Hydraulic systems, polyurethane elastomers, laser optics and valves for industry and shipbuilding
Paul Pleiger Maschinenfabrik GmbH & Co. KG
Witten · Sprockhövel · USA (PLEIGER Plastics) · South Korea (PLEIGER Far East) · Shanghai (PLEIGER Electronic Control Systems) · China (Representative Office)New on Amplifa
About the Pleiger Group
The Paul Pleiger Maschinenfabrik was founded in 1925 in Sprockhövel and initially manufactured compressed-air valves and fittings for the mining industry. Today, the Pleiger Group is a diversified German high-tech manufacturer with its own vocational training centre and several production sites. The company manufactures hydraulic radial piston motors and slew drives, control valves, centrifugal pumps, electrohydraulic shipbuilding systems as well as electronic systems. In parallel, it produces aluminium die castings and non-ferrous metal castings, and in the plastics sector it is a pioneer of polyurethane cast elastomers with the materials Vulkollan®, Plei-Tech® and PLEI-TECH® 3D. In addition, the Group manufactures optical components for the laser industry made of ZnSe, including lenses, laser mirrors and optical coatings. In the 1996 reorganisation, the divisions were spun off as independent companies of the Pleiger Group.
- Site
- Witten
- Processes
- Metal Foundry, Non-Ferrous Metal Casting, Polyurethane Cast Elastomer Production, Injection Moulding, PLEI-TECH® 3D (Additive Manufacturing), Optical Coatings, Manufacture of Optical Components (Lenses, Mirrors), Manufacture of Hydraulic Radial Piston Motors and Slew Drives
- Materials
- Polyurethane (Cast Elastomers), Vulkollan®, Plei-Tech®, ZnSe, Non-Ferrous Metals, ZnSe (Zinc Selenide)
- Certificates
- ISO 9001
- Founded
- 1925
- Industries
- Shipbuilding, Mining, Industry/Mechanical Engineering, Laser Industry, Plastics Industry, Coking Plants
- 01
Design / Custom Solutions
- 02
Metal Foundry / Non-Ferrous Metal Casting
- 03
Polyurethane Cast Elastomer Production
- 04
Injection Moulding
- 05
Additive Manufacturing (PLEI-TECH® 3D)
- 06
Optical Coatings
- 07
Assembly of Hydraulic Drives and Valves
- 08
Service & Commissioning
Materials and Processes
Polyurethane (Cast Elastomers)
Cast elastomers for wear parts, coupling elements and PU-metal composites.
Vulkollan®
High-performance polyurethane for highly stressed wear and coupling elements.
Plei-Tech®
In-house developed polyurethane product family for wear parts, squeegee blades and injection-moulded articles.
ZnSe (Zinc Selenide)
Material for lenses and laser mirrors in the laser optics division.
Non-Ferrous Metals
Used in the company's own metal foundry and non-ferrous metal casting area.
Sites of the Pleiger Group
Witten
DEHeadquarters / Machine Factory
- Materials
- Polyurethane, non-ferrous metals, ZnSe, steel
- Metal foundry
- Polyurethane processing
- Injection moulding
- Optical manufacturing
- Vocational training centre
Sprockhövel
DEFounding Site
- Materials
- Polyurethane
USA (PLEIGER Plastics)
USProduction of Polyurethane Products
- Materials
- Polyurethane
South Korea (PLEIGER Far East)
KRProduction of Hydraulics, Valves, Non-Ferrous Metal Casting
- Materials
- Non-ferrous metals
Shanghai (PLEIGER Electronic Control Systems)
CNProduction of Electronic Systems and Hydraulics
Inside the production
Industries
Processes & technical limits
| Processes | Tolerance | Max. part | Weight | Lot size | Materials |
|---|---|---|---|---|---|
| Metal FoundryCasting | – | – | – | – | Metal |
| Non-Ferrous Metal CastingCasting | – | – | – | – | Non-ferrous metals |
| Polyurethane Cast Elastomer ProductionPlastics | – | – | – | – | Polyurethane, Vulkollan®, Plei-Tech® |
| Injection MouldingPlastics | – | – | – | – | Plastics |
| PLEI-TECH® 3D (Additive Manufacturing)Additive | – | – | – | – | Plei-Tech® |
| Optical CoatingsSurface | – | – | – | – | Optical components (ZnSe, laser mirrors) |
| Manufacture of Optical Components (Lenses, Mirrors)Engineering | – | – | – | – | ZnSe |
| Manufacture of Hydraulic Radial Piston Motors and Slew DrivesAssembly | – | – | – | – | – |
| Manufacture of Valves, Fittings, Pumps and Control ValvesAssembly | – | – | – | – | – |
| PU-Metal CompositesJoining | – | – | – | – | Polyurethane, Metal |
| Manufacture of Electronic SystemsAssembly | – | – | – | – | – |
Additional services
Quality Assurance
The Pleiger Group combines its own vocational training centre and research & development with process control and service & commissioning as components of quality assurance. Detailed certifications are not specified in the sources.
| Evidence | Witten |
|---|---|
| ISO 9001 |
Company History
- 1925
Founding of the Paul Pleiger Maschinenfabrik by Paul Pleiger in Sprockhövel; initially compressed-air valves and fittings for the mining industry.
- 1937
Start of mechanical manufacturing at the new plant in Witten-Herbede.
- 1950er
Expansion to include hydraulic radial piston motors, slew drives, control valves and centrifugal pumps; start of polyurethane production.
- 1996
Spin-off of the divisions as independent companies of the Pleiger Group.