There are COP 32 DTH hammer solutions for water well drillers, miners and quarry drillers as well as for contractors in construction, oil and gas.- Air cycling is optimized to achieve more robust internal cylinder with fewer air holes.- Piston is heat treated and reasonably structured with internal cylinder air guiding system to achieve higher efficiency and larger impacting energy transfer. The penetration speed is 10%-30% faster than competitor's products of the same specification.- Piston case is made of best alloy steel ever for all ground drilling applications after countless trials of different material, even better reliability and longer life after patented heat treatment process.- Multiple start threads are CNC machined with high accuracy to make it easier and smoother being screwed on and off the piston case.- Driver sub is heat treated to achieve better wear resistance and longer serving life.- Stop working mechanism: when stop supplying air and pulling hammer out of the hole bottom, the last strike of piston falls on the step on the inner wall of piston case, which protects the driver sub splines and retainer ring.(*Top sub with tungsten carbide available)
Jinquan's self drilling anchor bolt, including hollow steel anchor bar, steel drill bit or carbide drill bits, coupling, nut, plate and stopper etc., is a bolting solution for unstable ground cond
High quality mining rock drill bits chisel bit from china manufacturer FOB Price: US $ 8 - 30 / Piece | Get Latest PriceMin.Order Quantity: 10 Piece/PiecesSupply Ability: 10000 Piece/Pieces per Mon
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High quality tapered drill steel rod for small hole drilling worksTaper drill rod 1.Taper degree:6,7,11,12 2.Shank: Hex19*108,22*108,25*108 3.Length:400-8000mm 4.Certification:ISO9001:2008Taper drill
Our T60 benching & production drilling tools, GT60 thread button bits are designed to comply with all kinds of rock formations and drilling site conditions, with longer life, higher penetration ra
FOB Price: US $ 90 - 100 / Piece | Get Latest PriceMin.Order Quantity:1 Piece/PiecesSupply Ability:6000 Piece/Pieces per MonthPort:Qingdao portPayment Terms:T/T,Western Union,MoneyGramQuick DetailsPla
Our T60 benching & production drilling tools, GT60 thread button bits are designed to comply with all kinds of rock formations and drilling site conditions, with longer life, higher penetration ra
China manufacture 12 Degree 42CrMo Taper Cross Bits for hard rock drilling The taper cross bits can be used under any rock drilling condition because of it's comprehensive adaptability.The tapered
Taper Chisel bit Taper Chisel bit is suitable for mining of black metal mines(such as iron mine/ manganese ore), nonferrous metal mine(such as gold/silver/copper ore), marble and granite etc. It's
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