Hollow air drill is our company only designed equipment which is a new high efficient rock drill, widely using medium and small mine, road construction, national defense, water conservancy big diameter cannon hole operation in cubic meter project, also previously explore open cut mine have to equipped rock drill's equipment, especially using rugged topography where other loaded-drill can't normally operate; The mechanism having simple composition, convenient operation, safe character, especially all equipment easy to dismantle, transportation is very convenient.
The company respectively equipped with CIR80 and IR 90' s Hollow air hammer clutches and shank bit which were produced by Ingersoll-