
Coperion manufactures twin-screw extruders, compounding systems, and dosing, conveying and bulk solids technology for the plastics and process industries.
Coperion GmbH
Stuttgart (DE) · Niederlenz (CH)New on Amplifa
About Coperion
Coperion GmbH, headquartered in Stuttgart, is a supplier of twin-screw extruders, compounding machines and bulk solids handling systems. The portfolio includes the ZSK and STS extruder series, pelletizers, dosing and weighing technology (Coperion K-Tron), pneumatic conveying systems, mixers, rotary valves, elutriators, bulk solids heat exchangers and silo degassing systems (EcoFresh). In addition to individual machines, the company develops and implements complete and partial plants for plastics production, compounding and plastics processing, including engineering, project management, installation, commissioning and aftermarket service. Coperion serves industries such as plastics, plastics recycling, chemicals, batteries, food and pet food, pharmaceuticals, cosmetics, minerals and petrochemicals. According to the company, its business is built on more than 140 years of experience in mixing technology; worldwide, more than 15,000 compounding machines and extruders as well as more than 20,000 feeders and pneumatic conveying systems are installed. The group operates around 50 locations worldwide, including the Stuttgart headquarters and the Niederlenz (Switzerland) site of the Coperion K-Tron brand.
- Site
- Stuttgart
- Processes
- Twin-screw extrusion / compounding, Compounding (ZSK, STS, CTE twin-screw extruders), PET recycling systems, Conveying, dosing, weighing (bulk material handling), Pelletizing (strand, underwater, water-ring, eccentric, concentric pelletizers), Degassing/deodorization (EcoFresh silo deodorization), Heat treatment of bulk solids (Bulk-X-Change heat exchanger), Screening/separation (elutriators: UGS, SRS, HFS, TSM)
- Materials
- HDPE (recycled, FDA food-grade), Polypropylene (recycled, FDA food-grade), PET, PVC, HFFR, XLPE, PA, PE
- Certificates
- FAT (Factory Acceptance Test)
- Employees
- 5000
- Industries
- Plastics, Plastics recycling, Chemicals, Batteries, Food & Pet Food, Pharmaceuticals
- 01
Process engineering consulting
- 02
Engineering and design
- 03
Manufacturing of machines and components
- 04
Project management
- 05
Installation and site management
- 06
Commissioning and training
- 07
Aftermarket service and spare parts
Materials & Processes
ZSK Twin-Screw Extruder
High-performance compounding series (MEGAcompounder, Mc18, Mv14, MEGAlab, Food, Kombiplast) for plastics, recycling, chemicals, batteries and food.
STS Twin-Screw Extruder
Cost-effective compounding series (Mc11, Mc PLUS), among other things for cable compounds such as PVC, HFFR and XLPE as well as masterbatch.
CTE PLUS Twin-Screw Extruder
Series manufactured in Nanjing with screw diameters of 22–165 mm and throughputs up to 5,000 kg/h.
Pelletizers
Strand, underwater (up to 100 t/h), water-ring (approx. 15 t/h), eccentric and concentric pelletizers for various thermoplastics.
Dosing and Weighing Technology
Single/twin-screw, vibratory, BSP, belt and liquid feeders with SFT weighing technology for powders, pellets and liquids.
Bulk-X-Change Heat Exchanger
Bulk solids heat exchanger for cooling and heating of pellets, powders and food products.
Silo Degassing
Degassing and deodorization of compound pellets in silos (up to 132 m³, up to 6.8 t/h).
Locations

Stuttgart
DEHeadquarters, engineering and manufacturing
- Materials
- Steel, stainless steel
- ZSK twin-screw extruder manufacturing
- Technical center / test centers
Niederlenz
CHCoperion K-Tron site (dosing and conveying technology)
- Materials
- Stainless steel
- Feeders and weighing systems
- Pneumatic conveying systems
Products & Components





Inside the production




Industries
Processes & technical limits
| Processes | Tolerance | Max. part | Weight | Lot size | Materials |
|---|---|---|---|---|---|
| Twin-screw extrusion / compoundingPlastics | – | – | – | – | Polyolefins, Engineering plastics, Recyclates (rHDPE, rPP), PVC, PET, PA, PE, PP, Battery materials, Food, Pharmaceuticals |
| Compounding (ZSK, STS, CTE twin-screw extruders)Plastics | – | – | 1 kg/h – 135 t/h | – | Polyolefins, Engineering plastics, Recyclates, Cable compounds (PVC, HFFR, XLPE), Masterbatch, Powder coatings, Battery materials |
| PET recycling systemsPlastics | – | – | – | 500 kg/h – 10 t/h | PET |
| Conveying, dosing, weighing (bulk material handling)Plastics | – | – | – | – | Powders, Pellets, Bulk solids |
| Pelletizing (strand, underwater, water-ring, eccentric, concentric pelletizers)Plastics | – | – | 100 t/h | – | Thermoplastics, Polyolefins, Temperature- and shear-sensitive products |
| Degassing/deodorization (EcoFresh silo deodorization)Plastics | – | – | – | – | Plastic pellets, Compounds |
| Heat treatment of bulk solids (Bulk-X-Change heat exchanger)Heat treatment | – | – | – | – | Plastic pellets, Fertilizers, Mineral powders, Food |
| Screening/separation (elutriators: UGS, SRS, HFS, TSM)Testing | – | – | 120 t/h | – | Pellets, Powders |
| Food extrusionPlastics | – | – | – | – | Cereals, Pet food, HMMA plant-based meat alternatives |
14 Anlagen & Maschinen
| Machine | Manufacturer / model | Quantity | Working area | Year built | Site |
|---|---|---|---|---|---|
| ZSK twin-screw extruder (MEGAcompounder, Mc18, Mv14, MEGAlab, Food, NT, Kombiplast) | Coperion ZSK Mc18 / ZSK MEGAcompounder / ZSK Mv14 / ZSK MEGAlab / Kombiplast | – | – | – | – |
| STS twin-screw extruder (Mc11, Mc PLUS, lab, two-stage) | Coperion STS Mc11 / STS Mc PLUS / STS 25 Mc11 | – | Specific torque Mc11: 11.3 Nm/cm3; Mc PLUS: 13.6 Nm/cm3 | – | – |
| CTE PLUS twin-screw extruder | Coperion CTE 20 PLUS to CTE 165 PLUS | – | Screw diameter 22-165 mm, max. speed 600 rpm, output up to 5,000 kg/h | – | Nanjing |
| Pelletizers (UG underwater, WRG water-ring, EGR eccentric, ZGF concentric, strand pelletizers) | Coperion UG / WRG / EGR / ZGF | – | UG up to 100 t/h; WRG approx. 15 t/h | – | – |
| Gravimetric feeders (single/twin-screw, vibratory, BSP, belt, liquid) | Coperion K-Tron K4G, SWB, FB130, QC, BSP | – | – | – | – |
| Rotary valves | Coperion ZRD / ZXD / ZVB / ZVD / ZKD / ZVH / ZXQ / ZFD | – | ZVH up to 3.5 bar | – | – |
| Mixers (MIX-A-LOT, silo blender CFB/FCB, cone mixers) | Coperion MIX-A-LOT | – | Silo blender >1000 m³ | – | – |
| Elutriators/separators | Coperion UGS / SRS / HFS / TSM | – | UGS up to 120 t/h; SRS up to 100 t/h; HFS up to 40 t/h | – | – |
| Bulk solids heat exchanger | Coperion Bulk-X-Change (BXC) | – | – | – | – |
| Silo degassing system | Coperion EcoFresh (twin/single silo) | – | up to 6.8 t/h; degassing silo up to 132 m³ | – | – |
| Ancillary equipment (side feeder ZS-B, ZS-EG side degassing, FET, SWZ screen changer, MP | Coperion ZS-B / ZS-B MEGAfeed / ZS-EG / SWZ / MP / MEGAtex | – | FET: up to 3x infeed capacity; ZS-EG: up to 30% more throughput | – | – |
| Blower packages (PD vacuum pressure blowers, vortex pump, rotary lobe) | Coperion K-Tron | – | for 2-10 inch conveying systems | – | – |
| Vacuum receivers | Coperion K-Tron 2400 Series / P-Series | – | – | – | – |
| Dense phase conveying system | Coperion K-Tron omniveyor / pressure vessels / ZVH high-pressure rotary valves | – | – | – | – |
Additional services
Reference customers
Quality
Key quality inspections take place close to production: every CTE PLUS system undergoes a Factory Acceptance Test (FAT) in Nanjing before delivery; gearbox housings are machined on Heller CNC machines and inspected on Carl Zeiss coordinate measuring machines.
| Evidence | Nanjing |
|---|---|
| FAT (Factory Acceptance Test) |
History
More than 140 years of experience in mixing technology; more than 15,000 compounding machines and extruders, more than 10,000 bulk solids handling systems and more than 20,000 feeders and pneumatic conveying systems installed