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Contact SupplierProduct detail Ground Shallow Well Air Drilling Rig     DTH borehole drilling rig pneumatic rock bolt drilling rig Is used for drilling large blast hole. Drilling Rig is especially convenient to be used during the initial period of opencast working,other drill carriage unable to reach,unable to carry on the normal work.The electrical system has the function of overload and open phase protection, ensuring the drilling rig with reliable and stable operation. Advantages of Down the Hole Hammer Drill Rig  1. Powerful and reliable engine  2. Powerful feeding and rotating system  3. New drilling boom  4. High power drive motors  5. Safe and stable travelling system Photo of productÂ