BB Engineering GmbH Delivered Melt Filter for PET Recycling to Thai Manufacturer

In 2021 German-based BB Engineering GmbH delivered a melt filter for recycling PET flakes to polyester manufacturer Indorama Polyester Industries (Thailand).

The company, which is part of Thai-based Indorama Ventures, will be using the type NSF38 filter in its recently assembled recycling system to produce rPET granulate from flake PET bottle waste. As described by the German provider, the device enables continual filtering as the system switches from one filter to the other during the process, without any conversion shutdowns. It allows the processing of consumer waste, for example, in the form of shredded PET bottles into high-quality rPET granulate. Then this granulate is processed into fibers in spinning systems.

Melt filter for recycling PET flakes: NSF38 (Photo: BB Engineering)

The NSF38 is a switchable filter with a filter surface area of approximately 16 m2 on each side, with throughputs of between 1,000 and 1,900 kg/h. The filter inserts each contain 19 pleated filter candles (60 x 1,000mm Ø). The filter medium comprises a sintered metal fiber nonwoven with a filtration fineness of 25 μm. That ensures that the melt remains free of contaminants and gel particles, which, in turn, enables the production of high-quality end products.

About BB Engineering GmbH
BB Engineering GmbH is a German machine building company founded in 1997 as a joint venture between Oerlikon Barmag, a subsidiary of Oerlikon Textile GmbH & Co. KG, and Brückner Group GmbH. Today, the company employs more than 160 employees at its location in Remscheid, Germany, focusing its business on the development, engineering, design, and manufacturing of extrusion and filtration technologies as well as complete spinning lines (VarioFil) and recycling technologies (VacuFil, Visco+) for the plastics and textiles industry. The services offered range from the design and planning phases through to the implementation of projects.

(Published in GLOBAL RECYCLING Magazine 1/2022, Page 20, Photo: BB Engineering)