Development and manufacture of high-precision extrusion melt pumps for recycling, compounding, films and sheets
eprotec extrusion technology ag
Regensdorf (CH)New on Amplifa
About eprotec
eprotec extrusion technology ag, based in Regensdorf (Switzerland), specialises in the development and manufacture of high-precision extrusion melt pumps (gear pumps). The modularly designed melt-X pumps relieve the pressure build-up at the extruder screw, reduce shear and pulsation and enable throughputs of up to 12.000 kg/h. Fields of application include plastics recycling, compounding, film, sheet/board and profile extrusion as well as rubber extrusion. In addition to manufacturing new pumps, eprotec offers conversion, inspection and overhaul of gear pumps – including competitors' products – including cleaning by vacuum pyrolysis, condition assessment and assembly, plus service, spare parts and special coatings against abrasion and corrosion. Pump components such as shafts and plain bearings are manufactured in the company's own plant using modern 5-axis CNC production methods from high-tech materials. The company supports projects from planning to commissioning from a single source and is a worldwide partner for consulting, support and commissioning.
- Site
- Regensdorf
- Processes
- Extrusion with melt pumps (gear pumps) for recycling, compounding, films, sheets, Development and manufacture of extrusion melt pumps (gear pumps), Conversion, inspection, overhaul of gear pumps incl. cleaning (vacuum pyrolysis), CNC manufacturing of pump components (shafts, plain bearings), Coating of pump components against abrasion and corrosion, Vacuum pyrolysis cleaning, Post-consumer plastics recycling (blendymer©) – premixing, pre-melting, agglomerate, Engineering/customised solutions incl. CNC manufacturing
- Materials
- Polyolefins, Rubber, High-tech materials for pump components, Plain bearing materials with emergency running properties, Coatings against abrasion and corrosion
- Certificates
- Condition assessment / inspection (visual & dimensional)
- Founded
- 1999
- Industries
- Plastics recycling, Compounding, Film extrusion, Sheet/board extrusion, Profile extrusion, Rubber extrusion
- 01
Engineering & design
- 02
5-axis CNC manufacturing of pump components
- 03
Special coatings against abrasion/corrosion
- 04
Assembly of the melt pumps
- 05
Plant planning through commissioning
- 06
Service: conversion, inspection, overhaul incl. vacuum pyrolysis cleaning
- 07
Spare parts & maintenance
Materials & Processes
High-tech materials for pump components
Various combinations of high-tech materials are used for the modularly designed melt-X pumps, depending on the application.
Plain bearing materials with emergency running properties
Plain bearings with good emergency running properties and a long service life are a core feature of the pump components.
Coatings against abrasion and corrosion
Special coatings – also for the complete pump – provide protection against abrasion or corrosion.
Polyolefins
Polymers processed in the recycling environment, among other things as part of the blendymer© development.
Rubber
Used in rubber extrusion, e.g. tension rubber strips and dirt traps with gear pump.
Locations
Regensdorf
CHDevelopment, manufacturing, service and sales
- Materials
- Steel, high-tech materials
- 5-axis CNC production machine
- Vacuum pyrolysis system (cleaning)
Components & Products
Inside the production
Industries
Processes & technical limits
| Processes | Tolerance | Max. part | Weight | Lot size | Materials |
|---|---|---|---|---|---|
| Extrusion with melt pumps (gear pumps) for recycling, compounding, films, sheetsPlastics | – | – | 12.000 kg/h throughput | – | Polyolefins, Rubber, Polymers |
| Development and manufacture of extrusion melt pumps (gear pumps)Plastics | – | – | – | – | – |
| Conversion, inspection, overhaul of gear pumps incl. cleaning (vacuum pyrolysis)Plastics | – | – | – | – | – |
| CNC manufacturing of pump components (shafts, plain bearings)Machining | – | – | – | – | Steel |
| Coating of pump components against abrasion and corrosionSurface | – | – | – | – | – |
| Vacuum pyrolysis cleaningSurface | – | – | – | – | – |
| Post-consumer plastics recycling (blendymer©) – premixing, pre-melting, agglomeratePlastics | – | – | – | – | Polyolefins |
2 Anlagen & Maschinen
| Machine | Manufacturer / model | Quantity | Working area | Year built | Site |
|---|---|---|---|---|---|
| 5-axis CNC production machine | – | – | – | – | Regensdorf |
| Vacuum pyrolysis system (cleaning) | – | – | – | – | Regensdorf |
Additional services
Quality
eprotec guarantees consistently high quality; condition assessments during inspections include visual inspection and discussion of significant dimensional deviations with the customer.
| Evidence | Regensdorf |
|---|---|
| Condition assessment / inspection (visual & dimensional) |
History
- 1987
In the late 80s and 90s, the team commissioned hundreds of extruder units with gear pumps, optimised them and initiated front-end developments.
- 1999
Foundation of eprotec with the goal of a completely new melt pump development based on state-of-the-art calculation methods.
- 2000
After almost one year of testing and optimisation: first order – installation of the new pump components (shafts, plain bearings) in a gear pump 70 in a recycling application.
Development of the specialities: replacement of rubber extruders with pressure-building gear pumps as well as participation in the development and manufacture of blendymer© (post-consumer recycling of polyolefins).