BOFA International are 'The World Leaders' in fume extraction & filtration and are considered to be No.1 in the industry. We manufacture fume extraction units which are reliable, high quality, with low cost of ownership and offer an unrivalled 25 years of experience and expertise in the Laser, Electronics, Mechanical Engineering, Printing, Dental, Medical, Pharmaceutical and Beauty industries.

BOFA's range of ADVANTAGE laser fume and filtration extraction systems are designed for applications that generate particulate and gaseous organic compounds within the Laser Marking, Coding and Engraving Industries.

BOFA and Radecal have worked closly together to be able to provide a suitable BOFA Filter Extraction system for each of the Pirnaha International Laser machines and also the Roland UV printers. Please contact the Radecal team to discuss which BOFA unit is suitable for your Piranha Laser Machine or Roland UV printer.

 

What is Laser Fume?

Lasers are now an essential tool in industry for cutting, marking, engraving and welding a vast range of materials. Metals are the most commonly worked substrate but organic materials (plastics, paper, wood) are catching up fast.

In virtually all the above operations some form of fume is given off as the laser thermally decomposes the substrate to a greater or lesser degree. This fume is a mixture of particulate and gaseous matter.

Fume from materials such as metals and glass is mainly particulate, the majority of which is less than 1µ (micron) in diameter. Organic materials, particularly plastics, produce much more complex fumes which are investigated below.

Most of the particles are spherical and roughly 90% by weight are less than 1µ in diameter. These particles fall within the respirable range and need to be removed from the working environment to prevent bronchal or lung damage.

The gaseous organic compounds produced are known as Volatile Organic Compounds, VOC's.

The VOC's produced are a mixture of the following:

Aliphatic hydrocarbons: alkane, alkene

Aromatic hydrocarbons: benzene, toluene, xylene

Aldehyde: formaldehyde

Polycyclic aromatic hydrocarbons: benzo(a)pyrene

Additionally some materials have other specific groups e.g. PVC polymers generate HCl, 2 component epoxy polymers yield amines and PET generates THF. A considerable number of the above have Occupational exposure limits set for them and these are detailed in the Operator health section. Obviously, as with the particulate element these gases need removing from the workplace.

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