Rack milling machines and grinding machines, rack contract manufacturing and iron foundry in Ehingen
Ehinger Werkzeugmaschinenfabrik GmbH
Ehingen (Schwarze Gasse 17, 89584)New on Amplifa
About EGW
Ehinger Werkzeugmaschinenfabrik GmbH (EGW), based in Ehingen (Alb-Donau district, Baden-Württemberg), specializes in the development, design and manufacture of rack milling machines and rack grinding machines. Founded in 1905, the company distributes its 75 employees across three business divisions: mechanical engineering, contract manufacturing and foundry. In contract manufacturing, racks of every design and size, machine components, castings, broaches and saw blades are produced – from individual parts to large-scale series, including complete production with material procurement and hardening. Gear teeth are milled up to module 30 and ground up to module 20; special profiles such as timing belt profiles and pointed gear teeth round out the offering. The CNC machines in moving-column and moving-table designs achieve X-axis travel of up to 10 m and table loads of up to 20,000 kg. In addition, EGW offers services such as maintenance, modernization, overhaul and plant relocation, as well as used machinery trading. The company is part of the Arthur Klink Group in Pforzheim.
- Site
- Ehingen
- Processes
- Milling (rack/gear milling machines), Grinding (pendulum grinding, deep grinding, profile grinding), Drilling, Turning, Deburring, Straightening, Gear tooth milling up to module 30, Gear tooth grinding up to module 20
- Materials
- Steel C45, Castings, Castings (iron castings), Steel (general)
- Certificates
- ISO 9001 (DIN EN ISO 9001, PDF states ISO 9001:2000), ISO 9001
- Founded
- 1905
- Employees
- 75
- Industries
- Mechanical engineering, Rack and gearing technology, Automotive supplier, Rack and gearing technology (steering racks, broaches, saw blades), Driven systems / automotive supplier
- 01
Engineering / Design
- 02
Casting (Foundry)
- 03
Milling
- 04
Grinding
- 05
Drilling, Turning, Deburring, Straightening
- 06
Heat Treatment / Hardening
- 07
Assembly
- 08
Service & Maintenance
Materials & Processes
Steel C45
Reference material for gear milling up to module 30 and grinding up to module 18 on EGW machines.
Castings (iron castings)
In-house iron foundry on the plant premises; castings are also machined in contract manufacturing.
Steel (general)
Machining of steel parts in contract manufacturing, including complete production with hardening.
Locations
Ehingen
DEHeadquarters, manufacturing, foundry, mechanical engineering, contract manufacturing
- Part weight / size
- Table load up to 20,000 kg
- Lot size
- Individual parts to large-scale series
- Materials
- Steel C45, castings
- Rack milling machine UPFM 500 F-CNC (moving column, X 2,400–8,400 mm)
- Rack grinding machine UPSM 500 F-CNC (moving column)
- Rack milling machine UZFM 500-CNC
- Rack grinding machine UTSM 500-CNC
- Rack milling machine UZFM 400-CNC (moving table, X 2,000 mm)
- UPSM 500 F-CNC series up to 8,400 mm X-axis travel
Industries
Processes & technical limits
| Processes | Tolerance | Max. part | Weight | Lot size | Materials |
|---|---|---|---|---|---|
| Milling (rack/gear milling machines)Machining | – | up to 10 m X-axis travel | – | – | Steel C45, Castings |
| Grinding (pendulum grinding, deep grinding, profile grinding)Machining | – | up to 10 m X-axis travel | – | – | Steel C45 |
| DrillingMachining | – | – | – | – | – |
| TurningMachining | – | – | – | – | – |
| DeburringSurface | – | – | – | – | – |
| StraighteningForming | – | – | – | – | – |
| Gear tooth milling up to module 30Machining | – | – | – | Large-scale series | Steel C45 |
| Gear tooth grinding up to module 20Machining | – | – | – | – | Steel C45 |
| Special profile milling/grinding (timing belt profiles, pointed gear teeth, customer-specificMachining | – | – | – | – | – |
| Complete production incl. material and hardeningHeat treatment | – | – | – | – | – |
| Thread cuttingMachining | – | – | – | – | – |
| BoringMachining | – | – | – | – | – |
| Mechanical engineering / design (plant and process optimization, modernization, overhaul)Engineering | – | – | – | – | – |
6 Anlagen & Maschinen
| Machine | Manufacturer / model | Quantity | Working area | Year built | Site |
|---|---|---|---|---|---|
| Rack milling machine (moving-column design) | EGW UPFM 500 F-CNC | – | X 2,400-8,400 mm, Y 500 mm, Z 410 mm, table load max. 20,000 kg, swivel range ±45°, | – | Ehingen |
| Rack grinding machine (moving-column design) | EGW UPSM 500 F-CNC | – | X 2,400-8,400 mm, Y 500 mm, Z 410 mm, table load max. 20,000 kg, grinding range module 0.1-18, | – | Ehingen |
| Rack milling machine | EGW UZFM 500-CNC | – | X 2,100/3,100/4,100 mm, Y 500 mm, Z 410 mm, table load 3,500-5,500 kg, milling range up to module 30 | – | Ehingen |
| Rack grinding machine | EGW UTSM 500-CNC | – | X 2,100/3,100/4,100 mm, Y 500 mm, Z 410 mm, table load 3,500-5,500 kg, module 0.1-18, | – | Ehingen |
| Rack milling machine (moving-table design) | EGW UZFM 400-CNC | – | X 2000 mm (other sizes on request), Y 400 mm, Z 300 mm, C-axis ±30°, positioning accuracy | – | Ehingen |
| Grinding machine | EGW UPSM 500 F-CNC (series 2,100-8,400) | – | X axis 2,100/3,100/4,100/5,400/6,400/7,400/8,400 mm | – | Ehingen |
Additional services
Quality
EGW manufactures according to DIN EN ISO 9001; the machines achieve system accuracies of ±0.002 mm with direct linear measuring systems (glass scales) for all axes. Incoming goods inspection and documented manufacturing processes ensure workpiece quality from individual parts to large-scale series.
| Evidence | Ehingen |
|---|---|
| ISO 9001 |
History
- 1905
Otto Knapp founds a mechanical workshop for agricultural machinery and tractor services in Ehingen; production of grist mills as well.
- 1938
Establishment of an iron foundry on the plant premises in Ehingen.
- 1955
Manufacture of universal rack milling machines, sold through DONAU-Werkzeugmaschinen GmbH.
- 1974
Acquisition of the Knapp company by DONAU-Werkzeugmaschinen GmbH.
- 1984
Founding of Ehinger Gießerei und Werkzeugmaschinenfabrik (EGW) and acquisition of DONAU-Werkzeugmaschinen GmbH.
- 1988
Construction of a new assembly hall with office complex.
- 1989
Development and construction of the first CNC-controlled rack milling machine.
- 1996
Development of the new UZFM 500 and UTSM 500 milling and grinding machine series for racks.
- 2005
100th company anniversary.
- 2008
Acquisition of EGW by the Arthur Klink Group in Pforzheim.