BOFA releases upgraded filtration system to boost metal AM productivity

September 13, 2021

BOFA’s stand-alone AM 400 system uses patented technology that enables the filters that remove potentially harmful fume, gases and particulate from metal AM machines to be exchanged on site (Courtesy BOFA International)

BOFA International, Ltd, a global fume and dust extraction solutions provider headquartered in Poole, Dorset, UK, has developed a new system intended to make the exchange of filters in metal Additive Manufacturing processes safer and faster. The new stand-alone AM 400 system uses patented technology that enables the filters that remove potentially harmful fumes, gases and particulate from metal AM machines to be exchanged on site without risking a thermal event.

The Laser Beam Powder Bed Fusion (PBF-LB) process must operate in an inert atmosphere, because the materials worked risk spontaneous ignition should they come into contact with oxygen. As a consequence, when new filters were needed for these systems, equipment had to be shut down and moved to a safe area for the saturated filters to be removed and replaced by operatives wearing full PPE. In BOFA’s AM 400, however, filters are contained within a separate housing with a robust seal, enabling filter exchange in what is said to be a quicker and safer way without the need to isolate the AM machine.

Haydn Knight, Sales & Marketing Director at BOFA, stated, “This innovation in filtration design will lead to significant productivity gains for businesses involved in metal Additive Manufacturing. This production process is used across multiple industry sectors to create high-value components and products, and, by enabling easier and safer filter exchange, end users are able to benefit from reduced downtimes, which translates into tangible productivity gains.”

BOFA’s AM 400 hosts filters in separate, sealed housing, enabling filter exchange without the need to isolate the AM machine (Courtesy BOFA International)

The AM 400 extraction system has been developed specifically for the metal AM market, offering high air flow potential up to a maximum flow of 5.4 m3/min and a maximum operating pressure of 250 mBar, with low leakage at <30 ml/min @ -10 mBar. System users may also benefit from changes that optimise filter performance, enabling operators to monitor filter status and coordinate exchanges to match maintenance schedules.

Knight concluded, “The AM 400 marks a significant advancement in extraction technology for metal Additive Manufacturing through a design that helps safeguard human health and product quality, while delivering value-adding productivity improvements.”

In the latest issue of Metal AM magazine

Download PDF

Extensive AM industry news coverage, as well as the following exclusive deep-dive articles:

  • Transforming access to medical implants with PrinterPrezz
  • Lessons from 2021’s Olympic bike crash
  • Xerox liquid metal AM
  • Additive Manufacturing for oil, gas and maritime
  • Multi-material metal parts by Powder Bed Fusion
  • Findings from Wohlers Report 2022
  • The challenge of grain size: X-ray powder diffraction analysis of parts made by metal AM

The world of metal AM to your inbox

Don't miss any new issue of Metal AM magazine, and get the latest industry news. Sign up to our twice weekly newsletter.

Sign up

News from the industry…

    News from the industry…

    Discover our magazine archive…

    The free to access Metal Additive Manufacturing magazine archive offers unparalleled insight into the world of metal Additive Manufacturing from a commercial and technological perspective through:

    • Reports on visits to leading metal AM part manufacturers and industry suppliers
    • Articles on technology and application trends
    • Information on materials developments
    • Reviews of key technical presentations from the international conference circuit
    • International industry news

    All past issues are available to download as free PDFs or view in your browser.

    Browse the archive


    Looking for AM machines, metal powders or part manufacturing services?

    Discover suppliers of these and more in our comprehensive advertisers’ index and buyer’s guide, available in the back of Metal AM magazine.

    • AM machines
    • Process monitoring & calibration
    • Heat treatment & sintering
    • HIP systems & services
    • Pre- & post-processing technology
    • Powders, powder production and analysis
    • Part manufacturers
    • Consulting, training & market data
    Download PDF
    Share via
    Copy link
    Powered by Social Snap