Filter

Filter

Depending on the application, a variety of filter systems is used. The melt is cleaned efficiently with low melt loss. Basically, the appropriate filter is selected in consultation with the customer. Depending on the degree of contamination, the following variants are available as standard.

Manual screen changer

Manual screen changer

For clean, in-house production waste.  Using the manual lever, two screens can be swung out alternately to allow for cleaning of the melt stream. The process is discontinuous, because the machine has to be switched off to change the screen.

Double piston screen changer

Double-piston screen changer

For light impurities. The hydraulically operated double-piston screen changer allows continuous filtration of the melt. This allows a screen change without process shutdown.

Backflush screen changer

Back-flush screen changer

For heavily contaminated materials. The hydraulically operated double-piston screen changer filters the melt in a process-controlled and continuous manner. The integrated backwash device automatically cleans the screens. The number of back-flushes and the related service life of the screens depend on the degree of contamination of the material.

4K Backflush screen changer

4K back-flush filtration

For heavily contaminated materials. In contrast to the standard backflush screen changer with 2 screen cavities, this system is equipped with 4 screen cavities. The double filtration surface with the same frame size results in a longer filter life.

Automatic band melt filter

Band melt filter

For high contamination at high throughput rates. With the lowest melt losses and low filter costs, fully automatic operation ensures excellent filtration results. It is used particularly for post-consumer plastics.

High performance melt filter

High-performance melt filter

For heavily contaminated materials with low viscosity. The extraneous material is trapped by a rotating filter drum and removed by the rotation of the drum to a wiper. This separates the extraneous material from the filter and leads it directly to a discharge screw.

Put us to the test!

Your plastic waste is tomorrow’s raw material.

In our test centers, we will demonstrate to you the performance of NGR recycling machines using your raw materials. We’ll be pleased to show you the benefits in person.

Contact us
PET recycling system P:REACT PET improvement LSP liquid stae polycondensation