Sand room is the main characteristics of sand blasting process operator in the interior. Protective clothing and helmets can prevent the operator by abrasive impact, ventilation device through the helmet provide the operator with fresh air. Sand room is mainly used for large parts or adopt the automatic sand device processing very expensive parts. Installed in the sand in the nozzle manipulator of parts surface automatic sand, automatic sandblasting inaccessible areas can through the manual sand finish. This not only keep the flexibility, and reduce the sand operator quantity requirements.