
Repair, retrofit and new manufacture of hydraulic cylinders as well as modernisation of ring rolling bending machines

Klammer Hydraulik Service GmbH
Neunkirchen (Altenseelbach), SiegerlandNew on Amplifa
About Klammer Hydraulik
Klammer Hydraulik Service GmbH is a family-run specialist hydraulic service business based in Altenseelbach/Neunkirchen in the Siegerland region, which has been active in the market for over 30 years. The company combines classic hydraulic expertise with retrofit, refactoring and the complete overhaul of hydraulic machinery. Its service portfolio includes the repair of hydraulic components of all brands and designs – including cylinders, pumps, valves, rotary motors and control blocks –, the new manufacture of hydraulic cylinders and custom parts based on samples or drawings, as well as perfectly fitting spare parts for older systems. A particular focus is on the modernisation, complete overhaul and retrofit of ring rolling bending machines for metalworking companies. The offering is complemented by maintenance and preventive upkeep with filter checks, oil changes and oil analyses according to NAS/ISO, as well as PLC control technology. Thanks to its location on the A45, the company typically reaches customers in the Siegerland, Westerwald and Lahn-Dill regions within 30–45 minutes.
- Site
- Neunkirchen
- Processes
- Hydraulic service (repair, maintenance, upkeep of hydraulic systems), Retrofit / modernisation of hydraulic systems (conversion, replacement of outdated controls,, Complete overhaul & repair of hydraulic components (cylinders, pumps, valves,, New manufacture of hydraulic cylinders and custom parts based on samples or drawings, spare parts, Maintenance & preventive upkeep (filter checks, hydraulic oil changes,, Complete overhaul / retrofit of ring rolling bending machines, Retrofit/conversion of roll straightening machine (hydraulic feed, synchronisation control,, Retrofit of profile bending machine for guardrails (conversion of feed to hydraulics,
- Materials
- Metal (for ring rolling bending machines / metalworking companies), Retrofit & Machine Modernisation, Complete overhaul of hydraulic components, New manufacture of hydraulic cylinders, Maintenance & preventive upkeep, PLC control technology
- Certificates
- ISO 9001
- Industries
- Metal processing, Mechanical engineering, Road construction (guardrails), Construction / forestry technology (tiltrotators)
- 01
Analysis and consulting on site
- 02
Repair or new manufacture of hydraulic components
- 03
Retrofit and modernisation of machines and controls
- 04
Testing and documentation of all installed parts
- 05
Maintenance and long-term support of the machine fleet
Services and Processes
Retrofit & Machine Modernisation
Technical and energy-related upgrading of older hydraulic systems through conversion, replacement of outdated controls and integration of modern components.
Complete overhaul of hydraulic components
Complete overhaul of cylinders, pumps, valves, rotary motors and control blocks of all brands and designs, including sealing and fine finishing.
New manufacture of hydraulic cylinders
Manufacture of new cylinders and custom parts based on samples or drawings, as well as spare parts for systems whose original parts are no longer available.
Maintenance & preventive upkeep
Filter checks, hydraulic oil changes, oil analyses by particle counting according to NAS/ISO, pressure and flow rate measurement, and leak elimination.
PLC control technology
Construction of modern PLC controls for modernised machines, including synchronisation control and movable control panels.
Location
Neunkirchen (Altenseelbach)
DEWorkshop and base for service deployments
Components and Assemblies


Inside the production








Industries
Processes & technical limits
| Processes | Tolerance | Max. part | Weight | Lot size | Materials |
|---|---|---|---|---|---|
| Hydraulic service (repair, maintenance, upkeep of hydraulic systems)Engineering | – | – | – | – | – |
| Retrofit / modernisation of hydraulic systems (conversion, replacement of outdated controls,Engineering | – | – | – | – | – |
| Complete overhaul & repair of hydraulic components (cylinders, pumps, valves,Assembly | – | – | – | – | – |
| New manufacture of hydraulic cylinders and custom parts based on samples or drawings, spare partsJoining | – | – | – | – | – |
| Maintenance & preventive upkeep (filter checks, hydraulic oil changes,Testing | – | – | – | – | – |
| Complete overhaul / retrofit of ring rolling bending machinesForming | – | – | – | – | Metal (metalworking companies) |
| Retrofit/conversion of roll straightening machine (hydraulic feed, synchronisation control,Forming | – | – | – | – | – |
| Retrofit of profile bending machine for guardrails (conversion of feed to hydraulics,Forming | – | – | – | – | – |
4 Anlagen & Maschinen
| Machine | Manufacturer / model | Quantity | Working area | Year built | Site |
|---|---|---|---|---|---|
| Roll straightening machine (retrofit object, 7 rolls, hydraulic feed, PLC control) | – | 1 | – | – | Neunkirchen Siegerland (project) |
| Profile bending machine for guardrails (retrofit object, year of manufacture 1946) | – | 1 | – | – | Neunkirchen Siegerland (project) |
| Ring rolling bending machines (complete overhaul/modernisation) | – | – | – | – | Neunkirchen Siegerland |
| Retrofit WUMAG (project) | WUMAG | – | – | – | Neunkirchen Siegerland (project) |
Additional services
Reference customers
Quality and Documentation
For retrofit projects, all installed parts, adjustments and work steps are fully documented to ensure traceability and plannable maintenance. For preventive maintenance, oil analyses with particle counting according to NAS/ISO as well as pressure and flow rate measurements are used.
| Evidence | Neunkirchen (Altenseelbach) |
|---|---|
| ISO 9001 |
History
Over 30 years of experience as a family-run specialist business for hydraulic service in the Siegerland
- 2025
Retrofit project Peetz company: comprehensive overhaul and modernisation of a 1946 profile bending machine for guardrails, including hydraulic feed, new PLC control and laser scanner safety system
- 2026
Conversion of a roll straightening machine with seven rolls: changeover from mechanical to hydraulic feed, new drive and control technology
Retrofit project at WUMAG