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| Categories | Overburden Drilling System | 
|---|---|
| Brand Name: | MING | 
| Model Number: | MRING168mm | 
| Certification: | ISO9001 | 
| Place of Origin: | CHINA | 
| MOQ: | 1PC | 
| Price: | 999-99999USD/PC | 
| Payment Terms: | T/T, D/A, D/P, Western Union | 
| Supply Ability: | 2000PCS/MONTH | 
| Delivery Time: | 4-5WEEKS | 
| Packaging Details: | WOODEN CASE | 
| Material: | High Manganese Steel,Carbide | 
| Use: | Well Drilling,Ore Mining,Quarry or mining or well drilling | 
| Type: | Drill Bit,Symmetrix Casing,odex drilling system,Odex overburden system | 
| Machine type: | Drilling Tool | 
| Processing type: | Forging,Machining process | 
| Product name: | Eccentric Drill Bits,Concentric Casing System | 
| Color: | Gold,Required,Yellow,Red | 
| Application: | Quarry,construction,mining,water well drilling,mining or welling drilling | 
| Usage: | Hole Drilling,Mining&Construction&Water Well Drilling | 
| Advantage: | High Performance,High-efficiency | 
| Diameter: | 108-273mm | 
| Model type: | Cop,Halco,DHD,Mission,NUMA | 
| Name: | ODEX System (eccentric Overburden System) | 
| Item: | Overburden Drilling Casing System | 
| Hammer type: | Overburden drilling system,DHD3.5 DHD340 DHD350 DHD360 DHD380 DHD110 DHD112 | 
| Button shape: | Spherical/Ballistic/Parabolic/Sharp/Flat,and ballistic shapes buttons | 
| Advantages: | high strength,High performance,High quality and factory prices | 
| Standard: | ISO9001 | 
| Company Info. | 
| Wuhan Kingdrilling Diamond Co.,Ltd | 
| Verified Supplier | 
| View Contact Details | 
| Product List | 
Product name: 168mm Symmetric loose ground casing drilling ringbit without casing shoe
Outer diameter casing pipe: 168mm
This overburden drilling systems are designed to use ring bit which is not connected to casing shoe.
Product components:
Pilot bit + ring bit + casing shoe
Production details:
| 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)
RFQ:
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. 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.
3. Where do they put overburden?
The most common use for the large volumes of overburden produced by a surface mine is to remediate and
reclaim the area where it was first removed. Putting the sand, rock, and clay back where it came from helps
rebuild the level of the soil so that plant life can return.
Products Manufacturing:




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