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8 Inch DTH Hammer Overburden Drilling System Bits DHD350 DHD360

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8 Inch DTH Hammer Overburden Drilling System Bits DHD350 DHD360

Brand Name : MING

Model Number : MRING273-DHD380

Certification : ISO9001

Place of Origin : CHINA

MOQ : 1PC

Price : 999-99999USD/PC

Payment Terms : T/T, D/P, Western Union

Supply Ability : 2000PCS/MONTH

Delivery Time : 3-5WEEKS

Packaging Details : WOODEN CASE

Material : Carbon Steel,Carbide

Use : Mining; water well drilling

Type : Symmetrix Casing,Odex overburden system

Machine type : Drilling Tool,Drilling Equipment

Processing type : Forging,Machining process

Product name : Concentric Casing System

Color : Request,Yellow,Red

Application : construction,water well drilling

Usage : Mining&Construction&Water Well Drilling,ore

Advantage : High Performance,High-efficiency

Model type : Cop,Halco,DHD,Mission,NUMA

Name : ODEX System (eccentric Overburden System)

Item : Overburden Drilling Casing System

Hammer type : DHD3.5 DHD340 DHD350 DHD360 DHD380 DHD110 DHD112

Button shape : Spherical/Ballistic/Parabolic/Sharp/Flat

Advantages : High performance,High quality and factory prices

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Product name: 273mm MRING tunneling casing drilling ring bit for 8 inch DTH hammer

Product category: Concentric casing drilling system

Matched hammer: Hammer DHD380

Matched casing pipe OD: 273mm

MRING tunneling casing drilling ring bit are designed to use ring bit which is not connected to casing shoe.
Special profile DTH Bit passes through enough large inner diameter of ring bit.

8 Inch DTH Hammer Overburden Drilling System Bits DHD350 DHD360

MRING tunneling casing drilling ring bit 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 drill casing?

Casing is a large diameter pipe that is assembled and inserted into a recently drilled section of a borehole. Similar to the bones of a spine protecting the spinal cord, casing is set inside the drilled borehole to protect and support the wellstream.

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. How far can you directional bore?
What are the minimum and maximum lengths of crossing? Maximum lengths and hole diameters are determined by project specific geotechnical conditions however effective outside range for heavy rig horizontal directional drilling is 3,000 m

More information:

8 Inch DTH Hammer Overburden Drilling System Bits DHD350 DHD3608 Inch DTH Hammer Overburden Drilling System Bits DHD350 DHD360

8 Inch DTH Hammer Overburden Drilling System Bits DHD350 DHD360


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