125mm MRE90 Overburden Casing Drilling System Bit for Water Wells - 90mm OD, 16KG Weight
Price:
999-99999USD/PC
MOQ:
1PC
Delivery Time:
4-5WEEKS
Brand:
MING
Product Description
125mm MRE90 Overburden Symmetric Casing Drilling System Bit
Key Specifications
Hole Diameter: 125mm | Matched Casing Pipe OD: 90mm | Weight: 16KG
Compatible Hammer: DHD3.5 | Length: 360mm
Product Overview
The MRE90 Overburden Casing Drilling System Bit is engineered for simultaneous casing advancement in water well drilling applications. This cutting-edge tool delivers exceptional performance through structural optimization, ensuring high drilling speed, stability, and operational reliability.
Technical Features
- Structural optimization for maximum drilling efficiency
- Extended operating life with excellent anti-wear properties
- Precision-crafted from top-quality materials
- High drilling speed with superior stability
- Reduced tool replacement frequency
- Consistent performance in tough drilling conditions
Product Components
Complete system includes: Pilot bit + 2PCS rotor wings + casing shoe
Technical Specifications
| Model | Hole dia (mm) | Weight (KG) | Closed dia. (mm) | Pilot dia. (mm) | Length (mm) | Case dia (OD*ID) | Spline |
|---|---|---|---|---|---|---|---|
| MK-MRE90 | 125 | 16 | 90 | 100 | 360 | 114*102 | MACH33,DHD3.5 |
| MK-MRE115 | 155 | 30 | 115 | 125 | 510 | 139*127 | DHD340,SD4.QL4 |
| MK-MRE140 | 188 | 52 | 140 | 151 | 570 | 168*153 | DHD350,SD5,QL5 |
| MK-MRE165 | 215 | 95 | 166 | 178 | 690 | 194*181 | DHD360,SD6,QL6 |
| MK-MRE190 | 238 | 108 | 190 | 203 | 690 | 219*206 | DHD360,SD6,QL6 |
| MK-MRE215 | 276 | 140 | 215 | 236 | 720 | 254*240 | DHD380,SD8,QL8 |
| MK-MRE235 | 293 | 160 | 236 | 251 | 730 | 273*254 | DHD380,SD8,QL8 |
| MK-MRE240 | 293 | 168 | 241 | 256 | 730 | 273*260 | DHD380,SD8,QL8 |
Ordering Information
Required specifications for ordering:
- Casing Tube OD & ID
- Reamer Bit Diameter
- Minimal Casing Shoe ID
- Hammer Shank Style
Working Principle
During clockwise rotation, the reamer bit expands to advance the casing tube into the hole. Upon completion, the reamer bit closes during anticlockwise rotation, allowing retrieval by drilling machines. This system is specifically designed for casing diameters ranging from 114mm to 273mm.
Application Range
Ideal for various drilling applications including:
- Water well drilling
- Geothermal well construction
- Short micro piles installation
- Medium mini-type grouting holes for building foundations
- Dam and harbor construction projects
Technical Reference
What is Overburden Fill?
Overburden soil is a general, unprocessed fill material containing various components depending on the source location. Typically composed of sand, rocks, clay, and stones, overburden soil lacks the organic material and nutrients found in topsoil.
What is ODEX Drilling?
ODEX is an adaptation of air-operated down-the-hole hammer technology. It utilizes a swing-out eccentric bit to ream the casing bottom, with cuttings blown up through the drive sub and casing annulus to a swivel for collection or ground disposal, enabling rapid removal of drilling cuttings.
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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