
Manufacture of technical plastic granulates: 1A virgin material, industrial grades, regranulates and specialty compounds in Solingen.
WMK Plastics GmbH
Solingen (Lüneschloßstr. 42, compounding plant) · Solingen (Lüneschloßstraße 32a, grinding operation and laboratory)New on Amplifa
Company profile
WMK Plastics GmbH is a compounder of technical plastic granulates headquartered in Solingen and has been part of the LEHVOSS Group (Lehmann&Voss&Co., Hamburg) since 2015. At the compounding plant, 1A virgin material, industrial grades (virgin material with recycled materials and additives), high-quality regranulates and customer-specific specialty compounds are produced – with an annual capacity of around 9,000 tonnes of granulate. The product range includes polyamides (PA 6, PA 6.6), PC/ABS blends, POM (homopolymer and copolymer), PBT, polycarbonate and ABS; properties can be modified with additives and fillers such as glass and carbon fibres, flame retardants, lubricants or minerals, and colour settings are made to RAL, HKS, Pantone or customer specifications. In addition, the company offers toll processing of sprues, reject parts and regrind as well as application technology consulting, sampling and warehouse logistics. An in-house laboratory carries out incoming/outgoing inspection and process-accompanying quality control; customer groups include the plastics processing industry, automotive (IMDS, GADSL) and the electrical/electronics industry (WEEE, RoHS, REACh).
- Site
- Solingen
- Processes
- Compounding, Manufacture of 1A virgin material compounds, Manufacture of industrial grades (virgin material with recycled materials and additives), Manufacture of regranulates, Specialty compound development, Modification with additives and fillers (flame retardants, lubricants, impact modifiers,, Colour setting to RAL, HKS and Pantone as well as individual customer specifications, Toll processing (processing of sprues, reject parts, regrind on a toll basis)
- Materials
- Polyamide 6 (WEROMID PA 6), Polyamide 6.6 (WEROMID PA 66), Polycarbonate/ABS blend (WEROBLEND PC/ABS), Polyoxymethylene homopolymer (WEROFORM POM H), Polyoxymethylene copolymer (WEROFORM POM C), Polybutylene terephthalate (WEROTHERM PBT), Polycarbonate (WEROLON PC), Acrylonitrile butadiene styrene (WEROTHERM ABS)
- Certificates
- DIN EN ISO 9001:2015, DIN EN ISO 50001:2018, ISO 14001, IATF 16949
- Employees
- 60
- Industries
- Plastics processing industry, Automotive industry, Electrical/electronics industry, Automotive industry (IMDS, GADSL, vehicle construction), Electrical/electronics industry (WEEE, RoHS)
- 01
Application technology consulting and formulation development
- 02
Material selection (virgin material, industrial grades, regranulates)
- 03
Compounding on extruders with gravimetrics
- 04
Colour setting to RAL/HKS/Pantone or customer specification
- 05
Laboratory testing and incoming/outgoing inspection
- 06
Warehousing and logistics
Materials and processes
Polyamide 6 (WEROMID PA 6)
Technical thermoplastic for injection moulding and engineering applications.
Polyamide 6.6 (WEROMID PA 66)
Higher-temperature-stable polyamide for demanding technical parts.
Polycarbonate/ABS blend (WEROBLEND PC/ABS)
Blend for impact-resistant, dimensionally stable components, among others in electronics and automotive.
Polyoxymethylene homopolymer (WEROFORM POM H)
Stiff, low-friction engineering thermoplastic for precision parts.
Polyoxymethylene copolymer (WEROFORM POM C)
Copolymer POM for technical components with good sliding properties.
Polybutylene terephthalate (WEROTHERM PBT)
Crystalline thermoplastic for electrical and automotive applications.
Polycarbonate (WEROLON PC)
Transparent, impact-resistant thermoplastic.
Acrylonitrile butadiene styrene (WEROTHERM ABS)
Standard thermoplastic for housings and cladding parts.
Compounding on extruders with gravimetrics
Precise control of material quantities for consistent granulate quality.
Additivation and fillers
Modification with glass/carbon fibres, flame retardants, lubricants and impact modifiers, glass beads, minerals and colourants.
Toll processing
Processing of sprues, reject parts and regrind on a toll basis for recycling.
Locations

Solingen – Lüneschloßstr. 42
DECompany headquarters and compounding plant
- Lot size
- Small quantities to series production
- Materials
- PA 6, PA 6.6, PC/ABS, POM H/C, PBT, PC, ABS
- Extruders with gravimetrics

Solingen – Lüneschloßstraße 32a
DEGrinding operation and laboratory
- Grinding mill
- Laboratory equipment for plastics testing
Inside the production






Industries
Processes & technical limits
| Processes | Tolerance | Max. part | Weight | Lot size | Materials |
|---|---|---|---|---|---|
| CompoundingPlastics | – | – | – | small quantities – 9,000 tonnes of granulate annually | Polyamide 6, Polyamide 6.6, PC/ABS blend, Polyoxymethylene (homopolymer, copolymer), Polybutylene terephthalate, Polycarbonate, Acrylonitrile butadiene styrene |
| Manufacture of 1A virgin material compoundsPlastics | – | – | – | – | – |
| Manufacture of industrial grades (virgin material with recycled materials and additives)Plastics | – | – | – | – | – |
| Manufacture of regranulatesPlastics | – | – | – | – | – |
| Specialty compound developmentPlastics | – | – | – | – | – |
| Modification with additives and fillers (flame retardants, lubricants, impact modifiers,Plastics | – | – | – | – | – |
| Colour setting to RAL, HKS and Pantone as well as individual customer specificationsPlastics | – | – | – | – | – |
| Toll processing (processing of sprues, reject parts, regrind on a toll basis)Plastics | – | – | – | – | – |
| Plastics testing (physical, thermal, mechanical, rheological and electricalTesting | – | – | – | – | – |
| Application technology consulting / formulation development / recycling concept developmentEngineering | – | – | – | – | – |
| SamplingTesting | – | – | – | – | – |
| Warehouse and logistics / warehousingAssembly | – | – | – | – | – |
2 Anlagen & Maschinen
| Machine | Manufacturer / model | Quantity | Working area | Year built | Site |
|---|---|---|---|---|---|
| Extruders (with gravimetrics) | – | – | – | – | Solingen |
| Grinding mill/grinding operation | – | – | – | – | Lüneschloßstr. 32 a, 42657 Solingen |
Additional services
Quality and certifications
All extruders are equipped with gravimetrics; an in-house laboratory performs incoming/outgoing inspection as well as continuous quality control of physical, thermal, mechanical, rheological and electrical properties. Retained samples, colour sample plaques and analysis results ensure reproducibility and colour accuracy.
| Evidence | Lüneschloßstr. 42 | Lüneschloßstraße 32a |
|---|---|---|
| DIN EN ISO 9001:2015 | ||
| DIN EN ISO 50001:2018 | ||
| ISO 14001 | ||
| IATF 16949 |
History
- 2015
WMK Plastics GmbH became part of the LEHVOSS Group (Lehmann&Voss&Co., Hamburg).
- 2017
Signatory to the UN Global Compact (since December 2017).
- 2014
Initial certification of the energy management system according to DIN EN ISO 50001.