Traversing sandblasting head for wall surfaces - has one or more cranked rotating nozzle blasting through edge sealed window and has dust extraction from housing

摘要

The head (2) has a front face (3) which is held in contact with the wall surface (11) as the head is traversed over it. Entering through the back cover of the head are one or more rotatably mounted sandblasting nozzles (1). These are cranked (12) so that the nozzle aperture (13) describes a circular path against the wall when the nozzle is rotated by the drive (8). In the front face of the head is a sandblasting window (9) opening with a peripheral seal (10) against the wall. Connected to the bottom of the head is a dust collection hose (5) which is joined to an exhaust pipe (6) and extractor fan (7). ADVANTAGE - Effective dust control, especially when sandblasting tall concrete and steel structures.