The Reverse Circulation Drill Rigs incorporate the modern foreign Gas Lift Reverse Circulation Drilling technology, which ensures that the dust can be effectively accumulated by the collector to avoid environmental pollution. The Reverse Circulation Drill Rigs are used for ground source heat pump air-conditioning, monitoring & drilling wells, and other deep hole of choice for equipment. These can be applicable in different formation on the compressed air reverse circulation drilling DTH. Highlights Highly durable Less labor intensive Well constructed Environmental friendly