DTH drilling rig principle: is intermittent shock rock (ore), continuous rotation, submersible drilling rig impact mechanism - DTH hammer mounted on the front end of the drill pipe, submersible manhole bottom piston direct impact drill, and with extension drilling, steadily advancing. Submersible drilling rig that is hidden due to the impact of the manhole bottom named. Rig by impactor piston completed percussion drill bit of the impact action, realized by rotating the rotary operation mechanism. Used air compressor, sale of used drilling rigs, leasing, recycling business which sell mine DTH drill, drill hole submersible drilling contract a variety of engineering! Compressor Rental Co., Ltd. Shanxi Qishan submersible drilling rig is in the main a small open pit mine drilling equipment. Submersible drilling rig principle: DTH drilling is connected to a pneumatic drill mounted on the impactor front drill hole drilling mining lease price, when drilling, extension drilling impactor with deep dive into the bottom of the hole and broken rock. Scope DTH rig: 80 to 250 mm in diameter borehole mining DTH drilling recovery, depth of not more than 30m, but the most up to 150m. Sale of second-hand air compressor, used drilling rigs, leasing, recycling business, contract various DTH drilling drilling project! Kisan Compressor Rental Co., Ltd. Shanxi mine northeast DTH drilling, mining and drilling DTH offer, Qishan compressor (certified merchants) provided by Kisan Compressor Rental Co., Ltd. Shanxi. Shanxi Qishan Compressor Rental Co., Ltd. (www.qskyjzl.com) (www.qskyjzl.com) is specialized in the "second-hand air compressor, air compressor used for sale, used air compressor rental, used air compressor recovery, "business, the company of" honesty, hard service "concept, to provide you with the highest quality products and services. Welcome to inquire! Contact: Li.