Machines and turnkey systems for machining, assembly technology, electromobility and battery production
GROB-WERKE GmbH & Co. KG
Mindelheim · São Paulo · Bluffton · Dalian · Pianezza · BangaloreNew on Amplifa
About GROB-WERKE
GROB-WERKE GmbH & Co. KG is a family-owned company founded in 1926 and headquartered in Mindelheim. It manufactures machine tools, modular special-purpose machines, transfer lines, turnkey machining systems as well as assembly systems and assembly lines for high-volume production. The product portfolio includes 4- and 5-axis milling machining centers, mill-turn machining centers, large machining centers, systems for stator and rotor production in electric motors, battery cell and battery module assembly technology as well as PEM fuel cell stacking systems. Production is carried out according to customer requirements as custom manufacturing – from individual parts to high-volume mass production, complemented by automation solutions, additive manufacturing (Liquid Metal Printing GMP300) and digitalization with GROB-NET 4 Industry. Industries served include automotive, mechanical engineering, tool and die making, aerospace, medical technology, energy technology and battery production. The parent plant in Mindelheim comprises 210,800 m² of production space with around 6,100 employees; worldwide, the GROB Group employs around 9,800 people at six production plants in Germany, Brazil, USA, China, Italy and India.
- Site
- Mindelheim
- Processes
- 4-axis milling (universal machines), 5-axis milling (universal machines), 5-axis mill-turn machining (5-side machining), Deep-hole drilling over the entire length of the Z-axis, machining of deep cavities and complex, Machining with modular special-purpose machines (milling, contour, multi-spindle and tapping,, Turnkey machining systems (turnkey systems) for high-volume production, Assembly lines and assembly stations (fully automatic, semi-automatic, manual) for, Liquid Metal Printing (powder-free additive manufacturing process, GMP300)
- Materials
- Aluminum alloys, alloyed heat-treatable steel, C45, Steel, Alloyed heat-treatable steel
- Certificates
- DIN EN ISO 9001, DIN EN ISO 14001, VDA 6.4, DIN EN ISO 50001, DIN EN ISO 3834-2, ISO 45001, TISAX, AEO (Authorised Economic Operator), AEO
- Founded
- 1926
- Employees
- 9800
- Industries
- Automotive, Mechanical engineering, Tool and die making, Aerospace, Medical technology, Energy technology
- 01
Engineering and design
- 02
Mechanical engineering and system manufacturing
- 03
Assembly and commissioning
- 04
Automation and linking
- 05
Testing and quality assurance
- 06
Service, maintenance and retrofit
Materials & Processes
Aluminum alloys
Machined in universal machines and in the powder-free additive manufacturing process (Liquid Metal Printing GMP300).
Alloyed heat-treatable steel
Machining example for gear production on GROB universal machines.
C45
Machining example output carrier on GROB universal machines.
Steel
Machining examples for drill crown, connecting rod and vice.
Production Sites
Mindelheim
DEParent plant: production, R&D, headquarters
- Lot size
- Single part to large series
- Materials
- Steel, alloyed heat-treatable steel, C45, aluminum alloys
- 4-axis milling machining centers G440/G640/G840
- 5-axis universal machines G150–G1050
- 5-axis mill-turn machining centers G350T/G550T/G750T
- Large machining center G800
- G900 series for extruded profiles and giga-castings
- F series G500F–G720F
- Liquid Metal Printing machine GMP300
- Modular special-purpose machines and transfer lines
São Paulo (S. Bernardo do Campo)
BRProduction plant B. GROB do Brasil S.A.
Bluffton, Ohio
USProduction plant GROB Systems, Inc.
Dalian
CNProduction plant GROB Machine Tools (China) Co., Ltd.
Pianezza (Turin)
ITElectromobility production plant GROB Italy S.r.l.
- Lot size
- Small to large series
- Winding and inserting machines
- Slot insulation machines
- End-form/intermediate-form/taping machines
- Linear winding machines (1–4 spindles)
- Rotor needle winding machines
- Machines for stacking and welding of laminated cores
Bangalore/Somandepalli (Andhra Pradesh)
INProduction plant GROB MACHINE TOOLS INDIA Private Limited
Components & Systems
Inside the production
Industries
Processes & technical limits
| Processes | Tolerance | Max. part | Weight | Lot size | Materials |
|---|---|---|---|---|---|
| 4-axis milling (universal machines)Machining | – | – | – | – | a wide variety of materials |
| 5-axis milling (universal machines)Machining | – | – | – | – | a wide variety of materials |
| 5-axis mill-turn machining (5-side machining)Machining | – | – | – | – | – |
| Deep-hole drilling over the entire length of the Z-axis, machining of deep cavities and complexMachining | – | – | – | – | almost all materials |
| Machining with modular special-purpose machines (milling, contour, multi-spindle and tapping,Machining | – | – | – | Large series | – |
| Turnkey machining systems (turnkey systems) for high-volume productionMachining | – | – | – | Large series | – |
| Assembly lines and assembly stations (fully automatic, semi-automatic, manual) forAssembly | – | – | – | – | – |
| Liquid Metal Printing (powder-free additive manufacturing process, GMP300)Additive | Positioning accuracy 0.015 mm | 300 mm × 300 mm × 300 mm | – | – | Aluminum alloys |
| Battery cell production via Z-folding and lamination (pouch, cylindrical, prismatic cells)Assembly | – | – | – | Pilot and small-series production – High volume | – |
| Battery module and battery pack assembly (cell-to-pack)Assembly | – | – | – | Large series | – |
| Stator production with hairpin technology (wave winding generation 2.0)Assembly | – | – | – | Large series | – |
| Slot insulation, winding and inserting of coils, intermediate forms, end forms (pressing of theAssembly | – | – | – | – | – |
| Linear winding (orthocyclic winding, 1 to 4 simultaneously working spindles)Assembly | – | – | – | – | – |
| Rotor needle winding (automatic winding of rotors)Assembly | – | – | – | – | – |
| Rotor lines: adhesive application and magnet insertion by robot, rotor shaft assembly with force-Assembly | – | – | – | – | – |
| Stacking and welding of laminated cores (plasma/TIG/laser welding)Joining | – | – | – | – | – |
| Stator impregnation (fully automatic, trickle impregnation)Assembly | – | – | – | Large series | – |
| Fuel cell stacking systems (PEM)Assembly | – | – | – | – | – |
| Thermal coating of cylinder blocksSurface | – | – | – | – | – |
| Automation technology (GROB robot cell GRC, pallet storage systems PSS-R/L/T, driverlessAssembly | – | – | – | – | – |
| Testing and inspection systems with full traceability (measuring, washing andTesting | – | – | – | – | – |
14 Anlagen & Maschinen
| Machine | Manufacturer / model | Quantity | Working area | Year built | Site |
|---|---|---|---|---|---|
| 4-axis milling machining center | GROB G440, G640, G840 | – | – | 2021 | – |
| 5-axis milling machining center (universal machine) | GROB G150, G350, G550, G750, G350a, G550a, G1050 | – | – | – | – |
| 5-axis mill-turn machining center | GROB G350T, G550T, G750T | – | – | – | – |
| Large machining center with 6-axis kinematics | GROB G800 | – | – | 2015 | – |
| Machining center for extruded profiles, mega- and giga-castings | GROB G900 series | – | – | 2023 | – |
| Machining center for frame structure components (F series) | GROB G500F, G520F, G600F, G700F, G720F | – | – | – | – |
| Liquid Metal Printing machine | GROB GMP300 | – | Build volume 300x300x300 mm; 3-axis kinematics, max. axis speed 30 m/min | 2022 | – |
| Modular special-purpose machines / transfer lines with machining units (milling, contour, tapping, | GROB | – | – | – | – |
| Winding and inserting machine | GROB | – | – | – | Pianezza (Turin), Italy |
| Slot insulation machine | GROB | – | – | – | Pianezza (Turin), Italy |
| End-form machine / intermediate-form machine / taping machine | GROB | – | – | – | Pianezza (Turin), Italy |
| Linear winding machine (1-4 spindles) | GROB | – | – | – | Pianezza (Turin), Italy |
| Rotor needle winding machine | GROB | – | – | 2021 | – |
| Machine for stacking and welding of laminated cores | GROB | – | – | – | Pianezza (Turin), Italy |
Additional services
Reference customers
Quality & Certifications
GROB-WERKE safeguards its quality standards through regular reviews and holds all key certifications, including DIN EN ISO 9001, DIN EN ISO 14001, VDA 6.4, ISO 45001 and DIN EN ISO 50001.
| Evidence | Mindelheim |
|---|---|
| DIN EN ISO 9001 | |
| DIN EN ISO 14001 | |
| VDA 6.4 | |
| DIN EN ISO 50001 | |
| ISO 45001 | |
| DIN EN ISO 3834-2 | |
| TISAX | |
| AEO |
Company History
- 1926
Founded by Ernst Grob in Munich
- 1933
Production of the first thread milling machine
- 1956
First foreign plant in São Paulo (Brazil)
- 1968
Construction of the Mindelheim parent plant; start of transfer line production
- 1976
Closure of the Munich plant; relocation of company headquarters to Mindelheim
- 1991
Opening of the Bluffton production plant (USA)
- 2006
Sale of the aerospace business unit
- 2012
Opening of the Dalian production plant (China)
- 2015
Reaching the first revenue billion (fiscal year 2014/15)
- 2017
Acquisition of DMG meccanica (Turin) – entry into electromobility
- 2020
Opening of the Italian production plant for e-mobility in Pianezza
- 2021
Strategic cooperation with Manz AG in the field of lithium-ion battery systems
- 2022
Dürr AG joins the battery cooperation; founding of the Bangkok branch
- 2024
Opening of the sixth production plant in Bangalore (India); founding of the Istanbul branch
- 2025
Founding of the service branch in Steyr (Austria); 100th anniversary