Dust extraction for power tools

Built-in dust extraction should be a must in any new equipment programme,for it is essential that airborne dust levels in body shops are reduced to a minimum for the safety of the body shop employees. Sanding,grinding and cutting operations in the body shop usually generate quantities of air- borne dust; this is a major hazard not only to health but also for refinishers wanting a quality paint finish. Systems therefore have been specifically designed to overcome problems of dust,noise and oil pollution.

The equipment consists of a high-performance dust extractor unit and a range of plug-in air tools which includes random orbital sanders,orbital sanders,saws and grinders (Figures 3.66,3.67).

Dust created during the sanding or sawing process is immediately extracted into a handy, easily emptied vacuum pump. In the case of the sanders,a series of holes in the pad itself is usedto remove the dust and debris which,with conventional systems,form a cloud and obscure the surface to be worked on as well as necessitating breathing apparatus for safety’s sake. A single quick-fix hoseconnects the hand tool to the power source. The hose has three separate com- partments for compressed air supply,exhaust and dust extraction(Figures 3.68,3.69,3.70). Most sanding and flatting tools have adjustable speed control. They have housings made of high-impact GRP,which makes them light in weight and suit- able for prolonged usage without operator fatigue.