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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: 478mm MRS410 N125 Shank Concentric Casing Drilling System Bit For
Coal Mining Equipment
OD of casing pipe: 410mm
Operating this advanced equipment is a breeze, thanks to its user-friendly design. With just a few simple steps, you can effectively use this drill bit to accomplish various drilling tasks with ease and precision.
In addition to its exceptional drilling speed, the MRS Concentric Casing Drilling Bit also offers stable and reliable performance. You can trust this tool to consistently deliver precise and accurate results, ensuring a smooth drilling experience every time.
Invest in the MRS Drill Bit and witness the transformation in your drilling projects. With its structural optimization, high strength, easy operation, superior performance, high drilling speed, and stable reliability, this drill bit sets new standards in the industry.
Product components:
1. Pilot bit+3PCS wiggle wings+casing shoe
2. Pilot bit+4PCS wiggle wings+casing shoe
Production details:
| Model | Hole dia.(mm) | Weight (KG) | Closed dia(mm) | Pilot dia (mm) | Total length (mm) | Case Dia (OD*ID) | Spline |
| MK-MRS190 | 238 | 80 | 190 | 203 | 550 | 219*206 | DHD360,QL6,SD6 |
| MK-MRS215 | 276 | 100 | 215 | 236 | 590 | 254*240 | DHD380,QL8,SD8 |
| MK-MRS235 | 293 | 110 | 236 | 251 | 590 | 273*254 | DHD380,QL8,SD8 |
| MK-MRS240 | 293 | 115 | 241 | 256 | 590 | 273*260 | DHD380,QL8,SD8 |
| MK-MRS280 | 345 | 180 | 280 | 300 | 740 | 323*302 | SD10 |
| MK-MRS315 | 373 | 240 | 315 | 336 | 1050 | 356*337 | N120 |
| MK-MRS365 | 432 | 350 | 365 | 381 | 1100 | 406*387 | N120,N125 |
| MK-MRS410 | 478 | 460 | 412 | 430 | 1100 | 457*435 | N125 |
| MK-MRS460 | 530 | 585 | 460 | 475 | 1100 | 508*483 | N125,SD18 |
| MK-MRS510 | 580 | 860 | 509 | 527 | 1180 | 559*533 | N180,SD18 |
| MK-MRS560 | 635 | 910 | 560 | 581 | 1180 | 610*584 | N180,SD18 |
| MK-MRS610 | 695 | 1100 | 600 | 630 | 1200 | 660*632 | N240 |
| MK-MRS660 | 735 | 1200 | 656 | 681 | 1207 | 711*685 | N240 |
| MK-MRS710 | 785 | 1480 | 710 | 730 | 1207 | 762*736 | N240 |
| MK-MRS745 | 838 | 1650 | 745 | 776 | 1207 | 813*780 | N240 |
How to order:
Casing Tube OD & ID + Reamer Bit Diameter + Minimal Casing Shoe
ID + Hammer Shank Style
Other size of MRS system is available upon customer's request
Product Application:
It is suitable for drilling water wells , geothermal wells , short
micro piles ,medium mini-type grouting hole of building , dam and
harbour project.
RFQ:
1. What does odex drilling entail?
ODEX is an adaptation of the air-operated down-the-hole hammer.
Using an eccentric bit that swings out, it reams the bottom of the
casing. Cuttings exit through a swivel and onto the ground or a
sample collector after emerging through the drive sub and casing
annulus. Remove the cuttings as soon as possible.
2. What PSI is required for air tools?
Ranging from 70 to 90 PSI
Most air tools require between 70 and 90 PSI. Any light-to-medium
duty air compressor can easily reach 90 PSI, but it's always a good
idea to have the compressor producing more flow than is necessary.
Expert Opinion: Never discount a PSI score. The instrument will not
operate correctly if there is not enough air volume.
3. How Functioning Are Casing Advancers?
The Casing Advancer's design allows for the simultaneous,
integrated completion of drilling and casing. By taking out the
drill rod string and rock bit from the large diameter hole and then
reaming the casing back into the hole, this function saves time and
work.
Products Manufacturing:
