Manufacture of stamped and deep-drawn parts, cold-formed parts, and plastic injection molding including toolmaking, surface and heat treatment for the automotive industry
Mertens GmbH & Co.
Gütersloh · MeeraneNew on Amplifa
About the Mertens Group
Mertens GmbH & Co. was founded in 1924 in Gütersloh, remains family-owned to this day, and has evolved from a metalworking business into a group of companies for metal and plastics processing. At the headquarters in Gütersloh, stamped and deep-drawn parts made of stainless steel and quality steels of various alloys are produced, along with cold-formed parts, cold extrusion, drawing and embossed parts, and springs, complemented by assembly, painting, galvanic surface finishing (Zn-Ni), and heat treatment. KDM Automotive GmbH, founded in 1990 and relocated to Meerane in 1997, produces plastic injection-molded parts, including two-component and gas-assist injection molding, liquid silicone (LSR) and EPDM processing, as well as metal-plastic composites. The group manufactures in medium and large series for the automotive industry, including components for closing and latching systems, and covers the entire value chain from development, design, and tool and mold making through to series production.
- Site
- Gütersloh
- Processes
- Stamped and deep-drawn parts (stamping technology, transfer presses), Cold-formed parts / cold forming presses, Cold extrusion, drawing, stamped and embossed parts, Spring manufacturing, Zinc die casting, Injection molding technology, Two-component technology (2-K injection molding), Gas-assist injection technology
- Materials
- Stainless steel, Quality steels in various alloys, Zinc, EPDM, LSR (liquid silicone), Plastic, Rubber
- Certificates
- IATF 16949:2016
- Founded
- 1924
- Industries
- Automotive
- 01
Development, design and project engineering
- 02
Tool and mold making incl. prototype construction
- 03
Stamped/deep-drawn parts and cold forming (transfer presses, stage presses)
- 04
Zinc die casting and injection molding (2-K, gas-assist, micro injection
- 05
Heat treatment
- 06
Surface treatment (painting, electroplating Zn-Ni, barrel finishing, pad
- 07
Assembly incl. subassemblies
- 08
3D measurement and quality inspection
Materials & Processes
Stainless steel
Material for stamped and deep-drawn parts such as door closing brackets and striker plates.
Quality steels in various alloys
Base material for stamped, deep-drawn and cold-formed parts as well as springs.
Zinc
Material for the zinc die casting operated at the Gütersloh site.
EPDM
Rubber material processed on the injection molding machines of KDM Automotive GmbH.
LSR (liquid silicone)
Processing via Liquid Injection Moulding for plastic parts.
Rubber
Used for rubber-metal composites.
Plastic
Material for injection-molded parts, holders and covers as well as metal-plastic composites.
Locations
Gütersloh
DEHeadquarters: stamped/deep-drawn parts, cold-formed parts, springs, assembly, surface and heat treatment, tool- and
- Lot size
- Medium and large series
- Materials
- Stainless steel, quality steels, zinc
- High-performance transfer presses (Müller-Weingarten/Schuler)
- Stage presses
- Single presses
- Cold forming presses
- Zinc die casting
- DMG machining centers
- DMG HSC milling machines
- AGIE wire and sinker EDM machines
- DMG laser ablation technology
- Multi-chamber painting system with robot application and power wash
- Electroplating line
- Barrel finishing systems
Meerane
DEKDM Automotive GmbH: injection molding production of plastic parts incl. assembly of subassemblies
- Materials
- Plastic, EPDM, LSR
- Injection molding machines (KraussMaffei/Engel/Arburg)
- Gas-assist injection technology
- Two-component technology
- Micro injection molding
- Assembly automation technology
Components
Inside the production
Industries
Processes & technical limits
| Processes | Tolerance | Max. part | Weight | Lot size | Materials |
|---|---|---|---|---|---|
| Stamped and deep-drawn parts (stamping technology, transfer presses)Forming | – | – | – | Medium and large series | Stainless steel, Quality steels in various alloys |
| Cold-formed parts / cold forming pressesForming | – | – | – | – | Steel, Stainless steel |
| Cold extrusion, drawing, stamped and embossed partsForming | – | – | – | – | Steel, Stainless steel |
| Spring manufacturingForming | – | – | – | – | – |
| Zinc die castingCasting | – | – | – | – | Zinc |
| Injection molding technologyPlastics | – | – | – | – | – |
| Two-component technology (2-K injection molding)Plastics | – | – | – | – | – |
| Gas-assist injection technologyPlastics | – | – | – | – | – |
| Micro injection moldingPlastics | – | – | – | – | – |
| EPDM processingPlastics | – | – | – | – | EPDM |
| LSR processing (liquid silicone processing / Liquid Injection Moulding)Plastics | – | – | – | – | LSR (liquid silicone) |
| Metal-plastic composites / rubber-metal compositesJoining | – | – | – | – | Metal, Plastic, Rubber |
| Pad printingSurface | – | – | – | – | Plastic |
| Multi-chamber painting system with robot application and power wash (painting)Surface | – | – | – | – | – |
| Galvanic surface treatment, Zn-Ni surface finishingSurface | – | – | – | – | Steel |
| Barrel finishing (tumble deburring)Surface | – | – | – | – | – |
| Heat treatmentHeat treatment | – | – | – | – | Steel |
| Production tooling and prototype construction (mold making)Engineering | – | – | – | – | – |
| HSC milling / machining center milling (toolmaking)Machining | – | – | – | – | Steel, Metal |
| Wire and sinker EDMMachining | – | – | – | – | Metal |
| Laser ablation technologyMachining | – | – | – | – | – |
| Start hole piercingMachining | – | – | – | – | – |
| MachiningMachining | – | – | – | – | – |
| Assembly / assembly automation technology (incl. assembly of subassemblies)Assembly | – | – | – | – | – |
| Development, design and project engineeringEngineering | – | – | – | – | – |
| 3D measurement / quality inspection (coordinate metrology, hardness and tensile testing)Testing | – | – | – | – | – |
16 Anlagen & Maschinen
| Machine | Manufacturer / model | Quantity | Working area | Year built | Site |
|---|---|---|---|---|---|
| High-performance transfer presses | Müller-Weingarten / Schuler | – | – | – | Gütersloh |
| Stage presses | – | – | – | – | Gütersloh |
| Single presses | – | – | – | – | Gütersloh |
| Cold forming presses | – | – | – | – | Gütersloh |
| Injection molding machines | KraussMaffei / Engel / Arburg | – | – | – | Meerane (KDM GmbH) |
| Multi-chamber painting system with robot application and power wash | – | – | – | – | Gütersloh |
| Electroplating line | – | – | – | – | Gütersloh |
| Barrel finishing systems | – | – | – | – | Gütersloh |
| Machining centers | DMG | – | – | – | Gütersloh |
| HSC milling machines | DMG | – | – | – | Gütersloh |
| Wire and sinker EDM machines | AGIE | – | – | – | Gütersloh |
| Laser ablation technology | DMG | – | – | – | Gütersloh |
| 3D coordinate measuring machine | Mitutoyo | – | – | – | – |
| Optical measuring device (Triple Scan) | GOM Atos triple scan | – | – | – | – |
| Optical measuring devices | Mitutoyo | – | – | – | – |
| Coating thickness gauge | Fischer Scope | – | – | – | – |
Additional services
Quality & Certification
Product-accompanying quality inspections, 3D measurement, laboratory analyses and load tests document compliance with quality requirements. The metrology includes, among others, a Mitutoyo 3D coordinate measuring machine, a GOM Atos Triple Scan optical measuring device, coating thickness gauges as well as hardness testing to Vickers/Brinell and tensile-compression force testing machines.
| Evidence | Gütersloh | Meerane |
|---|---|---|
| IATF 16949:2016 |
History
- 1924
Founded as a metalworking business in Gütersloh; still family-owned today
- 1990
Foundation of KDM GmbH in Glauchau
- 1997
Relocation of KDM GmbH to Meerane