Disc sander dust disc sanders windmill known as sanding, sanding wheel, the advantage can usually be profiled sanding; drawback is poor thermal performance and easy bonding, low sanding efficiency. In the course of the work of sanding machine, grinding tools and polished contact with the object, it will generate dust, the dust a serious threat to the health of plant workers. To create a good working environment workshop, according to the nature of the characteristics of the source startups working characteristics of sanders and dust produced, designed to produce a dedicated sander working process efficient dust removal equipment - Disc Sander disc sander dust by vacuuming dust cover, inlet pipe, cartridge, outlet, compressed air, pulse controller, injection valves, injection tubes, motors and other components. It works after dusty gas from the inlet into the dust, slow air speed, coarse particles from the air stream into the dust settling chamber, fine dust with the air passes through the filter cartridge in the outer surface of the cartridge is blocked, clean gas from the discharge outlet; when cartridge surface layer of thick ash, the pulse controller issued a directive to open the injection valve, blow compressed air through the air duct high velocity within the package, but several times in the ambient air induction into the gas jet cartridge, inside out by the rapid injection, the outer surface of the cartridge dust blowing dust falling into the room, and finally discharged from the discharge hopper. Features disc sander dust precipitator small size, large filter area, long life, automatic cleaning, dust, high efficiency, stable operation, simple operation, easy maintenance, appearance, etc.