
System supplier for stamped metal parts, structural components, and ready-to-use metal assemblies for the automotive industry

ProTec Metalltechnik GmbH
Geretsried · Bad TölzNew on Amplifa
About ProTec Metalltechnik
ProTec Metalltechnik GmbH is a system supplier for the automotive and metal industries with over 25 years of experience in mass production, prototyping, and tooling. The company manufactures complex components and ready-to-use assemblies – from structural and body components to housings and brackets – and acts as an engineering partner right from the development phase. The value chain includes design, CNC milling and turning, tooling, 2D/3D laser cutting and punching, forming (stamping, deep drawing, bending), joining and welding (MIG/MAG, TIG, CMT, spot and bolt welding, riveting, clipping), surface technology (electro-galvanization, powder coating, zinc plating, painting), and assembly. The following materials are processed: steels including high- and ultra-high-strength steels up to 980 DP, stainless steels, aluminum and magnesium alloys, copper, brass, zinc, and plastics for hybrid components. The core market is the automotive industry with the segments Motorsport, Premium and Special vehicles; other customers originate from rail vehicle construction, mechanical engineering, electrical engineering, and construction accessories. Since September 2019, ProTec has been part of the Jilin Jinhong Autoparts Group (China), under which mass series production is coordinated.
- Site
- Geretsried
- Processes
- CNC Milling, CNC Turning, Tooling (Follow-up, Transfer, Single and Prototype Tools), 2D/3D Laser Cutting, Punching / Tool-bound Sheet Metal Processing, Bending (Trimming), Deep Drawing, Stamping
- Materials
- Structural Steel, Forming Steel, Tempered Steel, Stainless Steel V2A, Stainless Steel V4A, Automotive Steel, Tool Steel, Spring Steel
- Certificates
- IATF 16949, DIN EN ISO 9001:2015, DIN EN ISO 14001:2015, ISO 9001, ISO 14001
- Industries
- Automotive Industry & Vehicle Construction, Motorsport, Premium Vehicles, Special Vehicle Construction, Rail Vehicle Construction, Mechanical Engineering
- 01
Design / Feasibility Analysis
- 02
Tooling
- 03
CNC Milling / Turning
- 04
Laser Cutting & Punching
- 05
Forming (Stamping, Deep Drawing, Bending)
- 06
Joining / Welding
- 07
Surface Technology
- 08
Assembly / Final Assembly
- 09
3D Metrology / Inspection
Materials & Processes
Steel (Structural Steel, Forming Steel, Tempered Steel, Spring Steel, Cold
Wide spectrum of steels for body and structural components, including automotive and tool steel.
High- and Ultra-High-Strength Steels (up to 980 DP)
For safety-critical structural components in modern vehicle construction.
Stainless Steel V2A / V4A
Corrosion and acid-resistant stainless steels for demanding components.
Aluminum Alloys (AlMg, AlMgSi, AlCu, AL5, AL6)
Light metals for body construction and structural components, up to AL5/AL6 in the group.
Magnesium and Magnesium Alloys
Light metal for weight-reduced vehicle components.
Copper, Brass, Zinc
Heavy metals and special alloys for electrical and decorative applications.
Coated Sheets (Zn, Al-Zn, KTL)
Prepared sheet materials for corrosion protection and painting processes.
Plastics (Hybrid Components, UV Polyjet)
Plastics for hybrid construction and rapid prototyping in 3D printing.
Sites

Geretsried
DEProduction / Administration (Spreestr. 19)
- Lot size
- up to 10,000 pcs
- Materials
- Steel, Stainless Steel, Aluminum
- Deep drawing press Schön 300 t (Table 1,200 × 1,200 mm)
- Deep drawing press Müller 100 t (Table 800 × 700 mm)
- Deep drawing press Müller 100 t (Table 700 × 650 mm)

Bad Tölz
DEProduction Site
- Lot size
- Prototype to Mass Production
- Materials
- Steel, Stainless Steel, Aluminum, Magnesium, Brass, Copper
- TruLaser Cell 7040 (6 kW CO₂, 4,000 × 2,000 × 1,000 mm)
- TruMatic 6000 and TruMatic 1000 (Laser punching, 2,500 × 1,250 mm)
- Bending presses TRUMPF V50/V85/V130 (up to 130 t, 3,100 mm)
- 2× TruBend Cell 7000 (electric, fully automatic)
- Fronius TPS 320i (MIG/MAG), TransSteel and W230 (TIG), TruArc Weld 1000 (CMT)
- Dalex/Schlatter spot welding machines
- Häger 824 E-Line / One Touch (Riveting, Clipping)
- Lissmac grinding machine (deburring/rounding)
- Bio-Circle HTW 1200 (part cleaning)
- Keyence Agilista 3200W (3D printing, UV Polyjet)
- Wenzel 3D KMM (1,200 × 800 × 500 mm)
- Creaform Handyscan 3D

Jilin, Chengdu, Guangdong, Tianjin (China)
Mass series production via Jilin Jinhong Autoparts Group
- Lot size
- Mass series production
- Materials
- Steel up to 980 DP, Aluminum AL5/AL6
- Over 46 transfer presses up to 200 t in Chengdu (Group up to 2,500 t)
- Aluminum welding robots in Tianjin
- BIW welding line
- Roll forming machines
Parts



Inside the production






Industries
Processes & technical limits
| Processes | Tolerance | Max. part | Weight | Lot size | Materials |
|---|---|---|---|---|---|
| CNC MillingMachining | – | – | – | – | Steel, Stainless Steel, Aluminum, Magnesium, Brass, Copper |
| CNC TurningMachining | – | – | – | – | Steel, Stainless Steel, Aluminum, Brass, Automotive Steel |
| Tooling (Follow-up, Transfer, Single and Prototype Tools)Engineering | – | – | – | – | Tool Steel |
| 2D/3D Laser CuttingMachining | – | 4,000 mm × 2,000 mm × 1,000 mm | – | – | Steel, Stainless Steel, Aluminum |
| Punching / Tool-bound Sheet Metal ProcessingForming | – | 500 mm × 500 mm | – | 10,000 pcs | Steel up to 4 mm material thickness, Aluminum |
| Bending (Trimming)Forming | – | 3,100 mm | – | – | Steel, Aluminum |
| Deep DrawingForming | – | 500 mm × 500 mm × 500 mm | – | – | Steel, Aluminum |
| StampingForming | – | – | – | – | Steel |
| MIG/MAG WeldingJoining | – | – | – | – | Steel, Stainless Steel, Aluminum |
| TIG WeldingJoining | – | – | – | – | Steel, Stainless Steel, Aluminum |
| CMT WeldingJoining | – | – | – | – | Steel, Aluminum |
| Spot WeldingJoining | – | – | – | – | Steel |
| Bolt WeldingJoining | – | – | – | – | Steel |
| RivetingJoining | – | – | – | – | Steel, Aluminum |
| ClippingJoining | – | – | – | – | Steel, Aluminum |
| Electro-galvanization (KTL)Surface | – | – | – | – | Steel, Coated Sheets |
| Powder CoatingSurface | – | – | – | – | Steel, Aluminum |
| Zinc PlatingSurface | – | – | – | – | Steel |
| NitridingHeat Treatment | – | – | – | – | Steel |
| HardeningHeat Treatment | – | – | – | – | Steel |
| PaintingSurface | – | – | – | – | Metal |
| Assembly / Final Assembly (Gluing, Capping, Bolting)Assembly | – | – | – | – | Metal, Plastics (Hybrid Components) |
| Design (Feasibility Analysis, Methods Planning, Design Support)Engineering | – | – | – | – | – |
| Tactile 3D Coordinate MeasuringInspection | – | 1,200 mm × 800 mm × 500 mm | – | – | – |
| Optical 3D Metrology (Handyscan)Inspection | – | – | – | – | – |
| 3D Printing UV Polyjet (Rapid Prototyping)Additive | – | – | – | – | Plastic (Photopolymer) |
| Industrial Part CleaningSurface | – | – | – | – | Metal |
| Deburring/Rounding/Surface Finishing (Grinding)Surface | – | – | – | – | Metal |
| Cold Forming & Punching (Transfer presses up to 2,500 t, Progressive tools)Forming | – | 2 m | – | – | High-strength Steel up to 980 DP, Aluminum AL5, Aluminum AL6 |
| Hard SolderingJoining | – | – | – | – | Metal (Soldering alloys) |
24 Anlagen & Maschinen
| Machine | Manufacturer / model | Quantity | Working area | Year built | Site |
|---|---|---|---|---|---|
| 3D Laser Cutting System | TRUMPF TruLaser Cell 7040 | – | 4,000 × 2,000 × 1,000 mm (6 kW CO₂ Laser) | – | Bad Tölz |
| Laser Punch Machine | TRUMPF TruMatic 6000 | – | 2,500 × 1,250 mm (2.7 kW CO₂ + Punching) | – | Bad Tölz |
| Laser Punch Machine | TRUMPF TruMatic 1000 | – | 2,500 × 1,250 mm (3.0 kW Fiber Laser + Punching) | – | Bad Tölz |
| Bending Press | TRUMPF V50 | – | 50 t, Length 1,300 mm, hydraulic | – | Bad Tölz |
| Bending Press | TRUMPF V85 | – | 85 t, Length 2,400 mm, hydraulic | – | Bad Tölz |
| Bending Press | TRUMPF V130 | – | 130 t, Length 3,100 mm, hydraulic | – | Bad Tölz |
| Bending Cell (electric, fully automatic) | TRUMPF TruBend Cell 7000 | 2 | 36 t, Length 500 mm | – | Bad Tölz |
| Deep Drawing Press | Schön | 1 | 300 t, Table 1,200 × 1,200 mm | – | Germany |
| Deep Drawing Press | Müller | 2 | 100 t, Table 800 × 700 mm or 700 × 650 mm | – | Germany |
| MIG/MAG Welding Machine | Fronius TPS 320i | – | 320 A | – | Bad Tölz |
| TIG Welding Machine | Fronius TransSteel | – | 210 A | – | Bad Tölz |
| TIG Welding Machine | Fronius W230 | – | 230 A | – | Bad Tölz |
| CMT Welding System | TRUMPF TruArc Weld 1000 | – | – | – | Bad Tölz |
| Spot Welding Machine | Dalex | – | – | – | Bad Tölz |
| Spot Welding Machine | Schlatter | – | – | – | Bad Tölz |
| Riveting/Clipping Machine | Häger 824 E-Line | – | Riveting, Clipping | – | Bad Tölz |
| Riveting/Clipping Machine | Häger 824 One Touch | – | Riveting, Clipping | – | Bad Tölz |
| Grinding Machine (Deburring/Rounding) | Lissmac | – | – | – | Bad Tölz |
| Part Cleaning System | Bio-Circle HTW 1200 | – | – | – | Bad Tölz |
| 3D Printer (UV Polyjet) | Keyence Agilista 3200W | – | – | – | Bad Tölz |
| Tactile 3D Coordinate Measuring Machine | Wenzel | – | 1,200 × 800 × 500 mm | – | Bad Tölz |
| 3D Handyscan (Optical Scanner) | Creaform Handyscan | – | without measurement range limits, Polyworks software | – | Bad Tölz |
| Transfer Press (Mass Series, Group) | – | over 46 | up to 2,500 t | – | Jilin, Chengdu, Guangdong, Tianjin (China) |
| Aluminum Welding Robots | – | – | – | – | Tianjin (China) |
Additional services
Quality
Production and inspection take place according to a triple certified QM system (IATF 16949, ISO 9001, ISO 14001). For quality assurance, we use a tactile Wenzel 3D coordinate measuring machine (1,200 × 800 × 500 mm), the portable Creaform Handyscan 3D with no measurement range limits, and outsourced processes exclusively via IATF-certified partners.
| Evidence | Geretsried | Bad Tölz |
|---|---|---|
| ISO 9001 | ||
| IATF 16949 | ||
| ISO 14001 |
History
- 2019
Since September 2019 part of the Jilin Jinhong Autoparts Group (China, founded 2005, 13 sites, over 900 employees); coordination of mass series production in China by ProTec.