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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Testing Data of Down The Hole Hammer DTH Drilling Tools DTH Button Bits
Down the hole DTH rock tools (drilling tools) are rock drilling equipments which take compressed air as power source to partially transfer impact power into drilling holes. An air distributing device in a top hammer controls a piston to move back and forth. An impact device arranged in the front of the top hammer transfers the impact powder to a down-the-hole bit to crush rocks.
• Our product range covers the most diverse applications in mining, natural resources exploration, water wells, quarries and civil works.
• Our products go from 3 to 25 inches drilling diameter.
• Jinquan corporation enhances its product line with a number of accessories and peripheral products, seeking to add value to the end user of Down The Hole equipments.
Working conditions: Hydropower project, very hard granite quarrying.
Rock hardness: F10-F16
Rock drill model: CM351
DTH Hammer: DHD340
DTH Button Bits: D110mm
DTH Drill Pipe: D89mm
Average lifespan of DTH Hammer is 8200m, DTH Button Bits' working life is 1600m. We own steady clients all over the worlds, with large order quantity regularly. Welcome to visit our website at: www.jinquandrill.com.