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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. Four different sizes enable throughputs from 150 to 10,000 kg/h depending on the application

Technical Specifications

ERF 200 ERF 350 ERF 500 ERF 1000
Total filtration surface [cm2] 1,250 1,570 3,140 6,280
Throughput max. [kg/h] 1,100 3,800 6,000 10,000
Heating zones 5 + 1 5 + 1 13 + 2 16 + 3
Operating pressure max. [bar] 300 300 300 300
Length x width x height [cm] 58 x 132 x 179 64 x 135 x 169 89 x 148 x 172 145 x 165 x 200
Weight [kg] 800 1,000 3,300 5,500
Total installed capacity [kW] 24 27 67 105

Key Features

  • 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

Ettlinger ERF1000

MaagMAAG Pump Systems, Automatik Plastics Machinery, Gala Industries, Reduction Engineering Scheer and Ettlinger – five successful and well experienced companies have joined forces to become the global partner for the polymer industry. As manufacturer of gear pumps, pelletizing and filtration systems and also pulverizers we offer top-grade equipment for your demanding requirements – not only for polymer applications, but also for the chemical, petrochemical, pharmaceutical and food industry.
[Chemical Industrial Pumps, Pump]