89mm Mring Overburden Concentric Casing Drilling System with Ring Bit - 125mm to 1090mm Diameter Range
Price:
999-99999USD/PC
MOQ:
1PC
Delivery Time:
3-5WEEKS
Brand:
MING
Product Description
89mm Mring Overburden Concentric Casing Drilling System
Advanced ring bit casing drilling system designed for efficient overburden drilling operations in engineering applications.
Working Principle
- Ring bit and casing shoe assembly welded to casing prior to drilling
- Pilot bit engages casing shoe shoulder to transfer percussive energy
- Hammer energy crushes rock while advancing casing simultaneously
- Drill string retrieval via reverse rotation to unlock bayonet coupling
- Ring bit remains in hole for casing recovery
- Conventional drilling continues in bedrock to desired depth
Performance Benefits
Accelerate drilling processes with exceptional driving speed. Advanced technology enables rapid drilling, significantly reducing overall drilling time while maintaining efficiency and productivity.
Product Specifications
| Model | External Diameter (mm) | Casing Diameter (OD×ID) | Spline Compatibility |
|---|---|---|---|
| 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 |
Ordering Information
Specify: Casing Tube OD & ID + Reamer Bit Diameter + Minimal Casing Shoe ID + Hammer Shank Style
Technical Support Services
Comprehensive pre-sale consultation, in-sale planning assistance, and responsive after-sale support including 24-hour response and quality-guaranteed replacements.
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Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.
Company
Wuhan Kingdrilling Diamond Co.,Ltd
Location
1-2-905 California Sunshine, Optical Valley Street,Wuhan 430074, China
Contact Person
Wendy Chen