Components for drum dryers and rotary kilns, gear wheels, bearing housings, steel and lift construction
Harke & Paulig GmbH
Radevormwald (Headquarters)New on Amplifa
About us
Harke & Paulig GmbH was founded on 01.05.2003 and is located in Radevormwald. The company manufactures ready-to-install bearings for drum dryers and rotary kilns, consisting of rolling roller units, axial and pressure roller units, and complete steel bases as welded structures with precisely machined bearing surfaces. Further core areas include running rings and gear wheels up to pitch circle diameters of approx. 7,500 mm and tooth module m=26, bearing housings for drive technology, steel and metal construction, and shaft structures for the elevator industry. Design is carried out in 3D with proENGINEER including FEM calculations and verifiable statics. Materials range from grey cast iron, ductile iron, and steel castings to forged and tempered steels up to stainless steel. Customers come from plant engineering, process technology, elevator technology, wastewater treatment technology, and drive technology; delivery is made including on-site assembly.
- Site
- Radevormwald
- Processes
- Manufacture gear wheels / running rings, Gearing up to module m=26, Bearings for drum dryers and rotary kilns (rolling roller, axial/pressure roller units), Steel base as welded structure with precisely machined bearing surfaces, Press fitting of axles into rollers, Manufacturing of steel bearing housings, flange bearing housings, composite bearing blocks, block, Steel/metal construction (steel base units, customer-specific constructions), Welding works with suitability tests according to DIN EN 287, proof of suitability DIN 18800 T7
- Materials
- Grey cast iron, Ductile Iron, Steel Casting, Stainless Steel, Carbon Steel, Tempered Steel, Forged Steel, Grey Cast Iron
- Certificates
- Welding supervision by welding engineers, Suitability tests according to DIN EN 287, Proof of suitability DIN 18800 T7
- Founded
- 2003-05-01
- Industries
- Plant engineering, Process technology, Elevator technology, Wastewater treatment technology, Steel and metal construction, Drive technology
- 01
Engineering / 3D Design (proENGINEER)
- 02
FEM Calculation and Verifiable Statics
- 03
Manufacturing (Casting and steel constructions, machining, welding)
- 04
Testing (Ultrasound and crack testing quality level 2)
- 05
On-site assembly
Materials and processes
Grey Cast Iron
Material for gear wheels, running rings, rollers, and bearing housings.
Ductile Iron
For heavily stressed running rings, rollers, and housing constructions.
Steel Casting
Used under high stress in gear wheels, rollers, and housings.
Stainless Steel
Material for bearing housings in special operating environments.
Carbon Steel
Material for rollers and steel construction.
Tempered Steel
For highly stressed rollers.
Forged Steel
For shafts and press-fit axes of roller units.
FEM Calculation and Simulation
Proof of strength for housings and constructions.
Locations
Radevormwald
DEHeadquarters, design, and manufacturing
- Materials
- Grey cast iron, ductile iron, steel casting, steel, stainless steel
- 3D design with proENGINEER
- FEM calculation modules
Inside the production
Industries
Processes & technical limits
| Processes | Tolerance | Max. part | Weight | Lot size | Materials |
|---|---|---|---|---|---|
| Manufacture gear wheels / running ringsCasting | – | Running ring diameter up to 7,500 mm | – | – | Grey cast iron, Ductile iron, Steel casting |
| Gearing up to module m=26Machining | – | Pitch circle diameter approx. 7,500 mm | – | – | – |
| Bearings for drum dryers and rotary kilns (rolling roller, axial/pressure roller units)Joining | – | Roller diameter up to 2,000 mm with | – | – | Grey cast iron, Ductile iron, Steel casting, Carbon steel, Tempered steel, Forged steel, Stainless steel |
| Steel base as welded structure with precisely machined bearing surfacesJoining | – | – | – | – | Steel |
| Press fitting of axles into rollersJoining | – | – | – | – | Forged steel |
| Manufacturing of steel bearing housings, flange bearing housings, composite bearing blocks, blockCasting | – | – | – | – | Grey cast iron, Ductile iron, Steel casting, Stainless steel |
| Steel/metal construction (steel base units, customer-specific constructions)Joining | – | – | – | – | Steel |
| Welding works with suitability tests according to DIN EN 287, proof of suitability DIN 18800 T7Joining | – | – | – | – | Steel |
| Elevator shafts / shaft structures incl. verifiable statics and on-site assembly (glass facades,Assembly | – | – | – | – | Steel, Glass |
| Mechanical engineering / special constructions (e.g., tipping chute wastewater treatmentAssembly | – | – | – | – | – |
| Engineering / Construction with 3D design software (proENGINEER), FEM calculations, andEngineering | – | – | – | – | – |
| Ultrasound and crack testing quality level 2Testing | – | – | – | – | – |
Additional services
Quality
The homogeneity of the grain structure in the running surface is confirmed by ultrasound and crack tests of quality level 2. Material test certificates 3.1 according to DIN EN 10204 are mandatory for all essential parts of the bearing.
| Evidence | Radevormwald |
|---|---|
| Welding supervision by welding engineers | |
| Suitability tests according to DIN EN 287 | |
| Proof of suitability DIN 18800 T7 |
History
- 2003
Founding of Harke & Paulig GmbH on 01.05.2003