
ENTEX manufactures planetary roller extruders and systems for custom process engineering in plastics processing.

ENTEX Rust & Mitschke GmbH
44805 Bochum (Headquarters)New on Amplifa
We are ENTEX – Experts in Custom Process Engineering
ENTEX Rust & Mitschke GmbH, based in Bochum, develops and manufactures planetary roller extruders and complementary systems for continuous production processes. Founded in 1986 by Dipl.-Ing. Harald Rust, the company is regarded as the developer of the planetary roller extruder and offers solutions for mixing, reaction, cooling and degassing processes in polymer processing. The product portfolio includes, alongside its extruder series, single-screw extruders, temperature control systems and thermal rolls, calender rolls, strainers and radial pelletizing systems. Materials processed include PVC, rubber and elastomers, silicones, hot-melt adhesives, bioplastics, recycled materials and polymer-bonded wood-based materials with up to 80% wood fibers in the polymer matrix. Applications can be found, among others, in film extrusion and calendering of PVC, reactive extrusion of adhesives, compounding with fillers, and in the processing of foods such as ice cream or chocolate masses. Customers come from industries such as chemicals, adhesives, PVC film production, recycling, rubber and elastomer processing, and food technology; in addition to its headquarters in Bochum, ENTEX operates a technical center where customers jointly develop process optimizations and product developments.
- Site
- Bochum
- Processes
- Planetary roller extrusion (planetary roller extruder), Reactive extrusion, Mixing, reaction, cooling and degassing processes (processing), Compounding with fillers, Film extrusion / calendering (PVC films, film), Wood-polymer extrusion, Single-screw extrusion, Radial pelletizing
- Materials
- PVC, Rubber / elastomers, Silicones, Adhesives (hot melts), Bio-/plastics, Recycled materials, Polymer-bonded wood material (wood-polymer, up to 80% wood fibers), Foam
- Founded
- 1986
- Industries
- Adhesives, Chemicals, Bio-/plastics, Recycling, PVC, Rubber & Elastomers
- 01
Engineering and process development
- 02
Manufacturing of extruders and system components
- 03
Assembly and commissioning
- 04
Technical center for process trials with customers
- 05
After Sales, spare parts and rental program
Process Engineering and Materials
Planetary roller extrusion
Continuous, low-shear thin-film rolling with separate control of thermal and mechanical energy for mixing, reaction, cooling and degassing processes.
PVC
Used in film extrusion and calendering as well as in the extrusion of PVC compounds.
Rubber & Elastomers
Preparation and compounding of rubber compounds, complemented by strainer filtration.
Silicones
Gentle processing of silicone masses with precise temperature control.
Hot-melt adhesives
Reactive extrusion and homogenization of adhesive masses on a short process length.
Bioplastics
Processing of renewable and sustainable polymer materials.
Recycled materials
Processing and reconditioning of plastic recyclates in a continuous process.
Wood-polymer composite (megawood)
Incorporation of up to 80% wood fibers into the polymer matrix for polymer-bonded wood-based materials.
Foodstuffs
Gentle processing of sensitive masses such as ice cream or chocolate with rapid cooling.
Cable compounds
Compounding of compounds for the cable industry.
Foam
Processing of foam materials in the planetary roller extruder.
Locations
Bochum
DEHeadquarters with technical center and R&D
- Planetary roller extruder
- Single-screw extruder
- Temperature control systems
- Calender rolls
- Strainer
- Radial pelletizing
Machines and Systems





Inside the production





Industries
Processes & technical limits
| Processes | Tolerance | Max. part | Weight | Lot size | Materials |
|---|---|---|---|---|---|
| Planetary roller extrusion (planetary roller extruder)Plastics | – | – | – | – | PVC, Rubber/elastomers, Silicones, Adhesives, Bio-/plastics, Recycled materials, Wood-polymer composite (megawood), Foodstuffs (ice cream, chocolate masses), Cable compounds, Foam |
| Reactive extrusionPlastics | – | – | – | – | Adhesives/hot melts |
| Mixing, reaction, cooling and degassing processes (processing)Plastics | – | – | – | – | – |
| Compounding with fillersPlastics | – | – | – | – | Wood fibers in polymer matrix (up to 80%), Plastics |
| Film extrusion / calendering (PVC films, film)Plastics | – | – | – | – | PVC |
| Wood-polymer extrusionPlastics | – | – | – | – | Polymer-bonded wood material, Wood fibers |
| Single-screw extrusionPlastics | – | – | – | – | – |
| Radial pelletizingPlastics | – | – | – | – | – |
| Strainer filtration (strainer)Plastics | – | – | – | – | Rubber, PVC |
| Heating/cooling technology (thermal rolls, temperature control systems)Heat treatment | – | – | – | – | – |
| Calender roll manufacturingPlastics | – | – | – | – | – |
6 Anlagen & Maschinen
| Machine | Manufacturer / model | Quantity | Working area | Year built | Site |
|---|---|---|---|---|---|
| Planetary roller extruder | ENTEX | – | – | – | Bochum / Weißbach (customer deployment) |
| Single-screw extruder | ENTEX | – | – | – | – |
| Temperature control system / thermal rolls (heating/cooling technology) | ENTEX | – | – | – | – |
| Calender rolls | ENTEX | – | – | – | – |
| Strainer | ENTEX | – | – | – | – |
| Radial pelletizing system | ENTEX | – | – | – | – |
Additional services
Reference customers
History
- 1986
The success story of the planetary roller extruder begins, driven by founder Dipl.-Ing. Harald Rust