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[China]
Trade Verify
Address: 1-2-905 California Sunshine, Optical Valley Street,Wuhan 430074, China
Contact name:Wendy Chen
Wuhan Kingdrilling Diamond Co.,Ltd |
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Verified Suppliers
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Product name: 219 MM MRING-XD integral multi-use symmetric caisng drilling ringbit with casing shoe
Product category: Symmetric casing drilling tools
Matched hammer: Hammer DHD360
Matched casing pipe OD: 219mm
MRING-XD integral multi-use symmetric caisng drilling ringbit is designed to case a hole simultaneously through unstable ground conditions. It is the economical pneumatic ring bit system.
MRING-XD integral multi-use symmetric caisng drilling ringbit are made up of:
1. A pilot bits with large internal flushing holes and external flushing grooves
2. Symmetrical ring bit (reamer) with internal bayonet coupling
3. Casing shoe for driving of casing.
The Pilot bits is attached to any common DTH hammer shank.
MRING-XD integral multi-use symmetric caisng drilling ringbit technical parameters.
| Model | External Dia.(mm) | Casing Dia.(OD*ID) | Spline |
| MK-MRING90 | 125 | 114*102 | MACH33, DHD3.5 |
| MK-MRING115 | 155 | 139*127 | DHD340, SD4, QL4 |
| MK-MRING140 | 188 | 168*153 | DHD350, SD5, QL5 |
| MK-MRING165 | 215 | 194*181 | DHD360, SD6, QL6 |
| MK-MRING190 | 238 | 219*206 | DHD360, SD6, QL6 |
| MK-MRING215 | 276 | 254*240 | DHD380, SD8, QL8 |
| MK-MRING235 | 293 | 273*254 | DHD380, SD8, QL8 |
| MK-MRING240 | 293 | 273*260 | DHD380, SD8, QL8 |
| MK-MRING280 | 345 | 323*303 | SD10 |
| MK-MRING315 | 375 | 355*335 | SD10 |
| MK-MRING365 | 432 | 406*387 | N120, N125, SD12 |
| MK-MRING460 | 530 | 508*483 | N125, N180 |
| MK-MRING510 | 580 | 559*533 | N180 |
| MK-MRING560 | 635 | 610*584 | N180 |
| MK-MRING610 | 695 | 660*632 | N240 |
| MK-MRING660 | 735 | 711*685 | N240 |
| MK-MRING710 | 785 | 762*736 | N240 |
| MK-MRING745 | 838 | 813*780 | N240 |
| MK-MRING810 | 886 | 864*838 | N240, N240S |
| MK-MRING860 | 935 | 914*884 | N240S |
| MK-MRING910 | 980 | 965*935 | N240S |
| MK-MRING960 | 1038 | 1016*986 | N240S, M330 |
| MK-MRING1010 | 1090 | 1067*1041 | M330 |
How to order:
Casing Tube OD & ID + Ring Bit Diameter + Hammer Shank + Maximal Normal Bit Diameter +
Casings and Casing Shoes Installation Method (if by threads, threads standard must be offered)
Other size of MRING system is available upon customer's request
FAQ:
1. What is Symmetrix drilling?
Previously known in our industry as Concentrix, the updated Symmetrix system allows for the simultaneous casing and drilling of a hole. The system consists of three main components: pilot bit, ring bit (reamer) and casing shoe
2. What is drill casing in mining?
In underground mining, steel casing or steel pipe is used to line
holes that have been bored or drilled for rising mains water,
utility lines and paste fill, protecting the contents from damage
and loss into open voids or broken ground.
3. Why is overburden important?
In a petroleum system, the overburden rock overlies the source rock and contributes to its thermal maturation because of higher temperatures at greater depths. The age and thickness of the overburden rock determines the burial rate and thereby influences the heating rat.
4. Where does overburden go during a mining operation?
Overburden is used for reprocessing, contouring land, and as a
construction aggregate for buildings and roads. Mine tailings are
reused for producing clay, tiles, glass, and concrete. Mine water
is treated and then used for dust and particulate suppression,
agricultural/industrial use, and as a coolant.
More information:
