China Wholesale Merchandise Casing Dia. 146mm System With Ring Bit
General Introduction |
Make the casing follow easy and the equipment and operation simple.
Application Range
It is suitable for drilling in where rock formation is overburden and need casing tube to support
Outstanding Advantages
Simple structure,simple operation,reliable quality,retrievable drilling tools, and long service life.
Different structures
Concentric system with ring bits, with wings and with blocks.
Raw Material |
Steel:
first class special alloy steel with high strength, heat resistance and wearable
Carbide
The best tungsten carbides from China are commonly applied.
Tungsten carbide from European is also available.
Specification |
Simple structure,simple operation,reliable quality,retrievable drilling tools,long service life.
Model | Outer Dia. of Casing Tube(mm) | Inner Dia. of Casing Tube(mm) | Wall thickness of casing(mm) | Ring Bit Outer Dia(mm) | Ring Bit Inner Dia(mm) | Max Outer Dia of Normal Bits(mm) | Hammer Type | Weight (kg) |
For DTH Drilling | ||||||||
P114/8-73 | 114 | 98 | 8 | 129 | 73 | 71 | COP32/COP34/ DHD3.5/BR3/ MACH303 | 12 |
P139/10-98 | 139 | 119 | 10 | 159 | 98 | 96 | COP44/DHD340/ MACH44/MISSION40/ SD4/XL4/QL40 | 17 |
P152/10-92 | 152 | 132 | 10 | 162 | 92 | 90 | 20.5 | |
P168/12.7-123 | 168 | 142.6 | 12.7 | 188 | 123 | 121 | COP54/DHD350/ MACH50/MISSION50/ SD5/QL50 | 29 |
P177/12.7-129 | 177 | 151.6 | 12.7 | 196 | 129 | 127 | 40.5 | |
P193/12.7-145 | 193 | 167.6 | 12.7 | 214 | 145 | 143 | COP62/COP64/ DHD360/MISSION60 /SD6/XL6/QL60/TD150 | 43.5 |
P219/12.7-144 | 219 | 193.6 | 12.7 | 231 | 144 | 142 | 51 | |
P244/12.7-160 | 244 | 218.6 | 12.7 | 258 | 160 | 158 | COP84/DHD380/ SD8/QL80/TS180 | 73 |
P273/12.7-191 | 273 | 247.6 | 12.7 | 291 | 191 | 189 | 101.5 | |
P323/12.7-238 | 323 | 297.6 | 12.7 | 339 | 238 | 236 | 151 | |
P406/12.7-362 | 406 | 380.6 | 12.7 | 428 | 362 | 360 | DHD112/QL120/ SD12/NUMA120 | 266 |
P457/14.2-406 | 457 | 428.6 | 14.2 | 475 | 406 | 404 | 386 | |
P508/16-445 | 508 | 476 | 16 | 518 | 445 | 443 | 452 | |
P558/12.7-475 | 558 | 532.6 | 12.7 | 570 | 475 | 473 | QL200/SD18/NUMA180/ TH18/TS18/TK18 | 494 |
P609/16-551 | 609 | 577 | 16 | 628 | 551 | 549 | 610 | |
P660/16-565 | 660 | 628 | 16 | 680 | 565 | 563 | 691 | |
P711/16-642 | 711 | 679 | 16 | 732 | 642 | 640 | QL200S/TH32/TK24 | 930 |
P762/16-667 | 762 | 730 | 16 | 781 | 667 | 635 | 1003 | |
P812/16-736 | 812 | 780 | 16 | 838 | 736 | 714 | 1150 | |
P914/16-836 | 914 | 882 | 16 | 932 | 836 | 834 | 1580 | |
P1016/16-911 | 1016 | 984 | 16 | 1033 | 911 | 909 | QL300 | 2175 |