
Manufacture of hydraulic hose lines, power units, assemblies and pipe bends, as well as technical trading and hydraulic service

RAUH-Hydraulik GmbH
New on Amplifa
System partner for hydraulics and pneumatics
RAUH-Hydraulik GmbH, founded in 1973, is an owner-managed system partner for hydraulics and pneumatics headquartered in Bamberg. The core of the company's own manufacturing is the assembly of hydraulic hose lines in series and to customer specification; cumulatively, well over one million meters of assembled hose lines have been produced to date. In addition, the company manufactures hydraulic power units, modules, assemblies and pipe bends, produces its own piston rods and cylinder tubes for cylinder repair, and offers engineering including CAD planning with 3-D data sets. As a Parker Certified Accumulator Service Center and authorized Tronair Service Center (GSE, aviation ground support), repair, testing and maintenance round out the service portfolio. Production takes place at 14 manufacturing sites, including the production hall opened in Trosdorf in 2013; in total, a network of 17 own locations in Germany is available.
- Site
- Bamberg
- Processes
- Manufacture of hydraulic hose lines (hose assembly), Series production of hydraulic hose lines for OEM customers, Power unit construction, Manufacture of assemblies and modules, Manufacture of pipe bends, Manufacture of hydraulic and pneumatic components (from power unit to cylinder), In-house manufacture of piston rods and cylinder tubes, Cylinder repair / cylinder overhaul
- Materials
- Hydraulic hose (various types, 930 articles), Steel (fittings, adapters, screw connections), Stainless steel (flanges, ball valves, couplings), Hydraulic hose, Steel, Stainless steel
- Certificates
- DIN EN ISO 9001:2015, AEO certificate, ISO 9001, Other (AEO certificate DE AEOC 101167)
- Founded
- 1973
- Employees
- 250+
- Industries
- Agriculture, Forestry, Industry/mechanical engineering, Maritime, Municipal, Technical trading
- 01
Consulting and engineering/CAD planning
- 02
Technical trading procurement (connection and drive technology)
- 03
Hose assembly and series production
- 04
Power unit and assembly manufacturing
- 05
Testing and documentation (RSID)
- 06
Logistics (Kanban, system supply, just-in-time)
- 07
Commissioning, maintenance and hose management
Materials and processes
Hydraulic hose
Around 930 hose articles in the product range form the basis of hose line assembly.
Steel
Material for fittings, adapters and screw connections in connection technology.
Stainless steel
Used for flanges, ball valves and couplings.
Locations

Bamberg
DEHeadquarters
- Workshop hose crimping presses
- Mobile hose crimping presses

Bischberg/Trosdorf
DEProduction and logistics center
- Lot size
- Small series to large series (OEM series production)
- Materials
- Hydraulic hose, steel, stainless steel
- Production hose crimping presses
- Cutting machine S-CUT 22
- Cutting machine S-CUT 55
- Peeling machines HST 50
- Crimping systems
- Ultra Clean hose and pipe cleaning systems
- Hose reel HR 7
- Nipple insertion device EHN 50
Gera
DEBranch office
Hamburg
DEBranch office
Munich
DEBranch office
Nuremberg
DEBranch office
Components and products



Inside the production





Industries
Processes & technical limits
| Processes | Tolerance | Max. part | Weight | Lot size | Materials |
|---|---|---|---|---|---|
| Manufacture of hydraulic hose lines (hose assembly)Joining | – | – | – | – | – |
| Series production of hydraulic hose lines for OEM customersJoining | – | – | – | – | – |
| Power unit constructionAssembly | – | – | – | – | – |
| Manufacture of assemblies and modulesAssembly | – | – | – | – | – |
| Manufacture of pipe bendsForming | – | – | – | – | – |
| Manufacture of hydraulic and pneumatic components (from power unit to cylinder)Assembly | – | – | – | – | – |
| In-house manufacture of piston rods and cylinder tubesMachining | – | – | – | – | – |
| Cylinder repair / cylinder overhaulAssembly | – | – | – | – | – |
| Piping and hose routing workAssembly | – | – | – | – | – |
| Hydraulic accumulators: repair, gas pre-filling and testing according to DGRLTesting | – | – | – | – | – |
| Hydraulic accumulator recertification, maintenance, pre-loading, replacement of bladders and pistonTesting | – | – | – | – | – |
| Installation and conversion of hydraulic systemsAssembly | – | – | – | – | – |
| Maintenance, servicing and repair of hydraulic systemsAssembly | – | – | – | – | – |
| Planning and design of hydraulic systemsEngineering | – | – | – | – | – |
| Engineering/planning CAD incl. 3-D data setsEngineering | – | – | – | – | – |
| UVV inspections on hydraulic lifting equipment and industrial trucksTesting | – | – | – | – | – |
| Functional testing of hydraulic systemsTesting | – | – | – | – | – |
| Oil and filter changesAssembly | – | – | – | – | – |
| Hose management / hose replacement service (identification, classification, replacement)Assembly | – | – | – | – | – |
| Tronair GSE service: checks, load tests, maintenance, repair, overhauling, oil service (Skydrol)Assembly | – | – | – | – | – |
| Calibration of gauges, tools, wrenches (with TÜV)Testing | – | – | – | – | – |
12 Anlagen & Maschinen
| Machine | Manufacturer / model | Quantity | Working area | Year built | Site |
|---|---|---|---|---|---|
| Production hose crimping presses | – | – | – | – | – |
| Workshop hose crimping presses | – | – | – | – | – |
| Mobile hose crimping presses | – | – | – | – | – |
| Low-pressure hose crimping presses | – | – | – | – | – |
| Cutting machine S-CUT 22 | S-CUT 22 - FC 32 | – | – | – | – |
| Cutting machine S-CUT 55 | S-CUT 55 (7.5 kW, without smoke extraction) | – | – | – | – |
| Peeling machines / hand peeling devices (HST 50, SG-HK) | HST 50; ASW 06–25 | – | – | – | – |
| Crimping systems | – | – | – | – | – |
| Ultra Clean hose and pipe cleaning systems | – | – | – | – | – |
| Hose reel HR 7 | HR 7 | – | – | – | – |
| Nipple insertion device EHN 50 | EHN 50 | – | – | – | – |
| Mobile filter systems | – | – | – | – | – |
Additional services
Reference customers
Quality
Since 1993 the company has been certified to DIN EN ISO 9001 by TÜV Süd, being one of the first hydraulic companies ever. Traceability of the hose lines is ensured via the RSID system (RAUH Hose IDent) with documented coding and labeling; hydraulic accumulators are tested according to DGRL (Pressure Equipment Directive).
| Evidence | Bischberg/Trosdorf |
|---|---|
| ISO 9001 | |
| Other (AEO certificate DE AEOC 101167) |
History
- 1973
Company founding
- 1993
First certification to DIN EN ISO 9001 by TÜV Süd – as one of the first hydraulic companies
- 2013
New production hall for OEM customers and series production of hydraulic hose lines at the Trosdorf site
- 2018
Officially authorized Tronair Service Center since the end of 2018