Injection-molded series parts and assemblies made of thermoplastics with in-house toolmaking and product development
Lüttgens Polymer Technologies GmbH
Heiligenhaus (DE) · Nielbark (PL)New on Amplifa
About Lüttgens
Lüttgens Polymer Technologies GmbH in Heiligenhaus manufactures technical injection-molded parts and assemblies made of thermoplastic polymers for the automotive industry, the electrical industry, mechanical and plant engineering, and consumer goods. The company was founded in 1937 and initially began with the processing of thermoset molding compounds, before thermoplastics came into use from 1950 and the 2K injection molding process from 1970. In its own toolmaking shop, injection molds and fixtures are manufactured using CNC milling and EDM. Series production comprises 40 injection molding machines with clamping forces of 6 to 10,000 kN for product weights of 0.1 to 4,000 g; special processes are gas internal pressure technology (GIT) and 2K injection molding. The offering is complemented by product development with CAD/CAM and fill/warpage studies, surface technology, joining technology, as well as assembly and kitting. In addition to the main plant in Heiligenhaus, the company operates production plants in Nielbark, Poland. In 2025, the company was renamed Lüttgens Polymer Technologies GmbH under the leadership of Dr. Richard Sobotta.
- Site
- Heiligenhaus
- Processes
- Injection molding, 2K - Two-component injection molding, GIT gas internal pressure technology, Module assembly, Kitting and final assembly, Pad printing, Screen printing, Film hot stamping
- Materials
- Thermoplastic polymers, Thermoset molding compounds (historical, production discontinued in 1972), Gas internal pressure technology (GIT), Two-component injection molding
- Certificates
- DIN EN ISO 9001:2015, IATF 16949, DIN EN ISO 14001, ISO 9001, ISO 14001
- Founded
- 1937
- Industries
- Automotive industry, Electrical industry, Mechanical and plant engineering, Consumer goods
- 01
Product development and design (3D CAD/CAM, FEM, fill/warpage studies)
- 02
Prototyping
- 03
Toolmaking (CNC milling, EDM)
- 04
Injection molding series production (incl. 2K and GIT)
- 05
Surface technology (pad printing, screen printing, hot stamping, painting)
- 06
Joining technology (ultrasonic welding, heat staking, bonding)
- 07
Assembly of module groups, kitting, final assembly
- 08
Quality control
Materials and Processes
Thermoplastic polymers
Base material for technical functional parts and assemblies in injection molding, 2K and GIT production.
Gas internal pressure technology (GIT)
Special process for hollow, weight-optimized molded parts without compacting the entire wall.
Two-component injection molding
Process for joining two plastic components in one tool, in use since 1970.
Locations
Heiligenhaus (administration, Hasselbecker Straße 16)
DEAdministration and production (injection molding plant)
- Part weight / size
- 0.1–4,000 g
- Materials
- Thermoplastic polymers
- 40 injection molding machines (6–10,000 kN)
- 3D CAD/CAM HSC machining centers
- Die sinking EDM machines
- Wire EDM machines
- Automatic lathes
- ZEISS 3D coordinate measuring machine
- Double-flank gear rolling tester
- Universal testing machine
Heiligenhaus (Schopshofer Weg 3)
DEShipping and goods receiving
Nielbark (PL)
PLProduction plant (opened 2016, expansion 2019; initial construction 2007)
- Materials
- Thermoplastic polymers
Components
Inside the production
Industries
Processes & technical limits
| Processes | Tolerance | Max. part | Weight | Lot size | Materials |
|---|---|---|---|---|---|
| Injection moldingPlastics | – | – | 0.1 g – 4,000 g | – | Thermoplastic polymers |
| 2K - Two-component injection moldingPlastics | – | – | – | – | Thermoplastic polymers |
| GIT gas internal pressure technologyPlastics | – | – | – | – | Thermoplastic polymers |
| Module assemblyAssembly | – | – | – | – | Thermoplastic polymers |
| Kitting and final assemblyAssembly | – | – | – | – | Thermoplastic polymers |
| Pad printingSurface | – | – | – | – | Thermoplastic polymers |
| Screen printingSurface | – | – | – | – | Thermoplastic polymers |
| Film hot stampingSurface | – | – | – | – | Thermoplastic polymers |
| PaintingSurface | – | – | – | – | Thermoplastic polymers |
| Laser markingSurface | – | – | – | – | Thermoplastic polymers |
| Ultrasonic weldingJoining | – | – | – | – | Thermoplastic polymers |
| Heat stakingJoining | – | – | – | – | Thermoplastic polymers |
| BondingJoining | – | – | – | – | Thermoplastic polymers |
| Toolmaking for injection molds and fixtures (milling, EDM)Engineering | – | – | – | – | Tool steel |
| Product development with CAD (Cimatron, Catia V5), 3D FEM calculation, 3D fill/warpage studiesEngineering | – | – | – | – | – |
| Prototyping and development qualification through testingEngineering | – | – | – | – | – |
| Quality control with tactile and optical 3D metrology, FMEATesting | – | – | – | – | – |
8 Anlagen & Maschinen
| Machine | Manufacturer / model | Quantity | Working area | Year built | Site |
|---|---|---|---|---|---|
| Injection molding machines | – | 40 | Clamping forces 6 kN to 10,000 kN | – | Heiligenhaus (DE) and Nielbark (PL) |
| 3D CAD/CAM HSC machining centers | – | – | – | – | Heiligenhaus |
| Die sinking EDM machines | – | – | – | – | Heiligenhaus |
| Wire EDM machines | – | – | – | – | Heiligenhaus |
| Automatic lathes | – | – | – | – | Heiligenhaus |
| 3D coordinate measuring machine | ZEISS | 1 | – | 2005 | Heiligenhaus |
| Double-flank gear rolling tester | – | 1 | – | 2011 | Heiligenhaus |
| Universal testing machine (compression and tensile tests) | – | 1 | – | 2012 | Heiligenhaus |
Additional services
Quality
Quality control is performed using tactile and optical 3D metrology, design and process FMEA, and Babtec CAQ; in addition, products are tested externally. A ZEISS 3D coordinate measuring machine, a double-flank gear rolling tester for gears and drive pinions, and a universal testing machine for compression and tensile tests complement the inspection equipment.
| Evidence | Heiligenhaus |
|---|---|
| ISO 9001 | |
| IATF 16949 | |
| ISO 14001 |
Company History
- 1937
Founding of Dietrich Lüttgens GmbH & Co. KG by Dietrich Lüttgens; start of processing thermoset molding compounds
- 1950
Start of thermoplastics processing
- 1970
First use of the 2K injection molding process
- 1972
Discontinuation of thermoset production
- 1980
Expansion of the operations building to 6,100 m²
- 1990
First use of gas internal pressure technology (GIT)
- 1995
Start of 3-D tool design and product development with CAD/CAM system Cimatron
- 1999
First 3D fill and warpage studies with SigmaSOFT
- 2004
Expansion of the CAD environment with Catia V5
- 2005
Enlargement of the operations building to 7,800 m²; 3-D CNC measurement with ZEISS 3D coordinate measuring machine
- 2007
Commissioning of the newly built 2,000 m² plant in Poland
- 2010
Restructuring of production in Germany and Poland
- 2011
Double-flank gear rolling tester for metrology of gears and drive pinions
- 2012
Universal testing machine for compression and tensile tests; 75th anniversary
- 2016
Opening of a new production plant in Nielbark, Poland
- 2019
Production expansion building in Nielbark
- 2025
Renaming to Lüttgens Polymer Technologies GmbH under new leadership of Dr. Richard Sobotta