Ettlinger systems

High performance Melt Filters - The ERF Series

High performance Melt Filters - The ERF Series

The continuous melt filters in the ERF series are suitable for materials with up to 16% by weight contamination and are guaranteed to remain in use for long periods without changing the filter. Our ERF melt filters are capable of processing a wide range of polymers (e.g. LDPE, LLDPE, HDPE, PP, PS, ABS, PC / ABS, TPE, TPU, POM). All solid or elastomer foreign particles such as paper,wood, aluminum, copper, rubber, silicone, or high-melting polymer composites are efficiently removed.
The classic application for ERF melt filters is repelletizing lines, but they are also successfully employed for sheet and profile extrusion. ERF melt filters can in principle be used in any extrusion line – either single or twin-screw and irrespective of the type of pelletizing system or other downstream unit. Three different sizes enable throughputs from 150 to 10,000 kg/h depending on the application.

Suitable for Compounding, Recycling, Extrusion

Inquiry system 

Configure your own product according to your requirements and needs. If you are unsure of the configuration, provide us in the notes the necessary information about the existing sensor or product, even a competitor. We will be happy to help you find an alternative MAAG products. If your request is urgent, let us know. We will do our best to help you resolve this situation to your satisfaction as quickly as possible. If we have all the information, we are able to offer a model with minor differences.

If you need more information do not hesitate to contact us.

MAAG Configuration code

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Applications

ERF continuous melt filters are suitable for processing all standard polyolefins and polystyrenes with the exception of PVC; they are designed to remove foreign particles such as paper, aluminum, wood, elastomers (rubber, silicone) or high‐melting polymer composites from heavily contaminated materials.

Packaging film

Material: LDPE
Contaminant: Paper, 1-3%
Melt loss: 1-2%

Packaging film

Yogurt cup punchings

Material: PS
Contaminant: Aluminum, PET, 3-5%
Melt loss: 2-4%

Yogurt cup punchings

Household garbage

Material: PE/PP
Contaminant: Paper, wood, aluminum, other polymers, rubber, 3-5%
Melt loss: 2-4%

Household garbage

Pipes

Material: PP/PE
Contaminant: Aluminum, 8-10%
Melt loss: 5-6%

Pipes

Refrigerator waste

Material: PS/PS
Contaminant: Aluminum, wood, other polymers, rubber, 2-3%
Melt loss: 1.5-2%

Refrigerator waste

Bottle caps

Material: HDPE
Contaminant: PET, paper, 2-5%
Melt loss: 1.5-4%

Bottle caps

Recycled bumpers

Material: PP/EPDM
Contaminant: Paint, rubber, 1-2%
Melt loss: 1-1.5%

Recycled bumpers

Electronic waste

Material: ABS
Contaminant: Paper, aluminium, 1-2%
Melt loss: 0.5-1%

Electronic waste

Detergent and cosmetics bottles

Material: HDPE blow film
Contaminant: Paper, aluminum, 1-2%
Melt loss: 1-1.5%

Detergent and cosmetics bottles

Polystyrene sheets

Material: PS
Contaminant: EPS, Wood, 2-3%
Melt loss: 1-1.5%

Polystyrene sheets

Diapers

Material: PP
Contaminant: Silicones, rubber, 2-3%
Melt loss: 1.5-2%

Diapers

Advantages

  • Fully automatic, continuous operation
  • Up to 18% contaminants removed
  • Extremely low melt losses
  • More reliable processing due to constant pressure at the filter outlet
  • No need to replace the screen for several weeks, or possibly months, depending on the material and the application
  • Completely closed system with no entrapped air
  • Short contaminant residence times in the filter
  • Very simple replacement of the scraper from outside using a hydraulic cylinder
  • Elastomers (rubber, silicone) are efficiently filtered and discharged before they have a chance to be forced through the filter screen

Technical Data

Throughput (kg/h)

ERF 350: 3800
ERF 500: 6000
ERF 1000: 10000

Weight in kg

ERF 350: 1000
ERF 500: 3300
ERF 1000: 5500

Operational pressure in bar

300

High performance Melt Filters – The ECO Series

The continuous melt filters in the ERF series are suitable for materials with up to 16% by weight contamination and are guaranteed to remain in use for long periods without changing the filter. Our ERF melt filters are capable of processing a wide range of polymers (e.g. LDPE, LLDPE, HDPE, PP, PS, ABS, PC / ABS, TPE, TPU, POM). All solid or elastomer foreign particles such as paper,wood, aluminum, copper, rubber, silicone, or high-melting polymer composites are efficiently removed.
The classic application for ERF melt filters is repelletizing lines, but they are also successfully employed for sheet and profile extrusion. ERF melt filters can in principle be used in any extrusion line – either single or twin-screw and irrespective of the type of pelletizing system or other downstream unit. Three different sizes enable throughputs from 150 to 10,000 kg/h depending on the application.

Suitable for Compounding, Recycling, Extrusion

BRF - Basic model for continuous melt filtration in modern plastics recycling

Basic model for continuous melt filtration in modern plastics recycling

The BRF is the entry-level model for continuous filtration technology. Its effective melt flow combined with an optimized discharge system ensures high quality in processing all common polymers including LDPE, LLDPE, HDPE, PP, PS, ABS, etc. with low to high contamination levels. Thanks to their robust screens, the new continuous melt filters of the BRF series also make a major contribution to cutting operating costs in day-to-day production – especially when processing melts with mineral components.

Suitable for Compounding, Recycling,Extrusion 

CSC-R - Screen changer with curved filter screens

MAAG’s CSC-R large scale screen changer with curved screens is designed for the use of one-way filter screens which do not require cleaning after the simple and safe screen change. The screen bearing pistons belong to MAAG’s modular filter system and its patented design use 75% of the piston surface as active filtration area. Also this filter execution can be installed for vertical or horizontal melt flow directly at the reactor discharge melt pump or pelletizer booster melt pump to avoid additional piping for reduction of melt residence time.

Suitable for Resin & Virgin Polymer Production

CSC-C - Polymer filtration for polymer production, polymer processing and extrusion

MAAG’s CSC-C large scale screen changer with candle filter elements is the right choice if short melt residence time, small footprint and a simplified candle change are required. Depending on the polymer type, melt viscosity, reactor throughput, and filter fineness, the screen changer size and number of pistons are customized to the application. The patented design allows the use of pleated micronex® candle filter elements with fiber metal felt (FMF) media, or cylindrical Multinex candles filter elements with interchangeable filter sleeves.

Suitable for Resin & Virgin Polymer Production