
Development and production of regranulates, granulates and compounds from post-industrial and post-consumer plastics at the Goldenstedt site.

WELA-Plast GmbH
49424 Goldenstedt (Headquarters)New on Amplifa
Raw Material Specialist for Plastics
WELA-Plast GmbH, founded in Goldenstedt in 1991, is a raw material specialist for plastics and a supplier of custom raw materials for the plastics processing industry. The company develops and produces regranulates, granulates and compounds from post-industrial and post-consumer material, including the adjustment of technical properties through colorants, fillers and additives. The process-reliable process chain comprises shredding, extrusion with filtration and degassing, and hot granulation; in addition, contract granulation, refining and the distribution of plastics are offered. Around 40,000 m² are available at the Goldenstedt site for production, warehousing and administration, including a homogenization system, a filling system, metal detection coils and an in-house laboratory for incoming goods inspection and ongoing production monitoring. Materials processed include LD-PE, HD-PE, PP, PS, ABS, PA and TPE/TPV; certified recyclates include rPE-LD, rPE-HD, rPP and rABS with a traceable recyclate content. Customers are found in the plastics industry, packaging, agriculture and the automotive sector; delivery takes place across Europe and internationally. As a certified waste management specialist company under § 56 KrWG, WELA-Plast stores, treats and recovers plastic waste at the site.
- Site
- Goldenstedt
- Processes
- Production of regranulates and granulates (recycling/processing), Compounding of plastics (adjustment of technical properties through colorants, fillers and, Contract granulation (shredding, extrusion, filtration, granulation), Refining of plastics, Recycling and recovery of plastics (collection, transport, storage, treatment, recovery), Quality assurance in the in-house laboratory (incoming goods inspection, production monitoring), Production of regranulates and granulates from post-industrial and post-consumer material, Compounding (colorants, fillers, additives)
- Materials
- LD-PE, HD-PE, PE/PP, PP, PS, ABS, PA, TPE
- Certificates
- ISO 9001:2015, Certified waste management specialist company (§ 56 KrWG / EfbV), RecyClass Recycling Process Certificate (EN 15343:2007)
- Founded
- 1991
- Industries
- Plastics industry, Packaging, Agricultural, Automotive
- 01
Incoming goods and inspection of input material
- 02
Metal detection and pre-shredding/shredding (flakes/snippets 30–40 mm)
- 03
Extrusion with filtration and vacuum degassing
- 04
Plasticizing, mixing and homogenizing
- 05
Hot granulation
- 06
Compounding with colorants, fillers and additives
- 07
Laboratory QA and filling
- 08
Storage and distribution
Site

Goldenstedt
DEHeadquarters: production, warehousing and administration
- Materials
- LD-PE, HD-PE, PE/PP, PP, PS, ABS, PA, TPE/TPV, rPE-LD, rPE-HD, rPP, rABS
- Shredder/pre-shredding
- Extrusion lines (filtration, degassing, hot granulation)
- Homogenization system
- Filling system
- Metal detection coils
- In-house QA laboratory
Industries
Processes & technical limits
| Processes | Tolerance | Max. part | Weight | Lot size | Materials |
|---|---|---|---|---|---|
| Production of regranulates and granulates (recycling/processing)Plastics | – | – | – | – | LD-PE, HD-PE, PE/PP, PP, PS, ABS, PA, TPE/TPV, rPE-LD, rPE-HD, rPP, rABS |
| Compounding of plastics (adjustment of technical properties through colorants, fillers andPlastics | – | – | – | – | LD-PE, HD-PE, PE/PP, PP, PS, ABS, PA, TPE/TPV |
| Contract granulation (shredding, extrusion, filtration, granulation)Plastics | – | – | – | – | Plastic waste, Plastic swarf, Plastic packaging |
| Refining of plasticsPlastics | – | – | – | – | LD-PE, HD-PE, PE/PP, PP, PS, ABS, PA, TPE/TPV |
| Recycling and recovery of plastics (collection, transport, storage, treatment, recovery)Plastics | – | – | – | – | Plastic waste, Textile fiber waste, Plastic swarf and turnings, Packaging made of plastic, Composite packaging, Plastics and rubber |
| Quality assurance in the in-house laboratory (incoming goods inspection, production monitoring)Testing | – | – | – | – | – |
5 Anlagen & Maschinen
| Machine | Manufacturer / model | Quantity | Working area | Year built | Site |
|---|---|---|---|---|---|
| Shredder / pre-shredding | – | – | – | – | Goldenstedt |
| Extrusion lines (with filtration, degassing, hot granulation) | – | – | – | – | Goldenstedt |
| Homogenization system | – | – | – | – | Goldenstedt |
| Filling system | – | – | – | – | Goldenstedt |
| Metal detection coils | – | – | – | – | Goldenstedt |
Additional services
Quality and Certification
Incoming raw materials are subject to strict incoming goods inspections; ongoing production monitoring of the regranulates takes place in the in-house laboratory. The processes are regularly externally audited (ISO 9001:2015, waste management specialist company, RecyClass).
| Evidence | Goldenstedt |
|---|---|
| ISO 9001:2015 | |
| Certified waste management specialist company (§ 56 KrWG / EfbV) | |
| RecyClass Recycling Process Certificate (EN 15343:2007) |
History
- 1991
Founded in Goldenstedt
- 2022
Initial ISO 9001 certification on 20.11.2022
- 2025
Initial RecyClass certification on 19.02.2025, ISO 9001 recertification audit on 11.09.2025, issuance of the waste management specialist company certificate on 05.12.2025