Special-purpose machine building, assembly and testing systems as well as machined contract manufacturing of precision parts from Hepberg near Ingolstadt.
Stefani Maschinenbau GmbH
85120 Hepberg (DE) · 9027 Győr (HU) · 557260 Sibiu (RO)New on Amplifa
Company
Stefani Maschinenbau GmbH is a medium-sized machine building company founded in 1985 in Wettstetten near Ingolstadt, with its headquarters in Hepberg. The company develops, designs, manufactures and sells special-purpose machines, fixtures, gauges and assembly tools as well as assembly and measuring/testing systems for industries such as automotive, aerospace, wind power, tool, electrical, construction and food industries. Core competencies are special-purpose machine building including design, electrical engineering, control programming and robot commissioning (Fanuc, Kuka, ABB, Siemens, Beckhoff) as well as machined contract manufacturing of prototypes, single parts, large parts and precision parts up to series production. Milling is performed up to 7000 x 4000 x 1500 mm, turning up to Ø 1600 mm and 2000 mm length; additionally, the company offers cylindrical and surface grinding, wire and sinker EDM, metalworking and welding, laser marking and state-of-the-art metrology. Materials include all common metals, plastics and castings. In addition to its German site, the company, with more than 100 employees in Germany, operates production companies in Győr (Hungary) and Sibiu (Romania) and supplies customers on all continents.
- Site
- Hepberg
- Processes
- Milling, Turning, Cylindrical grinding, Surface grinding, Wire EDM, Sinker EDM, Laser marking (marking, engraving), Metalworking / welding
- Materials
- all common metals, Plastics, Castings, fiber-reinforced synthetic resins, All common metals, Fiber-reinforced synthetic resins
- Certificates
- ISO 9001:2015
- Founded
- 1985
- Employees
- over 100 (German
- Industries
- Automotive industry, Aerospace, Lighting industry, Wind power, Tool industry, Electrical industry
- 01
Design and engineering
- 02
Electrical engineering and control programming
- 03
CNC manufacturing (milling, turning, grinding, EDM)
- 04
Metalworking and welding
- 05
Machine assembly and trial runs
- 06
Robot commissioning
- 07
Metrology and quality inspection
- 08
Service, maintenance and support
Materials and Processes
All common metals
Machining of single parts, large parts and precision parts as well as series production in CNC contract manufacturing.
Plastics
Machining of plastic components in contract manufacturing and for special-purpose machines.
Castings
Machining of cast parts, e.g. for large and precision parts.
Fiber-reinforced synthetic resins
Design, production, sale and assembly of corresponding products at Stefani Pool Technology SRL (Sibiu).
Locations
Hepberg
DEHeadquarters, production, special-purpose machine building, contract manufacturing
- Part weight / size
- Components up to 7000 x 4000 x 1500 mm (milling)
- Lot size
- Single part to large series
- Materials
- Metals, plastics, castings
Győr
HUProduction (Stefani Hungária Gépgyártó Kft.)
Sibiu (Şelimbăr)
ROProduction (Stefani Mecanofin SRL, Stefani Pool Technology SRL)
- Materials
- Fiber-reinforced synthetic resins (Pool Technology)
Components and Systems
Inside the production
Industries
Processes & technical limits
| Processes | Tolerance | Max. part | Weight | Lot size | Materials |
|---|---|---|---|---|---|
| MillingMachining | – | 7000 mm × 4000 mm × 1500 mm | – | Single part – Series | Metals, Plastics, Castings |
| TurningMachining | – | 2000 mm × Ø 1600 mm | – | – | Metals |
| Cylindrical grindingMachining | – | 1950 mm × Ø 500 mm | – | – | Metals |
| Surface grindingMachining | – | 2000 mm × 750 mm × 500 mm | – | – | Metals |
| Wire EDMMachining | – | 600 mm × 400 mm × 350 mm | – | – | demanding materials |
| Sinker EDMMachining | – | 600 mm × 400 mm × 350 mm | – | – | demanding materials |
| Laser marking (marking, engraving)Surface treatment | – | – | – | – | – |
| Metalworking / weldingJoining | – | – | – | – | Metals |
| Contract manufacturing of prototypes, single, large & precision parts, series (CNC machining)Machining | – | 7000 mm × 4000 mm × 1500 mm | – | Single part – high quantities | all common metals, Plastics, Castings |
| Coordinate measuringTesting | – | 3000 mm × 1600 mm × 1000 mm | – | – | – |
| Mobile measuringTesting | – | 110 m spherical working volume | – | – | – |
| Special-purpose machine building (design, manufacturing, commissioning)Engineering | – | – | – | – | – |
| Assembly systems (takt-based or free workpiece carrier transfer)Assembly | – | – | – | – | – |
| Measuring and testing systems (e.g. leak test/tightness testing up to 12 bar, leak rate accuracyTesting | Leak rate accuracy down to 0.1 cm³/min | – | – | – | – |
| Bin picking (camera-assisted bulk material presentation)Assembly | – | – | – | – | – |
| Workpiece carriers (incl. self-propelled, measuring and testing systems)Assembly | – | – | – | – | – |
| Manual workstations (aligning, assembling, testing, joining)Assembly | – | – | – | – | – |
| Design and electrical engineering, measuring systems, service & supportEngineering | – | – | – | – | – |
25 Anlagen & Maschinen
| Machine | Manufacturer / model | Quantity | Working area | Year built | Site |
|---|---|---|---|---|---|
| 5-axis machining center | Hermle C400 U | – | 850 x 700 x 500 mm | – | Hepberg |
| Milling machine (3-axis, vertical) | Mazak VTC 300C-II | – | 1740 x 760 x 660 mm | – | Hepberg |
| Machining center (3-axis) | Mazak VCN-530C | 2 | 1050 x 530 x 510 mm | – | Hepberg |
| 5-axis machining center | Matec 30-HV | 2 | 4000 x 1000 x 1100 mm or 3000 x 800 x 1100 mm | – | Hepberg |
| Machining center (3-axis) | Matec 20A | – | 900 x 560 x 560 mm | – | Hepberg |
| 5-axis gantry milling machine | Zayer Memphis 700U | – | 7000 x 4000 x 1500 mm | – | Hepberg |
| 5-axis gantry milling machine | AXA VPC 45 U | – | 3400 x 2200 x 1100 mm | – | Hepberg |
| Milling machine (3-axis) | Abene VHF330-CNC | – | 600 x 500 x 450 mm | – | Hepberg |
| CNC lathe (3-axis) | Mazak QTN 450II M | 2 | max Ø 580 mm, Z 1000/2000 mm | – | Hepberg |
| Turn-mill center (5-axis) | Mazak Quick Turn 250MSY | – | max Ø 380 mm, Z 625 mm | – | Hepberg |
| Turn-mill center (4-axis) | Mazak Quick Turn 250MY | – | max Ø 380 mm, Z 1090 mm | – | Hepberg |
| CNC lathe (3-axis) | Mazak MTN 1600M | – | max Ø 1600 mm, Z 900 mm | – | Hepberg |
| CNC lathe (4-axis) | Mazak QTN 250II MY | – | max Ø 380 mm, Z 1500 mm | – | Hepberg |
| CNC lathe (3-axis) | Hwacheon VT-1150 | – | max Ø 1270 mm, Z 800 mm | – | Hepberg |
| CNC lathe (4-axis) | Hwacheon VT-650MG/YMC | – | max Ø 800 mm, Z 790 mm | – | Hepberg |
| Universal cylindrical grinding machine CNC | Studer S30 Lean Pro | – | Ø 350 mm, X/I 850 mm, Z 760 mm | – | Hepberg |
| Universal cylindrical grinding machine CNC | GP GP-CNC-1500B | – | Ø 500 mm, X/I 1950 mm, B 400 mm | – | Hepberg |
| High-precision surface and profile grinding machine CNC | Elb Smart BL 15 SWBE 20 | – | X 1450 mm, H 500 mm | – | Hepberg |
| NC surface grinding machine | Elb | – | X 2000 mm, H 300 mm | – | Hepberg |
| Wire EDM machine | CUT F 600 | 2 | 600 x 400 x 350 mm, taper ±30°/50 mm | – | Hepberg |
| Coordinate measuring machine (5-axis) | Zeiss Accura | – | 1600 x 3000 x 1000 mm | – | Hepberg |
| Coordinate measuring machine (3-axis) | Zeiss Contura G2 | 2 | 1000 x 1600 x 600 mm | – | Hepberg |
| Portable measuring system (5-axis) | Faro FaroArm Platin | – | r = 1000 mm (2.4 m / 3.0 m: X 1000) | – | Hepberg |
| Laser tracker | Faro Laser Tracker | – | r = 55 m | – | Hepberg |
| Industrial robots (integrated in special-purpose machines) | Fanuc / Kuka / ABB / Adept / Epson / UR | – | – | – | Hepberg |
Additional services
Quality and Certification
Stefani Maschinenbau GmbH is certified by DEKRA according to ISO 9001:2015 for the development, production and sale of special-purpose machines, fixtures, gauges and assembly tools as well as machined contract manufacturing (certificate no. 41298855/9, valid until 09.10.2026). Quality assurance is carried out, among other things, with Zeiss coordinate measuring machines (up to 1600 x 3000 x 1000 mm), FaroArm Platin and laser tracker.
| Evidence | Hepberg | Győr | Sibiu (Şelimbăr) |
|---|---|---|---|
| ISO 9001:2015 |
History
- 1985
Company founded in Wettstetten near Ingolstadt
Over 30 years of manufacturing assembly systems; establishment of the plants in Győr (Hungary) and Sibiu (Romania)