Jinquan's top hammer rock drilling tools and DTH drilling tools are the best in the drilling industry. Always solid advice, reliable service.
—— Dudu Myeni (South Africa)
Jinquan' service is unparalleled, they treat you like you are their only customer...I own my success to Jinquan, and Jinquan's drill bits, drill rods.
—— John Carew (Norway)
This is the best factory we met in the drilling industries, high quality, rational price.
—— Benny Barron (USA)
Jinquan will be your first choice when you buy China button bits, drill rods, DTH bits. I was really impressed by their strict quality control system.
—— Kwaw Koffie (Ghana)
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DTH Drill Pipes/DTH Drilling Rods
DTH Drill Pipes that are used in applications such as DTH/ DTHR/ DR basically comprise of a steel tube with a pin at one end and a box on the other. The job of the drill pipe is to transmit rotational torque and thrust from the drill rig rotary head to down hole drilling tools. Also used to transport the drilling fluid to the down hole tools and facilitate removal of cutting through annulus. An effective drill pipe has to be designed to support its own weight for combined lengths that could be more than 2000 feet down into the crust of the Earth. Connections must be durable to resist wear from repeated use. Each length of pipe must be sufficiently rigid enough not to break or become permanently bent. Most importantly, drill pipes must be capable of withstanding tremendous forces generated during the drilling and pullback.
DTH Drill Rods:
DTH drill rods out diameter:76mm, 89mm, 102mm, 114mm;
DTH drill rods thread sizes:2 3/8”API Reg, 2 7/8” API Reg, 3 1/2” API Reg, 4 1/2” API Reg, 2 3/8” API IF, 3 1/2” API IF;