5 ZDY4000LPS underground drilling rigs are shiping to Huainan Mining Industry from CCTEG Xi’an Research Institute workshop. Huainan Mining's current designed coal production capacity is 80 million tons/year. Most of the mines are high gas content mines. With relative compact structure, explosion-proof design and powerful drilling capacity, ZDY4000LPS will help them to improve gas drainage efficiency and guarantee underground coal mining safety.