zur StartseiteEREMA causes a sensation with new strapping technology: High-strength PET strapping from post consumer PET flakes
PCTVEVACUREMACOAXKAGMelt filtersPelletising SystemsLaser FilterFunctionPlant sizes/output capacitiesRequest information Material Questionnaire

Laser Filter: The Filter with the extreme separating capacity

The name ”Laser Filter“ originates from the fact that the core elements of this filtering system, the filter screens, are drilled (shot through) using laser technology, with the holes designed conically, making them self-cleaning.
(see picture below)


Used plastic waste contains a large proportion of unwanted material and contamination. Despite complex washing and separating processes, the removal of residual contamination through the melt filtration system in the subsequent extrusion process causes huge problems, particularly in terms of economic efficiency.

Conventional melt filtering technology on the market fails to meet the demands in many cases. This is all the more so if the used plastic waste is to be used to manufacture pellets (recyclate) in film quality.

In order to perform these tasks, Erema has developed a continuous high-capacity filtering system: the EREMA LASER FILTER.

A quantuum leap in filtering capacity

When traditional cartridge filters with wire mesh screens are used, heavy contamination of the screens rapidly results in excess pressure, switching off the extruder in seconds. Using the Laser filter, a continuous filtration and thus extrusion process can be maintained for days and even weeks.

Comparisons made in the Erema’s technical centre and in many customer applications confirm the impressive capacity of the new filtering system, e.g. in filtering plastic melt from washed post-consumer plastic waste.

The results:

3 –5 minutes screen change interval
using traditional cartridge screen changers

  • high personnel costs
  • high risk of injury
  • limited filtering capacity


2 hours screen change interval
with modern state-of-the-art partial area backflush
screen changers (e.g. Erema SW 8/170 RTF)

  • reduced personnel costs
  • reduced risk of injury
  • increased filtering capacity


600 –1000 hours screen change interval
with the EREMA LASER FILTER!

  • extremely high filtering capacity
  • practically no need for personnel
  • minimum melt loss
  • fully automatic constant pressure operation

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Why Erema?

  • High-tech from the world market leader
  • Top-notch state-of-the-art recycling technology
  • Superior end product quality (pellet)
  • Best customer service and care and therefore reliability for the user
  • Tailor-made, individual solutions possible through large engineering capacity with more than 30 years experience in plastic recycling
  • Superb reliability, flexibility and productivity
  • Your best partner