
Machinery and engineering services for the food industry: sorting, filling, closing and packaging technology
THELEN-machines GmbH & Co. KG
Nettetal (headquarters)New on Amplifa
About THELEN-machines
THELEN-machines was founded in 1993 in Nettetal as a design office for machinery and special constructions and is today the representative of international machinery manufacturers for the food industry. The company advises on the selection of new machines and industrial systems, designs and engineers complete lines and delivers turn-key solutions from raw product preparation through optical sorting and X-ray foreign object inspection to filling, closing and packaging. The product range includes belt and free-fall sorting machines (laser, NIR, camera, multispectral), X-ray sorting machines, telescope and vacuum filling machines, can seaming machines, steam peeling systems, washing and cutting machines as well as packaging machines such as tray packers and palletizers. Machines are built from chrome-nickel steel and food-approved plastics. Customers come from vegetable, potato, salad and delicatessen processing as well as the pet food industry; the company offers local after-sales service and spare parts ordering handling. In addition, there is an in-house expert office for machinery and systems. Regions of operation are the Benelux countries and Germany as well as North America, Scandinavia, the United Kingdom and Southern Europe.
- Site
- Nettetal
- Processes
- Raw product preparation (receiving, pre-sorting, cleaning, washing, peeling, cutting, blanching), Optical sorting (belt sorting machine), Optical sorting (free-fall sorting machine), X-ray sorting/detection (X-ray foreign object inspection), Filling (telescope filling machines, piston fillers, inline fillers), Vacuum filling (volumetric, liquid to pasty), Pet food filling (telescope/vacuum fillers), Closing (twist-off, can seaming machines) and pasteurization/sterilization
- Materials
- Chrome-nickel steel, Food-approved plastics, Chrome-nickel steel (stainless steel), Sensor technology (laser, NIR, camera, multispectral BSI+), X-ray technology
- Founded
- 1993
- Industries
- Food industry, Pet food, Potato processing, Vegetable processing, Salad/leaf lettuce, Delicatessen
- 01
Consulting on machine selection
- 02
Design and engineering
- 03
Production by market-leading machinery suppliers
- 04
Planning of transport, installation, assembly and commissioning
- 05
After-sales service and spare parts ordering handling
Materials & Processes
Chrome-nickel steel (stainless steel)
Material for systems with food contact such as infeed hoppers, washing and conveyor technology.
Food-approved plastics
Plastics in approved food quality for product-contacting components and belt covering.
Sensor technology (laser, NIR, camera, multispectral BSI+)
Sensor technology of the optical sorting machines for detecting foreign objects and defects.
X-ray technology
Non-destructive foreign object and structure inspection in ongoing production.
Locations

Nettetal
DEHeadquarters, consulting, design, engineering and service
- Materials
- Chrome-nickel steel, food-approved plastics
- Belt sorting machines
- Free-fall sorting machines
- X-ray sorting/detection machines
- Telescope and vacuum filling machines (ZACMI)
- Can seaming and twist-off machines
- Steam peeling systems
- Washing machines (rod drum, brush drum, vertical brushes)
- Cutting machines
- Tray packers / wrap-around machines
- Palletizers, pallet wrappers, film shrink tunnels
- Pasteurizers and coolers
Systems & Machines



Inside the production


Industries
Processes & technical limits
| Processes | Tolerance | Max. part | Weight | Lot size | Materials |
|---|---|---|---|---|---|
| Raw product preparation (receiving, pre-sorting, cleaning, washing, peeling, cutting, blanching)Engineering | – | – | – | – | Chrome-nickel steel, Food-approved plastics |
| Optical sorting (belt sorting machine)Testing | – | – | – | – | – |
| Optical sorting (free-fall sorting machine)Testing | – | – | – | – | – |
| X-ray sorting/detection (X-ray foreign object inspection)Testing | – | – | – | – | – |
| Filling (telescope filling machines, piston fillers, inline fillers)Assembly | – | – | – | – | – |
| Vacuum filling (volumetric, liquid to pasty)Assembly | – | – | – | – | – |
| Pet food filling (telescope/vacuum fillers)Assembly | – | – | – | – | – |
| Closing (twist-off, can seaming machines) and pasteurization/sterilizationAssembly | – | – | – | – | – |
| Washing/peeling (rod drum, brush drum, steam peeling systems)Engineering | – | – | – | – | – |
| Cutting (cubes, strips, slices, julienne, leaf lettuce)Engineering | – | – | – | – | – |
| Assembly | – | – | – | – | – |
| Assembly | – | – | – | – | – |
15 Anlagen & Maschinen
| Machine | Manufacturer / model | Quantity | Working area | Year built | Site |
|---|---|---|---|---|---|
| Belt sorting machine (optical, laser/NIR/camera/multispectral BSI+) | – | – | – | – | Nettetal |
| Free-fall sorting machine | – | – | – | – | Nettetal |
| X-ray sorting/detection machine | – | – | – | – | Nettetal |
| Telescope filling machine (volumetric filler) | ZACMI | – | – | – | Nettetal |
| Vacuum filling machine | ZACMI | – | – | – | Nettetal |
| Telescope/vacuum filling machine for pet food | ZACMI | – | – | – | Nettetal |
| Can seaming machine / twist-off closing machine | – | – | – | – | Nettetal |
| Steam peeling system | – | – | – | – | Nettetal |
| Rod drum washing machine | – | – | Drum Ø 800 or Ø 1000 mm, length 2000 or 3000 mm | – | Nettetal |
| Brush drum washing machine | – | – | Drum Ø 800 or Ø 1000 mm, length 2000 or 3000 mm | – | Nettetal |
| Brush washing machine (vertical brushes) | – | – | Trough interior width approx. 900 mm, 3 to max. 6 brush pairs | – | Nettetal |
| Dicing, strip and slicing machine | – | – | – | – | Nettetal |
| Tray packer / wrap-around machine | – | – | 5 to 65 packages or trays/min | – | Nettetal |
| Palletizer / pallet wrapper / film shrink tunnel | – | – | – | – | Nettetal |
| Pasteurizers and coolers | ZACMI | – | – | – | Nettetal |
Additional services
Quality & Expertise
The systems are designed in easy-to-clean hygienic design; the optical sorting and X-ray technology performs quality sorting and foreign object inspection in ongoing production. In addition, with Wilfried Thelen (Eur Ing) there is a publicly appointed and sworn expert for mechanical engineering according to ISO/IEC 17024.
| Evidence | Nettetal |
|---|---|
History
- 1993
Founded as a design office for machinery and special constructions
- 2008
Start of the collaboration with Carl Kühne KG (Straelen branch)
Development into a representative of international machinery manufacturers with local after-sales service