+86 10 8467 3566
+86 10 8467 3566
Size Range: 3 to 40 inch
Shanks: DHD,MISSION,SD,QL,CIR
Type:With or without foot valve
>> Application
DTH (Down The Hole) drill bit, also called spline connected drill bit, is mainly used in large scale mine (open and underground), open quarry and construction. The hammer is situated down the hole in direct connected with the drill bit with splines in the bit. The hammer piston strikes the drill bit resulting in an efficient transmission of the impact energy and insignificant power losses with the hole depth.
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PRODUCT DESCRIPTION
>> Characteristics
Our hammer and bits are made of high quality alloy steel with advanced heat treatment to assure the good drilling performance and long service life. They are widely used by our customers all over the world.
All the products are manufactured as per the international standard and well compatible with the brand of Atlas Copco, Ingersoll-Rand, etc
• Underground mining
• Tunneling
• Quarry benching operations
>> Specification
| Bit Shank | Bit Diameter.(mm) | |
| CIR-Series Low Air pressure DTH Bits | CIR65,HR65 | 65,68,75mm |
| CIR80,HR80 | 83,85mm | |
| CIR90,HR90 | 85,90,110mm | |
| CIR110,HR110 | 110,115,120,135mm | |
| HR150, | 155,160,165,170,180,210,220mm | |
| 1''-2''Middle Air pressure DTH Bits | BR1,BR2,JD25 | 64,70,76,80,82,90mm |
| 3'' High Air pressure DTH Bits | COP32,BR3,JD35,IR3.5,COP34,QL30,M30 | 85,90,95,100,105mm |
| 4'' High Air pressure DTH Bits | JD45,DHD340A,COP44,SD4,QL40,M40,HM4 | 105,110,115,120,127,130,133mm |
| 5'' High Air pressure DTH Bits | JD55,DHD350,COP54,SD5,QL50,M50,HM5 | 130,135,140,146,152,165mm |
| 6'' High Air pressure DTH Bits | JD65,DHD360,COP64,SD6,QL60,M60,HM6 | 152,155,165,171,190,203mm |
| 8'' High Air pressure DTH Bits | JD85,DHD380,COP84,SD8,QL80,M80,HM8 | 200,203,216,222,226,229,,241,254,270,305mm |
| 10'' High Air pressure DTH Bits | SD10,NUMA100 | 254,305,311,318,330mm |
| 12'' High Air pressure DTH Bits | DHD1120,SD12,NUMA120,NUMA125 | 305,311,330,356,381mm |
| We can design and manufcture ccording to customer's requirement of the bit daimeter,No.of air holes,carbide button shape and the face shape. | ||
>> Project&Application
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