Manufacturer of plastic bottles and containers (10–2000 ml) by extrusion blow molding and injection stretch blow molding.
Joh. Sieben GmbH
Heinsberg (Am Weidenhof 3, 52525)New on Amplifa
About Joh. Sieben
Joh. Sieben GmbH, based in Heinsberg, is a medium-sized family business and part of the AST Packaging Group. The company manufactures plastic bottles and containers in sizes from 10 to 2000 ml, especially for the cosmetics industry, the food sector, detergent and cleaning product manufacturers, and chemical-technical products. The core processes are extrusion blow molding (EBM) with materials such as PE, PP, HDPE and PVC, as well as one- and two-stage injection stretch blow molding (ISBM) for (r)PET and PETG. In addition to a standard product portfolio (including Alien Trigger, POL, Professional, Tapered Round, Standard Round), the company develops custom packaging from concept to finished product. Material preparation includes color dosing as well as the use of masterbatches and regranulate; HDPE bottles and canisters are certified according to RecyClass (EN 15343:2007, ISO 22095:2020). The goal is a circular material share of 50% by 2030 – together with customers and partners.
- Site
- Heinsberg
- Processes
- Extrusion blow molding (EBM), Injection stretch blow molding (ISBM), Manufacture of plastic bottles and containers (10 to 2000 ml), Development of custom packaging (product development), Quality control with high-tech measurement systems, Toolmaking, Color dosing / material preparation (masterbatches, regranulate), HDPE bottles and canisters (RecyClass-certified)
- Materials
- PET, PETG, PP, PE, HDPE, PVC, rPET, Extrusion blow molding
- Certificates
- ISO 9001:2015, ISO 50001:2018, GKV Code of Conduct (Plastics Processing Industry), RecyClass Recycled Plastic Traceability (EN 15343:2007, ISO 22095:2020), Halal certification, EcoVadis Bronze Medal, GKV Code of Conduct, RecyClass Recycled Plastic Traceability
- Founded
- 1875
- Employees
- approx. 100
- Industries
- Cosmetics, Retail, Food, Detergents & cleaning products, Chemical-technical products
- 01
Consulting/Product development
- 02
Material preparation (color dosing, masterbatches, regranulate)
- 03
Extrusion blow molding (EBM)
- 04
Injection stretch blow molding (ISBM)
- 05
Quality control/Measurement systems
- 06
Shipping
Materials & Processes
Extrusion blow molding
Core process for bottles and containers made of PE, PP, HDPE and PVC with durable product results.
Injection stretch blow molding
One- and two-stage process for (r)PET with high durability and precision.
PET
Used in injection stretch blow molding for transparent bottles and containers.
PETG
Used for plastic containers within the scope of ISO 9001 certification.
PP
Processing material in extrusion blow molding.
PE
Processing material in extrusion blow molding.
HDPE
For RecyClass-certified bottles and canisters, also with recycled content.
PVC
Processing material in extrusion blow molding.
rPET
Recycled PET for sustainable packaging solutions in the ISBM process.
Sites
Heinsberg
DEProduction and administration
- Materials
- PET, PETG, PP, PE, HDPE, PVC, rPET
- Extrusion blow molding (EBM)
- Injection stretch blow molding (ISBM)
- High-tech measurement systems
- Color dosing systems
- Toolmaking
Parts
Inside the production
Industries
Processes & technical limits
| Processes | Tolerance | Max. part | Weight | Lot size | Materials |
|---|---|---|---|---|---|
| Extrusion blow molding (EBM)Plastics | – | – | – | – | PE, PP, HDPE, PVC, rPET |
| Injection stretch blow molding (ISBM)Plastics | – | – | – | – | PET, rPET |
| Manufacture of plastic bottles and containers (10 to 2000 ml)Plastics | – | – | 10 ml – 2000 ml | – | PET, PETG, PP, PE, PVC |
| Development of custom packaging (product development)Engineering | – | – | – | – | – |
| Quality control with high-tech measurement systemsTesting | – | – | – | – | – |
| ToolmakingEngineering | – | – | – | – | – |
| Color dosing / material preparation (masterbatches, regranulate)Plastics | – | – | – | – | PE, PP |
| HDPE bottles and canisters (RecyClass-certified)Plastics | – | – | – | – | HDPE, recycled HDPE |
Additional services
Quality
High-tech measurement systems and strict quality controls accompany the entire production process; quality assurance carries out process inspections, first-article inspections and measurement data analyses.
| Evidence | Heinsberg |
|---|---|
| ISO 9001:2015 | |
| ISO 50001:2018 | |
| GKV Code of Conduct | |
| RecyClass Recycled Plastic Traceability |
History
- 1875
Founded by Johann Sieben for the manufacture of willow baskets for transport.
- 2024
Renewal of ISO 9001 certification by gutcert (no. Q-24-25191-EN).
- 2030
Goal: 50% circular material share – together with customers and partners.