting cabin (8 x 4 x 4 m)
- Painting cabin (8 x 4 x 4 m)
Components






Inside the production





Industries
Processes & technical limits
| Processes | Tolerance | Max. part | Weight | Lot size | Materials |
|---|---|---|---|---|---|
| Welding work (manual metal arc, TIG, MIG, MIG-MAG, autogenous welding)Joining | – | – | – | – | Mild steel, Stainless steel |
| CNC flame cuttingMachining | – | 12 m × 3 m | Material thickness 120 mm | – | Steel |
| Cutting with saws and cut-off machinesMachining | – | – | – | – | Steel |
| Guillotine shear cuttingForming | – | – | Material thickness 12 mm | – | Steel |
| Rolling workForming | – | 2,500 mm | Material thickness 14 mm | – | Steel |
| Bending workForming | – | 2,500 mm | Sheets up to 10 mm material thickness | – | Steel |
| Facing lathe workMachining | – | – | up to 3,000 mm diameter | – | – |
| Turning workMachining | – | 2,500 mm | Maximum diameter 400 mm | – | – |
| Drilling work on radial and pillar drilling machinesMachining | – | – | – | – | – |
| CNC machining: turning, drilling, millingMachining | – | – | – | – | – |
| Sandblasting work (abrasive corundum/steel grit, cleanliness grade SA 2.5)Surface | – | 8 m × 4 m × 4 m | – | – | – |
| Paint coating work (compressed air and airless processes)Surface | – | 8 m × 4 m × 4 m | – | – | – |
| Parts and assembly fabrication for turbine, vessel, structural steel and piping constructionAssembly | – | – | up to a unit weight of 32 t | – | – |
| Pressure vessel manufacturing (HPO)Welding/vessel fabrication | – | – | – | – | heat-resistant high-alloy steels |
| Manufacture of turbines and boiler systemsAssembly | – | – | – | – | – |
| Structural steel and vessel constructionAssembly | – | – | – | – | – |
| Manufacture of mechanical engineering parts (base frames, machine mounts, generator housings,Assembly | – | – | – | – | Sheet metal |
| Design and manufacture of coarse and fine trash racks, dam and stop logs, suction pipes, manifoldsEngineering | – | – | – | – | – |
| Power plant service and assembly workAssembly | – | – | – | – | – |
| Manufacture of replacement tube banks, tube bundles and replacement tubes for marine boiler systemsJoining | – | – | – | – | heat-resistant high-alloy steels |
| Visual testingTesting | – | – | – | – | – |
| Dye penetrant testingTesting | – | – | – | – | – |
| X-ray testingTesting | – | – | – | – | – |
| Magnetic particle testingTesting | – | – | – | – | – |
| Ultrasonic testingTesting | – | – | – | – | – |
| Pressure and strength testingTesting | – | – | – | – | – |
| Leak testingTesting | – | – | – | – | – |
13 Anlagen & Maschinen
| Machine | Manufacturer / model | Quantity | Working area | Year built | Site |
|---|---|---|---|---|---|
| CNC flame cutting machine | – | – | Plate size 3 x 12 m, material thickness up to 120 mm | – | Dresden |
| Saws and cut-off machines | – | – | – | – | Dresden |
| Guillotine shear | – | – | Material thickness up to 12 mm | – | Dresden |
| Rolling machine | – | – | Material thickness up to 14 mm, 2,500 mm width | – | Dresden |
| Press brake | – | – | Sheets up to 10 mm material thickness, 2,500 mm width | – | Dresden |
| Facing lathe | – | – | up to 3,000 mm diameter | – | Dresden |
| Lathe | – | – | max. diameter 400 mm, max. length 2,500 mm | – | Dresden |
| Radial drilling machine | – | – | – | – | Dresden |
| Pillar drilling machine | – | – | – | – | Dresden |
| CNC machining center (turning, drilling, milling) | – | – | – | – | Dresden |
| Blasting cabin | – | – | Length 8 m x width 4 m x height 4 m | – | Dresden |
| Painting cabin | – | – | Length 8 m x width 4 m x height 4 m | – | Dresden |
| Preservation system (sandblasting and paint coating) | – | – | – | – | Dresden |
Additional services
Quality and approvals
Quality assurance includes visual, dye penetrant, X-ray, magnetic particle and ultrasonic testing as well as pressure, strength and leak tests; supplemented by third-party inspections. The QM system is certified according to ISO 9001:2015 (DEKRA).
| Evidence | Dresden |
|---|---|
| ISO 9001:2015 | |
| AD 2000 Merkblatt HP 0 | |
| EN ISO 3834-2 | |
| EN 13445-4 (AD 2000 HP100 R) | |
| DIN EN 1090-1/-2 |
Tradition since 1836
- 1836
Founding of the Aktien-Maschinenbaugesellschaft Dresden-Übigau by Professor Johann Andreas Schubert at today's site
- 1837
Construction of the first German steam locomotive 'Saxonia' and the steamship 'Königin Maria'
- 1992
Start of manufacturing and assembly of hydropower turbines in the then steam boiler construction
- 2000
Founding of HSI Turbinenstahlbau Dresden-Übigau GmbH
- 2025
Successful customer audit, reclassification as A-supplier (01.09.2025)