Stainless steel vessels, heat exchangers, heat recovery systems and custom-made products from our own production in Schardenberg.
Heger Edelstahl Ges.m.b.H.
SchardenbergNew on Amplifa
About Heger Edelstahl
Heger Edelstahl GesmbH, based in Schardenberg (Upper Austria), has specialized in stainless steel processing for industrial plant engineering since 1989. The company develops and manufactures heat recovery systems, vessels and pressure vessels, heat exchangers, as well as machinery and custom-made products in stainless steel – from process engineering design and 3D construction to assembly, commissioning and service. Its own production facility with 2,000 m² of production space includes, among other things, a waterjet cutting machine, a CNC press brake, a longitudinal seam welding machine for vessels up to Ø 4,000 mm, welding robots and its own pickling plant. Production is carried out in V2A (1.4301), V4A (1.4404/1.4571), special alloys such as 1.4539, 1.4435 and 1.4462, as well as mild steel and boiler plate in accordance with AD2000 and PED 2014/68/EU. Customers come from biomass and energy technology, the food, chemical and process industries, environmental and wastewater engineering, and mechanical and plant engineering.
- Site
- A-4784 Schardenberg
- Processes
- Vessel & plant engineering (stainless steel vessels, pressure vessels cat. I–IV, storage tanks,, Heat exchanger & apparatus engineering (smooth-tube heat exchangers, double-tube heat exchangers,, Heat recovery systems (flue gas condensation, vapour extraction, waste heat utilization), Mechanical engineering & custom-made products (drum filters, scrubbers, rotary valves, fans,, Waterjet cutting, TIG welding, MIG welding, MAG welding
- Materials
- Stainless steel V2A, Stainless steel V4A, Stainless steel 1.4571, Stainless steel 1.4404, Stainless steel 1.4539, Stainless steel 1.4435, Stainless steel 1.4462, Special alloys
- Certificates
- ISO 9001, ISO 14001, EN ISO 3834-2 (certified welding operation), ÖNORM M7812 Quality Class 1, AD2000 Data Sheet HP0 (Pressure Equipment PED 2014/68/EU), §14 Boiler Act (manufacturer operation), EN 1090 Factory Production Control, DDG Certificate Pressure Equipment, EN ISO 3834-2, AD2000 HP0 (PED 2014/68/EU), §14 Boiler Act, EN 1090
- Founded
- 1989
- Industries
- Biomass and energy plants, Food industry, Environmental and wastewater engineering, Chemical and process industries, Mechanical and plant engineering, Wood-based materials industry
- 01
Engineering: process engineering design, calculation according to AD2000,
- 02
Cutting (waterjet, plasma cutting, guillotine shear, sawing)
- 03
Sheet metal working and forming (rolling, bending, flanging, punching, deep
- 04
Welding (TIG, MIG, MAG, welding automaton, welding robot)
- 05
Machining (turning, milling, drilling)
- 06
Pickling and passivating in our own pickling plant
- 07
Testing and documentation (X-ray, dye penetrant testing, pressure testing)
- 08
Assembly, commissioning, maintenance and after-sales service
Materials & Processes
Stainless steel V2A
Standard material for vessels, weighing vessels and filter vessels in the food and process industries.
Stainless steel V4A
For product-contact parts and pressure vessels with increased corrosion requirements.
Stainless steel 1.4571
Used in heat exchanger tubes, storage tanks and gravel filters.
Stainless steel 1.4539
Corrosion-resistant material for smooth-tube heat exchangers in flue gas applications.
Stainless steel 1.4435
For apparatus in the chemical and process engineering sectors.
Stainless steel 1.4462 (duplex)
For salt drying plants and highly corrosive media.
Mild steel & boiler plate
Processed in a separate hall for plant and apparatus parts made of structural steel.
Brass
Used for nozzles, e.g. 1.688 nozzles in a quenching machine.
Locations
Schardenberg
ATHeadquarters, engineering, production, warehouse, assembly
- Part weight / size
- Components up to 4,780 kg (documented), balancing 3–1,500
- Lot size
- Single parts and small series, customer-specific systems
- Materials
- Stainless steel 1.4301, 1.4404, 1.4571, 1.4539, 1.4435, 1.4462, mild steel, boiler plate, brass
Components & Products
Inside the production
Industries
Processes & technical limits
| Processes | Tolerance | Max. part | Weight | Lot size | Materials |
|---|---|---|---|---|---|
| Vessel & plant engineering (stainless steel vessels, pressure vessels cat. I–IV, storage tanks,Joining | – | – | – | – | Stainless steel, V2A, V4A, Special alloys, Boiler plate, Mild steel |
| Heat exchanger & apparatus engineering (smooth-tube heat exchangers, double-tube heat exchangers,Joining | – | – | – | – | Stainless steel 1.4539, Stainless steel 1.4435, Stainless steel 1.4571, Stainless steel 1.4462 |
| Heat recovery systems (flue gas condensation, vapour extraction, waste heat utilization)Engineering | – | – | – | – | Stainless steel |
| Mechanical engineering & custom-made products (drum filters, scrubbers, rotary valves, fans,Assembly | – | – | – | – | Stainless steel, Stainless steel 1.4571, Brass |
| Waterjet cuttingMachining | – | – | – | – | Stainless steel |
| TIG weldingJoining | – | – | – | – | Stainless steel |
| MIG weldingJoining | – | – | – | – | Stainless steel |
| MAG weldingJoining | – | – | – | – | Stainless steel, Mild steel, Boiler plate |
| Flux-cored weldingJoining | – | – | – | – | Stainless steel |
| Manual metal arc weldingJoining | – | – | – | – | Stainless steel |
| Spot weldingJoining | – | – | – | – | Stainless steel |
| Welding robot automatic welding (longitudinal and circumferential seams)Joining | – | – | – | – | Stainless steel |
| Rolling/bending of sheets (4-roll bending machine L=2,000 mm)Forming | – | 2,000 mm | – | – | Stainless steel, Mild steel |
| Press braking (TRUMPF press brake L=3,200 mm / 230 t; further press brake L=3,600 mm)Forming | – | 3,600 mm | – | – | Stainless steel |
| Profile rolling (profile rolling machine)Forming | – | – | – | – | Stainless steel |
| FlangingForming | – | – | – | – | Stainless steel |
| Punching (universal punching machine)Forming | – | – | – | – | Stainless steel |
| Eccentric presses (press braking and deep drawing)Forming | – | – | – | – | Stainless steel |
| Cutting with guillotine shear L=3,000 mmMachining | – | 3,000 mm | – | – | Stainless steel |
| Plasma cuttingMachining | – | – | – | – | Stainless steel, Mild steel |
| Band sawsMachining | – | – | – | – | Stainless steel |
| Tube cuttingMachining | – | – | – | – | Stainless steel |
| Turning (universal lathe 250x1,500 mm)Machining | – | 1,500 mm | 3 kg – 1,500 kg | – | Stainless steel |
| Milling (universal milling machine 900x500 mm)Machining | – | 500 mm × 900 mm | – | – | Stainless steel |
| Drilling (small and large radial drilling machines)Machining | – | – | – | – | Stainless steel |
| Pickling and passivatingSurface | RA < 0.8 µm (ground | – | – | – | Stainless steel |
| Balancing (3 kg – 1,500 kg, up to Ø 3,000 mm)Testing | – | Ø 3,000 mm | 3 kg – 1,500 kg | – | Stainless steel |
| Welder qualification according to ISO 9606-1 / non-destructive testing (X-ray, dye penetrantTesting | – | – | – | – | Stainless steel |
| Engineering (process engineering design, calculation according to AD2000, 3D construction withEngineering | – | – | – | – | – |
| Assembly, commissioning and service/maintenance of plantsAssembly | – | – | – | – | Stainless steel |
22 Anlagen & Maschinen
| Machine | Manufacturer / model | Quantity | Working area | Year built | Site |
|---|---|---|---|---|---|
| Waterjet cutting machine | – | 1 | – | 2011 | Schardenberg |
| Longitudinal seam welding machine | – | 1 | Vessels up to Ø 4,000 mm | 2020 | Schardenberg |
| 4-roll bending machine | – | 1 | L=2,000 mm | – | Schardenberg |
| CNC press brake | TRUMPF | 1 | L=3,200 mm / 230 tonnes | 2017 | Schardenberg |
| Press brake | – | 1 | L=3,600 mm | – | Schardenberg |
| Profile rolling machine | – | – | – | – | Schardenberg |
| Flanging machine | – | – | – | – | Schardenberg |
| Universal punching machine | – | – | – | – | Schardenberg |
| Eccentric press | – | – | – | – | Schardenberg |
| Welding automaton for longitudinal and circumferential seams | – | – | – | – | Schardenberg |
| Welding robot | – | 1 | – | 2013 | Schardenberg |
| Universal lathe | – | 1 | 250x1,500 mm | – | Schardenberg |
| Universal milling machine | – | 1 | 900x500 mm | – | Schardenberg |
| Radial drilling machines, small and large | – | 2 | – | – | Schardenberg |
| Pickling plant (pickling and passivating) | – | 1 | – | – | Schardenberg |
| Wastewater treatment plant | – | 1 | – | – | Schardenberg |
| Pickling gas scrubber (patented vortex scrubber) | Heger (in-house development) | 1 | – | – | Schardenberg |
| Guillotine shear | – | 1 | L = 3,000 mm | – | Schardenberg |
| Plasma cutting device | – | – | – | – | Schardenberg |
| Band saw | – | – | – | – | Schardenberg |
| Tube cutting machine | – | – | – | – | Schardenberg |
| Plate bending machine | – | – | – | 2019 | Schardenberg |
Additional services
Reference customers
Quality & Certifications
Production is carried out as a certified welding operation according to EN ISO 3834-2 with welder qualification according to ISO 9606-1; non-destructive testing (X-ray, dye penetrant testing, pressure testing) as well as balancing of 3 to 1,500 kg are performed in-house. The company is certified according to ISO 9001 and ISO 14001 and approved for pressure equipment manufacturing according to AD2000 HP0 and EN 1090.
| Evidence | Schardenberg |
|---|---|
| ISO 9001 | |
| ISO 14001 | |
| EN ISO 3834-2 | |
| ÖNORM M7812 Quality Class 1 | |
| AD2000 HP0 (PED 2014/68/EU) | |
| §14 Boiler Act | |
| EN 1090 | |
| DDG Certificate Pressure Equipment |
History
- 1989
Company founded by Franz Heger
- 1994
Expansion of the production facility
- 1995
Gerhard Harant takes over the management of the company
- 2001
Certification according to ISO 9001:2008
- 2004
Acquisition and move into new company building: 17,000 m² total area, 1,600 m² production, 4,000 m² asphalted storage area
- 2008
Occupancy of the new office building (July)
- 2011
Expansion of the production hall by a 400 m² extension; installation of a waterjet cutting machine; DI Robert Pretzl joins as second managing director
- 2013
Installation of welding robot; expansion of production space with a free-standing hall for mild steel and boiler plate
- 2015
Expansion of storage area by 1,500 m²; renewal of approvals (§14 Boiler Act, EN ISO 3834-2, AD2000 HP0, EN 1090)
- 2017
Change of management; installation of CNC press brake
- 2018
Renovation of the pickling hall
- 2019
Conversion of the office rooms; renewal of the machine park (plate bending machine, longitudinal seam welding system)
- 2020
Installation of a longitudinal seam welding machine for vessels up to Ø 4,000 mm
- 2021
Construction of the company's own heating plant
- 2023
Installation of a 132.6 kWp PV system
- 2025
Change of management: departure of Ing. Bernd Wernbacher; joining of Thomas Mayer and Ing. Sebastian Mayr