Turnkey plastic recycling plants, optical sorting technology and extrusion of PS, PE and PP films and sheets
STF Group
Aicha vorm WaldNew on Amplifa
About the STF Group
The STF Group, headquartered in Aicha vorm Wald, has been developing and manufacturing plants and machines for plastic processing and the plastics cycle since 1980. Its range of services includes modular plastic recycling plants for shredding, washing, separating, sorting and conveying, optical sorting devices for precise detection and separation in the material stream, as well as customised special machine engineering for specific process requirements. In addition, the company operates its own plastics extrusion and produces thermoforming films, films and sheets made of polystyrene (PS), polyethylene (PE) and polypropylene (PP) for packaging, moulded parts and technical applications. Turnkey plant planning covers the entire process chain from input material to output: more than 100 turnkey plants have been delivered worldwide to date. Material development, formulation and plant design are treated as an interconnected system in order to produce usable recyclates and semi-finished products with a clear technical specification.
- Site
- Aicha vorm Wald
- Processes
- Plastic recycling plants (shredding, washing, separating, sorting, conveying), Optical sorting (detection and separation in the material stream), Special machine engineering / customised machine integration, Extrusion of PS thermoforming films and sheets, Extrusion of PE films and sheets, Extrusion of PP sheets and films, Turnkey plant planning (material to output, 100+ plants delivered), Digitalisation (network technology, digital strategy, protective measures)
- Materials
- Polystyrene (PS), Polyethylene (PE), Polypropylene (PP), Plastic Recycling Plants, Optical Sorting Devices, Special Machine Engineering
- Employees
- 470
- Industries
- Plastic recycling, Plastics processing, Packaging, Mechanical engineering, Telecommunications, Technical building equipment
- 01
Material analysis (input fractions, contamination, target qualities)
- 02
Turnkey plant planning from input to output
- 03
Machine engineering and special machine engineering
- 04
Optical sorting in the material stream
- 05
Plastics extrusion (films, sheets, thermoforming material)
- 06
Material development and formulation
Materials & Processes
Polystyrene (PS)
Extrusion of PS thermoforming films and sheets for packaging, moulded parts and technical applications.
Polyethylene (PE)
Robust PE films and sheets for industrial further processing and product applications.
Polypropylene (PP)
PP sheets and films with a focus on reusability and process reliability.
Plastic Recycling Plants
Modular plant concepts for shredding, washing, separating, sorting and conveying.
Optical Sorting Devices
Precise detection and separation for stable qualities in the material stream.
Special Machine Engineering
Customised machines and integrations for specific process requirements.
Sites
Aicha vorm Wald
DEHeadquarters, development and production
- Materials
- PS, PE, PP
- Plastic recycling plants
- Optical sorting devices
- Extrusion plants
Inside the production
Industries
Processes & technical limits
| Processes | Tolerance | Max. part | Weight | Lot size | Materials |
|---|---|---|---|---|---|
| Plastic recycling plants (shredding, washing, separating, sorting, conveying)Mechanical engineering/recycling plants | – | – | – | – | PS, PE, PP |
| Optical sorting (detection and separation in the material stream)Testing/sorting technology | – | – | – | – | PS, PE, PP |
| Special machine engineering / customised machine integrationEngineering | – | – | – | – | – |
| Extrusion of PS thermoforming films and sheetsPlastics | – | – | – | – | PS |
| Extrusion of PE films and sheetsPlastics | – | – | – | – | PE |
| Extrusion of PP sheets and filmsPlastics | – | – | – | – | PP |
| Turnkey plant planning (material to output, 100+ plants delivered)Engineering | – | – | – | – | – |
| Engineering | – | – | – | – | – |
| Engineering | – | – | – | – | – |
| Digitalisation (network technology, digital strategy, protective measures)Engineering | – | – | – | – | – |
3 Anlagen & Maschinen
| Machine | Manufacturer / model | Quantity | Working area | Year built | Site |
|---|---|---|---|---|---|
| Optical sorting devices | STF | – | – | – | – |
| Plastic recycling plants (modular: shredding, washing, separating, sorting, conveying) | STF | – | – | – | Aicha vorm Wald (headquarters) |
| Plastics extrusion plants | STF | – | – | – | – |
Additional services
Reference customers
History
- 1980
Founded; over four decades of experience in extrusion – from pioneer of plastics processing to international technology partner.