Manufacturing of technical plastic parts by injection molding and extrusion – from design through prototyping to series production.
Barnstorfer Kunststofftechnik GmbH & Co. KG
Barnstorf · Cleveland, TN (USA)New on Amplifa
About BARKU
Barnstorfer Kunststofftechnik GmbH & Co. KG (BARKU) has been developing and producing technical plastic parts since 1977. The range of services includes precision injection-molded parts, profiles and pipes from extrusion, as well as assemblies and complete systems. On more than 70 injection molding machines (200–11,000 kN), components with a shot weight of up to 9 kg are produced; 13 extrusion lines process around 10,000 t of thermoplastics per year into profiles and more than 15,000 km of pipes. Materials include PVC, PP, PE, POM, PA, ABS, ASA, TPU/TPE and PUR, including 2-/3-component technology, insert technology and co-/tri-extrusion. The company also offers design (CAD/CREO, FEM), prototyping, in-house toolmaking, assembly and warehouse logistics from a single source. Key focus areas are poultry farming and greenhouse applications; around 170 employees produce in Barnstorf in three-shift operation on 67,000 m².
- Site
- Barnstorf
- Processes
- Injection molding, 2- or 3-component injection molding, Insert technique (inserting and overmolding of metal components), Profile extrusion, Co-extrusion, Tri-extrusion, Pipe extrusion, Downstream processing (drilling, punching, milling, socketing)
- Materials
- PVC (rigid and flexible PVC), POM, PP, PP TV, PP GF, PE, TPU, PUR
- Certificates
- DIN EN ISO 9001 (QM system implemented by analogy), DIN EN ISO 9001 (implemented by analogy)
- Founded
- 1977-10-01
- Employees
- around 170
- Industries
- Poultry farming (drinking systems, rearing, fattening, laying phase), Agriculture / greenhouses (evaporative cooling), Agriculture/greenhouses (evaporative cooling)
- 01
Design / product development (CAD/CREO, FEM)
- 02
Prototyping (3D printing, STL, vacuum casting, pre-series tooling)
- 03
Toolmaking (Moldflow studies, warpage analyses)
- 04
Injection molding series production
- 05
Extrusion (profiles/pipes, co-/tri-extrusion)
- 06
Post-processing (drilling, punching, milling, socketing)
- 07
Assembly of assemblies
- 08
Quality assurance
- 09
Warehouse / Logistics
Materials & Processes
Rigid and flexible PVC
Main material for extruded pipes and profiles, e.g. for drinking systems.
Polypropylene (PP, PP TV, PP GF)
Injection molding and extrusion material for technical components, also glass-fiber reinforced.
Polyethylene (PE)
Processed in extrusion and injection molding for technical applications.
Polyoxymethylene (POM)
Precision material for pipes, profiles and injection-molded parts.
Polyamide 6 and 6.6 (with/without GF, GK)
Technical injection molding material for highly stressed components.
ABS, ASA, polystyrene (PS)
Thermoplastics for injection-molded parts in various applications.
TPU and TPE
Elastomers for soft components, e.g. in 2-component technology.
Polyurethane (PUR)
Processed in extrusion and injection molding for technical applications.
Locations
Barnstorf
DEHeadquarters / Manufacturing
- Part weight / size
- Shot weight up to 9 kg
- Lot size
- Large-scale series (reproducible in the millions)
- Materials
- PVC, PP, PE, POM, PA, ABS, ASA, TPU/TPE, PUR
- More than 70 injection molding machines 200–11,000 kN
- 13 extrusion lines
- 3D printers (filament, STL)
- CNC milling machine (prototyping)
- Vacuum casting system
- Assembly automats
Cleveland, Tennessee
USASubsidiary BARKU PLASTICS LLC
Components & Products
Inside the production
Industries
Processes & technical limits
| Processes | Tolerance | Max. part | Weight | Lot size | Materials |
|---|---|---|---|---|---|
| Injection moldingPlastics | – | – | 9 kg | – | ABS, ASA, PS, PP, PP TV, PP GF, PE, TPE, TPU, POM, PA 6, PA 6.6, PK, PVC |
| 2- or 3-component injection moldingPlastics | – | – | – | – | – |
| Insert technique (inserting and overmolding of metal components)Plastics | – | – | – | – | Metal, Plastics |
| Profile extrusionPlastics | – | – | – | – | PVC (rigid and flexible PVC), Polyolefins, POM, PP, PE, TPU/PUR |
| Co-extrusionPlastics | – | – | – | – | – |
| Tri-extrusionPlastics | – | – | – | – | – |
| Pipe extrusionPlastics | – | – | – | – | PVC, POM, PP, PE, TPU/PUR |
| Downstream processing (drilling, punching, milling, socketing)Machining | – | – | – | – | – |
| Assembly (manual, semi- or fully automatic, complex joining techniques)Assembly | – | – | – | – | – |
| Design / product development (3D-CAD, CREO, FEM analyses)Engineering | – | – | – | – | – |
| Prototyping (filament printing, STL/stereolithography, CNC milling)Additive | – | – | – | – | – |
| Vacuum casting (zero series)Plastics | – | – | – | – | – |
| Toolmaking (Moldflow studies, warpage analyses)Engineering | – | – | – | – | – |
| Quality management (implemented in accordance with DIN EN ISO 9001)Testing | – | – | – | – | – |
6 Anlagen & Maschinen
| Machine | Manufacturer / model | Quantity | Working area | Year built | Site |
|---|---|---|---|---|---|
| Injection molding machines | – | > 70 | Clamping forces 200 to 11,000 kN, shot weight up to 9 kg | – | Barnstorf |
| Extrusion lines | – | 13 | approx. 10,000 t of thermoplastics/year, > 15,000 km of pipes/year | – | Barnstorf |
| 3D printers (filament printing, STL/stereolithography) | – | – | – | – | Barnstorf |
| CNC milling machine (prototyping) | – | – | – | – | Barnstorf |
| Vacuum casting system | – | – | – | – | Barnstorf |
| Assembly automats (high-precision fully automatic machines) | – | – | – | – | Barnstorf |
Additional services
Reference customers
Quality
A quality management system implemented in accordance with DIN EN ISO 9001 forms the basis for components and assemblies proven in the millions. Comprehensive quality assurance with established processes and procedures ensures high delivery performance.
| Evidence | Barnstorf |
|---|---|
| DIN EN ISO 9001 (implemented by analogy) |
History
- 1977
Founded on 1 October 1977 as a plastics supplier to LUBING Maschinenfabrik GmbH by Egon Schumacher
- 2003
Foundation of the subsidiary BARKU PLASTICS LLC in Cleveland/Tennessee, USA
- 2022
Significant share of energy requirements covered by own photovoltaic system
- 2023
Installation of extensive battery storage
- 2024
Main plant Barnstorf completely switched to electricity from renewable sources