Manufacturer of assembled hydraulic hose and pipe lines as well as special components for mobile machinery and wind energy.
Interhydraulik Gesellschaft für Hydraulik-Komponenten mbH
Selm · Wilhelmshaven · Vettelschoß · Xiamen (CN) · USA · IndiaNew on Amplifa
About Interhydraulik
Interhydraulik GmbH, based in Selm, is a specialist in hydraulic connection technology. The company manufactures assembled hydraulic hose lines (low to ultra-high pressure, thermoplastic, suction and industrial hose lines), hydraulic pipe lines up to 100 x 2 mm, hydraulic accessories as well as special components such as manifolds, collectors, suction fittings and welded assemblies. The welding production is certified to DIN EN ISO 3834-3; since 2024 a new building for metal fabrication has been available. In addition to manufacturing, Interhydraulik offers design services ranging from application engineering and prototype construction through to production readiness, delivery of pre-assembled assemblies and pre-commissioned kits, as well as a spare parts service. The products are used, among other things, in construction machinery, agricultural machinery, commercial vehicles, forklifts, cranes, lifting and conveying technology and wind turbines. More than 200 employees produce on a 35,000 m² factory site at the former Zeche Hermann colliery; further locations exist in Wilhelmshaven, Vettelschoß, China, the USA and India.
- Site
- Selm
- Processes
- Assembled hydraulic hose lines (low to ultra-high pressure), Thermoplastic hose lines, Suction hose lines, Industrial hose lines, Assembled hydraulic pipe lines, Low-pressure pipe lines, Hydraulic accessories (screw fittings, couplings, ball valves, clamps, valves, hose protection), Special components (manifolds, collectors, suction fittings, welded assemblies)
- Materials
- Thermoplastic (hose lines), Steel (pipe lines & welded assemblies)
- Certificates
- ISO 9001:2015, ISO 14001:2015, ISO 45001:2023, DIN EN ISO 3834-3, ISO 9001, ISO 14001, ISO 45001, EN 1090, DIN EN ISO 3834-3 (welding)
- Founded
- 1984
- Employees
- 200+
- Industries
- Construction machinery, Agricultural machinery, Commercial vehicles, Forklifts, Cranes, Lifting and conveying technology
- 01
Application engineering & requirement definition
- 02
Design & prototype production
- 03
Hose and pipe line assembly
- 04
Welding production / metal fabrication
- 05
Assembly of components
- 06
Pre-commissioning & demand-based delivery
Materials & Processes
Thermoplastic (hose lines)
Material of the thermoplastic hose lines for hydraulic applications.
Steel (pipe lines & welded assemblies)
Pipe lines up to 100 x 2 mm and welded special components made of metal.
Locations
Selm
DEHeadquarters / Production
- Materials
- Thermoplastic, Metal
- Hose line assembly
- Pipe line fabrication
- Welding production (DIN EN ISO 3834-3)
- Metal fabrication (new building 2024)
Wilhelmshaven
DEService branch
Vettelschoß
DEService branch
Xiamen
CNSubsidiary (Xiamen INTERHYDRAULIK Components Co. Ltd.)
USA
USBranch office
India
INBranch office
Components & Products
Inside the production
Industries
Processes & technical limits
| Processes | Tolerance | Max. part | Weight | Lot size | Materials |
|---|---|---|---|---|---|
| Assembled hydraulic hose lines (low to ultra-high pressure)Joining | – | – | – | – | – |
| Thermoplastic hose linesJoining | – | – | – | – | – |
| Suction hose linesJoining | – | – | – | – | – |
| Industrial hose linesJoining | – | – | – | – | – |
| Assembled hydraulic pipe linesJoining | – | – | – | – | – |
| Low-pressure pipe linesJoining | – | – | – | – | – |
| Hydraulic accessories (screw fittings, couplings, ball valves, clamps, valves, hose protection)Joining | – | – | – | – | – |
| Special components (manifolds, collectors, suction fittings, welded assemblies)Joining | – | – | – | – | – |
| Welded assemblies (welding production certified to DIN EN ISO 3834-3)Joining | – | – | – | – | – |
| Metal fabrication (new building 2024)Joining | – | – | – | – | – |
| Design services: development from prototype to production readinessEngineering | – | – | – | – | – |
| Assembly of assemblies and delivery of pre-assembled assemblies (incl. third-party products such asAssembly | – | – | – | – | – |
| Optimisation of components and assembly processesEngineering | – | – | – | – | – |
| Application engineering: requirement definition, production documentation, in-house prototypeEngineering | – | – | – | – | – |
| Spare parts serviceAssembly | – | – | – | – | – |
| Application of additional identification numbers for faster assemblyAssembly | – | – | – | – | – |
| Technical cleanliness / component cleanliness as a central quality factor of productionSurface | – | – | – | – | – |
Additional services
Quality & Certification
Interhydraulik is certified to DIN ISO 9001:2015, DIN ISO 14001:2015, DIN ISO 45001:2023 and DIN EN ISO 3834-3 (welding). Technical cleanliness, in particular the cleanliness of components, is regarded as a central quality factor of production.
| Evidence | Selm |
|---|---|
| ISO 9001 | |
| ISO 14001 | |
| ISO 45001 | |
| EN 1090 | |
| DIN EN ISO 3834-3 (welding) |
History
- 1984
Founded in Lüdinghausen by Wolfgang Hirsch
- 1994
Expansion of the Lüdinghausen site
- 2001
Relocation from Lüdinghausen to Selm at the former Zeche Hermann colliery; management expanded to include Roland Wolske and Claudius Hirsch
- 2005
Expansion of the site to 35,000 m²
- 2009
Foundation of Xiamen INTERHYDRAULIK Components Co. Ltd. in China
- 2012
Establishment of branch offices in the USA and India
- 2014
Commissioning of the Wilhelmshaven service branch
- 2015
Membership in the VDMA
- 2016
Introduction of the Exovation® hose product line
- 2018
Commissioning of the Vettelschoß service branch
- 2019
35th company anniversary
- 2024
40th company anniversary and new building for metal fabrication