contracor bsh blast suction headThe Contracor BSH blasting and suction head is designed for closed blasting systems where blasting and extraction take place in a single operation. During blasting, the used abrasive, together with dust and dirt particles, is removed directly through the suction hose. The head is fitted with a nylon brush that is pressed against the surface to be treated. This brush helps keep the abrasive within the blasting zone, while the vacuum flow extracts dust