The Symmetrix overburden drilling system is a patented system comprised of an ingeniously simple concentric method of drilling through overburden with casing. Symmetrix can drill straight holes at any angle (including horizontal) and to depths beyond 100 meters.
The three main components of the system are made up of:
A pilot bit that drills away the center part of the hole and guides the drill string. The pilot bit is attached to any common DTH hammer shank or top hammer rod thread.
A casing shoe welded to the casing pipe which is pulled down by the impact of the hammer and pilot bit.
A symmetrical ring bit that is locked onto the pilot bit drills the void for the casing to advance down the hole. There are three different types of ring bit and casing shoe assemblies;
A solitary ring bit with no connection to the casing shoe.
A welding ring that holds the ring bit and casing shoe together.
A factory assembled ring bit set with integrated ring bit and casing shoe.
Symmetrix systems can be used in a multitude of applications, handling casings from 76 to 1 220 mm (3'' to 48'') to almost any depth. There are six standard models:
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We are specialized in supplying high quality DTH drilling products which is for mining, quarrying, well drilling and foundation drilling. Our products range is as follows:
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), shanks : DHD 3.5, COP 34, COP 32, Mission 30, BR 3, Mach 303,
4" DTH hammer bits (105mm- 130mm), shanks: DHD 340/COP 44, COP 42, QL 40, SD 4, Mission 40, XL 4, Mach 44,
5" DTH hammer bits (130mm- 152mm), shanks: DHD 350/COP 54, COP 52, QL 50, SD 5, Mission 50, XL 5,
6" DTH hammer bits (152mm- 171mm), shanks: DHD 360/ COP 64, COP 62, QL 60, SD 6, Mission 60, XL 6,
8" DTH hammer bits (200mm- 305mm), shanks: DHD380, QL 80, SD 8, Mission 80,
3, Drill rods diameter range: 76mm, 89mm, 102mm, 114mm, 127mm;
Length: 1000mm, 1500mm, 2000mm, 3000mm, 4500mm, 6000mm, 6400mm, 7620mm, 8100mm, 9140mm, 10670mm ;
Thread: API IF 2.3/8", API REG 2.3/8", API IF 2.7/8", API REG 2.7/8", API IF, 3.1/2", API REG 3.1/2", API IF 3.1/2".
4, ODEX overburden drilling system:
ODEX 90 for 3" DTH hammer, including the specifications of Guide device, casing shoe, reamer and pilot bits:
ODEX 115 for 4" DTH hammer, including the specifications of Guide device, casing shoe, reamer and pilot bits:
ODEX 140 for 5" DTH hammer, including the specifications of Guide device, casing shoe, reamer and pilot bits:
ODEX 144 for 5" DTH hammer, including the specifications of Guide device, casing shoe, reamer and pilot bits:
ODEX 165 for 6" DTH hammer, including the specifications of Guide device, casing shoe, reamer and pilot bits:
ODEX 190 for 6" DTH hammer, including the specifications of Guide device, casing shoe, reamer and pilot bits:
ODEX 240 for 8" DTH hammer, including the specifications of Guide device, casing shoe, reamer and pilot bits:
5, Symmetrix overburden drilling system and spare parts.
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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;
