MELT FILTRATION | TECHNOLOGY
and time savings, the company says. Erema also manufactures a melt filter with
laser-drilled holes: the Laserfilter. The latest development by Powerfil, Erema’s melt filter business, concerns changing filters without stopping the line. With a shut-off slider option available initially with the Laserfilter Twin model, the machine continues in operation while one of the screens is changed. Using a gate valve, a Laserfilter unit can be taken out of the ongoing production process and, after the screen change, put back into operation again. In the meantime, production continues to run via the remaining filter units and without any interruption. Erema says this option is particularly important
for production processes with high throughputs, as well as for avoiding interruptions that would lead to a reduction in efficiency due to upstream or downstream processes (such as the washing plant beforehand, or the downstream process). BritAS says recyclers are looking to produce at
finer filtration levels in order to meet their customer requests. The company says it has the right answer for these needs with its Automatic Belt Melt Filter (ABMF) technology. Its most recent development in
the ABMF product family is the ABMF-TH (twin head) system. “This twin head technology includes all the advantages from the very well-known ABMF technology and provides a much bigger filtration area at the same time,” says Thomas Lehner, CSO of BritAS. “Without typical buffer cylinders from the ABMF series version, the twin head ensures continu- ous melt process and offers all the advantages of our ABMF idea, meaning highest filtration level even finer than 50 µm, lowest melt loss in the market and a reliable and solid technology with automatic operation.” The BritAS ABMF-TH combines two ABMF filter units with a manifold block, mounted almost vertically. The filtration area is up to 3,200 cm² (2 x 1,600 cm² filters), but the company says the ABMF- TH has a compact design and short melt channels. Lehner says: “Especially the high value of
processed plastic material does need a reasonable and effective technology which reduces the loss of plastic material to a minimum. Each lost kilogram is one too much.” The company expanded its technology offering with the launch at K2019 of piston screen changers
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