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Permanent Ring Bit System

Permanent ring bit System casing drilling bits by DTH Hammer Product details: Kingdrilling Tools CO., LTD is one of the most professional private enterprise specialized in researching and producing casing drilling system, down the hole(DTH) hammer, down the hole bit, thread drill bits, taper...
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Permanent ring bit System casing drilling bits by DTH Hammer

Product details:

Kingdrilling Tools CO., LTD is one of the most professional private enterprise specialized in researching and producing casing drilling system, down the hole(DTH) hammer, down the hole bit, thread drill bits, taper drill bits, Anchor, coal mining tools and so on.


Product feature:

Permanent ring bit system is a concentric drilling system with retrievable pilot bits.

This system drills in any direction and in any type of ground condition.

The Symmetric components are made up of:

---A pilot bits with large internal flushing holes and external flushing grooves

---Symmetrical ring bit (reamer) with internal bayonet coupling

---Casing shoe for driving of casing.

The Pilot bits is attached to any common DTH hammer shank.

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)

 

Advantages

1. Enhance penetration and perpendicularity

2. Reduce torque requirements

3. Deal with straight, oblique hole and other angle holes

4. Lowest effect with environment

5. Material:  TIMKIN Steel. Tungsten carbide: YK05, T6 from Element Six in Germany

6. Kingdrilling DTH tools are forged by advanced electron-hydraulic forging hammer, and harness process is managed by multipurpose furnace heat treatment.

7. Quality: More than 40 Years engineer to make sure the quality, 100% inspection


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Hot Tags: permanent ring bit system, China, manufacturers, price, in mining, made in China
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