Coupling systems for fluids, air and gases as well as manufacturing services from prototype to high-volume production
HENN Industrial Group GmbH & Co KG
Dornbirn (AT) · Waiblingen (DE) · Mönchweiler (DE) · Heinsdorfergrund (DE) · Kanchipuram District (IN) · Pune (IN) · Grand Rapids, MI (US)New on Amplifa
About the HENN Connector Group
HENN Industrial Group GmbH & Co KG, headquartered in Dornbirn (Austria), is an industrial group with two segments: HENNconnectors develops and manufactures high-tech connection systems (couplings) for fluids, air and gases made of metal and plastic; HENNgineered bundles manufacturing service providers for the production of components from product development through prototyping to small- and high-volume series. The range of processes includes metal 3D printing (SLM) and plastic 3D printing, CNC machining including 5-axis, plastic injection molding, metal deep drawing, vacuum casting, die-sinking EDM, wire EDM and toolmaking. Materials processed include stainless steel (1.4301/1.4404), aluminum, steel/sheet steel, brass, copper, titanium and plastics. Customers come from automotive, mechanical engineering, automation, aerospace, drinking water/building services, food & beverage, pharmaceuticals and medical technology. The group employs around 390 staff at seven locations in Austria, Germany, India and (until 2026) China and generated revenue of €157 million in 2025.
- Site
- Dornbirn
- Processes
- Metal 3D printing (SLM/Selective Laser Melting), Plastic 3D printing, Vacuum casting, Plastic injection molding, 2-component injection molding, Overmolding, Internal Gas Pressure (gas injection process), CNC machining (milling/turning) incl. 5-axis with automation
- Materials
- Stainless steel 1.4301/07, Stainless steel 1.4404, Brass, Aluminum, Stainless steel (deep drawing), Aluminum (deep drawing), pre-coated sheet, Non-ferrous metals
- Certificates
- ISO 9001:2015, ISO 14001:2015, ISO 45001:2023, ISO 50001:2018, IATF 16949:2016, ISO 9001, IATF 16949, ISO 14001, ISO 45001, ISO 50001
- Founded
- 1990
- Employees
- 390
- Industries
- Automotive (combustion, electric, hybrid, fuel cell), Mechanical engineering, Automation technology / robotics, Aerospace, Drinking water / building installation technology, Food & Beverage
- 01
Consulting, Design & Simulation
- 02
Tool and Mold Making
- 03
Prototype & Pilot Series Production
- 04
Industrialization: Small to High Volume
- 05
Assembly & Subassembly Manufacturing
- 06
3D Quality Inspection
- 07
After-Sales / Spare Parts
Materials & Processes
Stainless steel 1.4301/07
Corrosion-resistant compression-fitting unions (INOXILINE) for demanding operating equipment; also available in 1.4404 on request.
Stainless steel 1.4404
Stainless steel used upon request for more aggressive media and environmental conditions.
Brass
Material for high-quality connections in closed and open cooling water circuits (LIQUIDLINE).
Aluminum
Used in deep drawing, in toolmaking (mold inserts) and for cooling water connections.
Sheet steel / pre-coated sheet
Around 5,000 t of sheet steel are processed annually in Heinsdorfergrund into deep-drawn parts.
Copper and copper alloys
Material for connections as well as electrode material in die-sinking EDM.
Titanium
Conductive material precisely machined by die-sinking EDM.
Carbide (hard metal)
Material machinable by die-sinking EDM for the highest precision requirements.
Plastic
Material for injection molding (incl. 2-shot, overmolding, internal gas pressure), vacuum casting and plastic 3D printing.
FKM/Viton seals
High-quality sealing materials incl. FDA-compliant low-temperature variants for fittings.
Locations
Dornbirn
ATHENN headquarters and technical competence center (coupling systems)
- Materials
- Metal, plastic
- HENN assembly machines (crimping method)
Waiblingen
DEEISELE – Development & production of metal connections
- Materials
- Stainless steel, brass, aluminum
Mönchweiler
DEHENNgineered – Competence center for additive manufacturing, prototypes & small series
- Part weight / size
- Components up to 320 × 320 mm (die-sinking EDM)
- Lot size
- Quantity 1 to series
- Materials
- Metal, plastic
- 5 SLM metal 3D printers
- 2 plastic 3D printers
- 7 vacuum casting machines (up to 1,000 mm)
- 16 CNC machining centers incl. 5-axis automation
- 3 die-sinking EDM centers, 2 wire EDM machines
- 8 Arburg injection molding machines up to 2,500 kN
- Zeiss Comet 3D scanner, 2 Zeiss tactile measuring systems
- Laser welding, surface grinding, blasting, ColdJet, ultrasonic cleaning
Heinsdorfergrund
DEHENNgineered – Deep-drawn parts for automotive & electrical industry (incl. Plant 2)
- Part weight / size
- over 50 million deep-drawn parts/year, approx. 5,000 t
- Lot size
- High volume
- Materials
- Sheet metal, stainless steel, aluminum, pre-coated sheet, non-ferrous metals
- 10 deep-drawing presses 63–300 t
- 2 prototype presses
- 5 toolmaking machining facilities
Blankenhain
DEHENNgineered – Injection molding & toolmaking (12,000 m²); sold to Accursia Capital as of 08.09.2026
- Lot size
- High volume
- Materials
- Plastic
- 14 injection molding machines
- 10 assembly and hot-plate welding systems
- Laser marking
Taicang (Jiangsu)
CNHENNgineered Plastics Suzhou – Injection molding (4,000 m²); sold to Accursia Capital as of 08.09.2026
- Lot size
- High volume
- Materials
- Plastic
- 60 injection molding machines 25–550 t
- Conditioning system
- Assembly & packaging automation
Kanchipuram District / Pune
INHENN Indo-Pacific: Sales and Engineering Center
Grand Rapids, MI
USEISELE subsidiary USA
Industries
Processes & technical limits
| Processes | Tolerance | Max. part | Weight | Lot size | Materials |
|---|---|---|---|---|---|
| Metal 3D printing (SLM/Selective Laser Melting)Additive | – | – | – | – | Metal, Aluminum, Steel |
| Plastic 3D printingAdditive | – | – | – | – | Plastic |
| Vacuum castingPlastic | – | 1000 mm | – | – | Plastic |
| Plastic injection moldingPlastic | – | – | – | – | Plastic |
| 2-component injection moldingPlastic | – | – | – | – | Plastic |
| OvermoldingPlastic | – | – | – | – | Plastic |
| Internal Gas Pressure (gas injection process)Plastic | – | – | – | – | Plastic |
| CNC machining (milling/turning) incl. 5-axis with automationMachining | – | – | – | – | Metal |
| Metal deep drawingForming | – | – | – | – | Sheet metal/sheet, Stainless steel, Aluminum, pre-coated sheet, Non-ferrous metals, Steel (sheet steel) |
| StampingForming | – | – | – | – | Metal |
| Die-sinking EDM (EDM)Machining | up to VDI 18 (Ra 0.8) | 320 mm × 320 mm | – | 1 – Series | Carbide, Steel, Aluminum, Copper alloys, Titanium |
| Wire EDMMachining | – | – | – | – | Metal |
| Toolmaking / mold making (injection molds, milling, die-sinking EDM, wire EDM,Engineering | – | – | – | – | Aluminum, Steel |
| Laser)Additive | – | – | – | – | Metal, Plastic |
| Welding (laser)Joining | – | – | – | – | Metal, Plastic |
| Hot-plate welding (assembly)Joining | – | – | – | – | Plastic |
| Laser marking/labelingSurface | – | – | – | – | – |
| Blasting (glass bead and sand blasting)Surface | – | – | – | – | – |
| Dry ice blasting (ColdJet)Surface | – | – | – | – | – |
| Ultrasonic cleaningSurface | – | – | – | – | – |
| Micro troweling (surface smoothing)Surface | – | – | – | – | – |
| Surface grindingMachining | – | – | – | – | Metal |
| SawingMachining | – | – | – | – | Metal |
| Assembly and packaging automationAssembly | – | – | – | – | – |
| Consulting, design & simulation / product developmentEngineering | – | – | – | – | – |
| Polyamide castingPlastic | – | – | – | – | Polyamide |
| 3D quality inspection (Zeiss Comet 3D scanning, tactile measurement, roughness depth measurement,Inspection | – | – | – | – | – |
17 Anlagen & Maschinen
| Machine | Manufacturer / model | Quantity | Working area | Year built | Site |
|---|---|---|---|---|---|
| Selective Laser Melting (SLM) metal 3D printer | – | 5 | – | – | Mönchweiler, DE |
| Plastic 3D printer | – | 2 | – | – | Mönchweiler, DE |
| Vacuum casting machine | – | 7 | up to 1,000 mm length | – | Mönchweiler, DE |
| CNC machining center (incl. 5-axis with automation) | – | 16 | – | – | Mönchweiler, DE |
| Die-sinking EDM center (die-sinking EDM) | – | 3 | Component size up to 320 x 320 mm | – | Mönchweiler, DE |
| Wire EDM machine | – | 2 | – | – | Mönchweiler, DE |
| Arburg Allrounder plastic injection molding machine (up to 2500 kN clamping force) | Arburg Allrounder | 8 | – | – | Mönchweiler, DE |
| Deep-drawing press | – | 10 | 63 t to 300 t (630 kN – 3,000 kN) | – | Heinsdorfergrund, DE |
| Prototype press | – | 2 | – | – | Heinsdorfergrund, DE |
| Toolmaking with machining processes | – | 5 | – | – | Heinsdorfergrund, DE |
| Plastic injection molding machine (25 to 550 t) | – | 60 | – | – | Heinsdorfergrund, DE |
| Plastic injection molding machine | – | 14 | – | – | Blankenhain, DE |
| Assembly and hot-plate welding system | – | 10 | – | – | Blankenhain, DE |
| Zeiss Comet 3D scanner (quality assurance) | Zeiss Comet | 1 | – | – | Mönchweiler, DE |
| Zeiss tactile measuring system | Zeiss | 2 | – | – | Mönchweiler, DE |
| Roughness depth gauge | – | 1 | – | – | Mönchweiler, DE |
| Laser long-term measurement | – | 1 | – | – | Mönchweiler, DE |
Additional services
Reference customers
Quality & Certifications
Quality assurance is performed, among other methods, with Zeiss Comet 3D scanning, two Zeiss tactile measuring systems, a roughness depth gauge and optical measuring systems. The locations are certified according to ISO 9001; Heinsdorfergrund additionally according to IATF 16949, ISO 14001, ISO 45001 and ISO 50001.
| Evidence | Dornbirn | Waiblingen | Mönchweiler | Heinsdorfergrund |
|---|---|---|---|---|
| ISO 9001 | ||||
| IATF 16949 | ||||
| ISO 14001 | ||||
| ISO 45001 | ||||
| ISO 50001 |
History
- 1990
Foundation of Henn GmbH & Co KG; initial focus on the automotive industry with the ShortClip development
- 1996
First series deployment at Audi; Porsche and Mercedes followed in 1998
- 2011
Martin Ohneberg takes over Henn GmbH & Co KG as majority owner and becomes managing director
- 2018
Acquisition of UFT Produktion GmbH (metal deep-drawing specialist) and TKW Molding GmbH (plastic injection molder)
- 2021
Acquisition of Eisele (Waiblingen, founded 1939) including US subsidiary in Grand Rapids
- 2022
Revenue growth from €19 million (2010) to €137 million
- 2023
Merger of UFT, TKW and VMR into HENNgineered
- 2025
Revenue of €157 million with 390 employees worldwide
- 2026
Sale of the Blankenhain and Taicang locations to Accursia Capital as of 08.09.2026