Manufacture of cylinder tubes for hydraulic cylinders by skiving/roller burnishing, roller burnishing and honing
Langer Hydraulik GmbH
42653 Solingen (Piepersberg 18)New on Amplifa
About Langer Hydraulik
Langer Hydraulik GmbH is a specialized manufacturing company based in Solingen that has focused since 1995 on the production of cylinder tubes for hydraulic cylinders. The value chain comprises skiving/roller burnishing, roller burnishing and honing (including blind bores with cross-hatch pattern) as well as sawing and further processing on request; contract machining is offered. Materials processed include carbon steel tubes to EN 10305-1/2 and EN 10216-1, stainless steel tubes to EN 10216-5, and aluminum tubes with inner diameters of 30 to 600 mm, including imperial sizes. Standard tolerances are ISO H8/H9 at a surface roughness of Ra max. 0.3 µm. With three roller burnishing machines and one honing machine, approximately 250,000 m of cylinder tubes are produced annually; production lengths reach up to 18,000 mm. The company, certified to DIN EN ISO 9001:2015, supplies hydraulic cylinder manufacturers in the Bergisches Städtedreieck region and beyond.
- Site
- Solingen
- Processes
- Skiving/roller burnishing, Roller burnishing, Honing (including blind bores, cross-hatch pattern), Contract machining of cylinder tubes, Sawing / further processing, Honing (including blind bores), Contract machining, Further processing on request
- Materials
- Carbon steels (seamless/welded precision tubes), Stainless steel (cylinder tubes), Aluminum (cylinder tubes), Skiving/roller burnishing, Roller burnishing, Honing (including blind bores), Carbon steel (seamless), Carbon steel (welded)
- Certificates
- ISO 9001:2015, ISO 9001
- Founded
- 1995
- Employees
- 15
- Industries
- Hydraulic cylinder manufacturers / hydraulics industry
- 01
Incoming goods inspection of raw material (HPZ tubes)
- 02
Sawing / cutting to length
- 03
Skiving/roller burnishing or roller burnishing
- 04
Honing (on request)
- 05
Final inspection
- 06
Shipping
Materials and Processes
Skiving/roller burnishing
Chip-removing fine machining of the tube inner surface to produce sealing running surfaces for hydraulic cylinders.
Roller burnishing
Radial pressing of burnishing rollers against the tube inner surface produces the required surface roughness of Ra 0.2–0.3 µm.
Honing (including blind bores)
Creates a cross-hatch pattern with improved tribological properties and bore quality, also as a basis for chrome-plated inner surfaces.
Carbon steel (seamless)
Seamless precision tubes as starting material for cylinder tubes.
Carbon steel (welded)
Welded precision tubes for cylinder tubes in standard specifications.
Stainless steel
Stainless steel cylinder tubes for applications with increased corrosion requirements.
Aluminum
Aluminum cylinder tubes for lightweight applications.
Locations
Solingen
DEProduction and administration (Piepersberg plant)
- Materials
- Carbon steels, stainless steel, aluminum
- 3 roller burnishing machines (skiving/roller burnishing)
- 1 honing machine (ID 30–300 mm, up to 18,000 mm)
- Saw
Components
Inside the production
Industries
Processes & technical limits
| Processes | Tolerance | Max. part | Weight | Lot size | Materials |
|---|---|---|---|---|---|
| Skiving/roller burnishingMachining | ISO Tol. H8, ISO Tol. H9 · Ra 0.2–0.3 µm | 12,000 mm | – | – | Carbon steels, Stainless steel, Aluminum |
| Roller burnishingSurface treatment | ISO Tol. H8, ISO Tol. H9 · Ra 0.2–0.3 µm | – | – | – | Carbon steels, Stainless steel, Aluminum |
| Honing (including blind bores, cross-hatch pattern)Machining | ISO Tol. H8, ISO Tol. H9 · Ra max. 0.3 µm | 18,000 mm | – | – | Carbon steels, Stainless steel, Aluminum |
| Contract machining of cylinder tubesMachining | – | 18,000 mm | – | – | Carbon steels, Stainless steel, Aluminum |
| Sawing / further processingMachining | – | – | – | – | – |
5 Anlagen & Maschinen
| Machine | Manufacturer / model | Quantity | Working area | Year built | Site |
|---|---|---|---|---|---|
| Roller burnishing machine (skiving/roller burnishing) | – | 1 | ID 50–250 mm, max. 5000 mm length | 1996 | Prinzenstraße plant (later Mainauweg/Piepersberg), Solingen |
| Roller burnishing machine (skiving/roller burnishing) | – | 1 | ID 40–250 mm, max. 12,000 mm length | 1999 | Mainauweg plant, Solingen |
| Roller burnishing machine (skiving/roller burnishing) | – | 1 | max. ID 350 mm, length 8000 mm | 2023 | Piepersberg 18, 42653 Solingen |
| Honing machine | – | 1 | ID 30–300 mm (larger on request), up to 18,000 mm production length | 2013 | Piepersberg 18, 42653 Solingen |
| Saw | – | – | – | – | Piepersberg 18, 42653 Solingen |
Additional services
Quality
Production follows defined work processes documented in the quality manual, with continuous monitoring of all production phases by trained staff; regular internal and external audits confirm the quality level. Raw material suppliers deliver on a batch basis with acceptance inspection certificate 3.1 to DIN EN 10204.
| Evidence | Solingen |
|---|---|
| ISO 9001 |
History
- 1995
Foundation of Langer Hydraulik-Elemente GmbH in Solingen-Ohligs
- 1996
Commissioning of the first roller burnishing machine at the Prinzenstraße plant (ID 50–250 mm, max. 5000 mm length)
- 1999
Opening of the Mainauweg plant; second roller burnishing machine, range 40–250 mm, max. length 12,000 mm
- 2001
Certification to DIN EN ISO 9002
- 2003
Relocation of production from the Prinzenstraße plant to the Mainauweg plant
- 2004
Certification DIN EN ISO 9001:2000; renaming as Langer Hydraulik GmbH
- 2005
10 years of cylinder tube production
- 2008
Move to a new production hall with office building in the Piepersberg business park, Solingen-Gräfrath
- 2009
Start of production at the Piepersberg site
- 2010
15 years of skiving and roller burnishing
- 2013
Start-up of the new honing production line
- 2017
Farewell to Hartmut Langer as Managing Director
- 2018
Launch of the new website
- 2023
Commissioning of the third roller burnishing machine (max. ID 350 mm, length 8000 mm)