Metallising

Manufacturer Seeks Dust Collection Solution for Metallisation Booths

Metallising is the general term for the technique of coating metal onto the surface of components or objects. There are different metallisation processes including electro coating, vacuum metallisation and thermal spray. Thermal spray is the technique that requires particulate filtration. The spray gun vaporises a metal feed wire made of the metal intended to provide the coating. Overspray is unavoidable and the process occurs within a booth or enclosure. The process must be ventilated through a suitable filter. However, the challenge in ventilating this type of process is to collect and extract the dust as efficiently as possible ensuring the correct air speed and direction of air flow. Sometimes, since the dust generated in this type of application is considered to be an explosive dust, this critical characteristic needs to be addressed.

Challenge

Our client is a global manufacturer, supplier and installer of metallisation booths and thermal spraying equipment. Their aim was to improve the efficiency of the collection
of dust generated through the zinc metallisation process thus providing their end-users with dust collection equipment alongside their booths. Appropriate air inlets and duct work was also to be supplied to ensure maximum dust extraction for the safety of the workers (typically four) in the booth.

Solution

Two ATEX OptiFlo® RC units were selected. These pulsejet cartridge dust collectors are specifically designed for the handling of dust generated by zinc metallisation and providing a continuous operation. The OptiFlo® RC was supplied with REDClean® SA anti-static cartridges. AAF cartridge technology allows operators to reduce power consumption, enhance efficiency and extend the time between cartridge change-outs.

Benefits

The installation of the OptiFlo® RC dust collectors together with the metallising booths has ensured the removal of airborne particles, prevention of settling dust and provided a safer environment for the workers. Since the successful commissioning of these two dust collectors, they have performed to the high standard expected by the client, prompting them to choose the OptiFlo® RC for future booth installations.