Why DTH drilling?
Quality holes. In the 110-171 mm range, DTH is
the dominant drilling method today. Superb hole
straightness (within 1% deviation without guiding
equipment); good hole cleaning; smooth, even
walls for easy charging of explosives; deep hole
drilling capacity and efficient energy transmission
are benefits that have effectively sidelined other
drilling techniques.
Greater flexibility. Employing the DTH method, it’s easy to optimize the layout of a quarry or open pit mine. That’s why this technique is rapidly replacing not only traditional rotary units in blasthole drilling, but also top-hammers in delivering perfect quality holes. After all, why change rig when all you need to do is change the size of your hammer!
In addition, DTH lends itself superbly to numerous other applications, including water well drilling, exploration, foundation, anchoring and geothermal holes.
The famous DTH hammer, DTH hammer bits:
1, DTH/ITH hammer range
3" DTH hammer: DHD 3.5, COP 34, COP 32, Mission 30, BR 3, Mach 303,
4" DTH hammer: DHD 340/COP 44, COP 42, QL 40, SD 4, Mission 40, XL 4, Mach 44,
5" DTH hammer: DHD 350/COP 54, COP 52, QL 50, SD 5, Mission 50, XL 5,
6" DTH hammer: DHD 360/ COP 64, COP 62, QL 60, SD 6, Mission 60, XL 6,
8" DTH hammer: DHD380, QL 80, SD 8, Mission 80,
2, DTH hammer bits range:
3" DTH hammer bits (90mm - 105mm): DHD 3.5, COP 34, COP 32, Mission 30, BR 3, Mach 303,
4" DTH hammer bits (105mm- 130mm): DHD 340/COP 44, COP 42, QL 40, SD 4, Mission 40, XL 4, Mach 44,
5" DTH hammer bits (130mm- 152mm): DHD 350/COP 54, COP 52, QL 50, SD 5, Mission 50, XL 5,
6" DTH hammer bits (152mm- 171mm): DHD 360/ COP 64, COP 62, QL 60, SD 6, Mission 60, XL 6,
8" DTH hammer bits (200mm- 305mm): DHD380, QL 80, SD 8, Mission 80, COP 84;
3, Drill rods diameter range: 76mm, 89mm, 102mm, 114mm, 127mm;
4, ODEX overburden drilling system:
ODEX 90, ODEX 115, ODEX 140, ODEX 144, ODEX 165 , ODEX 190, ODEX 240
5, Symmetrix overburden drilling system and spare parts.
Mr Jack Chan/ Products Manager
Mob: +86-13985434402
Guizhou Sinodrills Equipment Co., LTD.
Web: http://www.sinodrills.net
E-mail: [email protected]
MSN: [email protected]
Tel: +86-851-6821628, 6821268, 6800738, EXT: 8012;
Fax: +86-851-6830552;
