| Customization: | Available |
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| Certification: | ISO 9001:2000, SGS |
| Standard: | GB |
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MRE Concentric under reaming drilling system is designed for unstable ground conditions. In the process of drilling, it could carry down the casing pipe to the hole to protect wall to achieve drilling work. At clockwise condition, eccentric part expanded to bring the casing tube into hole. After finished, eccentric bit closed anticlockwise and then can be lift up by the drilling machine. This type is especially suitable for diameter 114-273mm.
Advantages of Overburden Casing Drilling:
OCD eliminates the need for separate casing and drilling operations, streamlining the drilling process and reducing overall drilling time. This efficiency leads to cost savings and faster project completion.
By stabilizing the borehole in real-time, OCD reduces the risk of hole collapse and other drilling-related accidents, ensuring a safer working environment for drilling crews.
The use of casing during drilling helps maintain borehole integrity, resulting in better-quality holes with reduced deviation and improved wellbore stability.
OCD minimizes the need for additional drilling fluid and other resources, making it a cost-effective solution for drilling in challenging overburden formations.
This drilling technique can be adapted to various geological conditions, making it suitable for a wide range of applications, including water well drilling, geotechnical investigations, environmental remediation, and mineral exploration.
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Model |
Hole dia(mm) |
Weight (KG) |
Closed dia.(mm) |
Pilot dia.(mm) |
Length(mm) |
Case dia.(OD*ID) |
Spline |
|
MK-MEC90 |
125 |
16 |
90 |
100 |
360 |
114*102 |
MACH33,DHD3.5 |
|
MK-MEC115 |
155 |
30 |
115 |
125 |
510 |
139*127 |
DHD340,SD4.QL4 |
|
MK-MEC140 |
188 |
52 |
140 |
151 |
570 |
168*153 |
DHD350,SD5,QL5 |
|
MK-MEC165 |
215 |
95 |
166 |
178 |
690 |
194*181 |
DHD360,SD6,QL6 |
|
MK-MEC190 |
238 |
108 |
190 |
203 |
690 |
219*206 |
DHD360,SD6,QL6 |
|
MK-MEC215 |
276 |
140 |
215 |
236 |
720 |
254*240 |
DHD380,SD8,QL8 |
|
MK-MEC235 |
293 |
160 |
236 |
251 |
730 |
273*254 |
DHD380,SD8,QL8 |
|
MK-MEC240 |
293 |
168 |
241 |
256 |
730 |
273*260 |
DHD380,SD8,QL8 |
Order guide:
Casing Tube OD & ID + Reamer Bit Diameter + Minimal Casing Shoe ID + Hammer Shank Style
It is suitable for drilling water wells, geothermal wells, short mircopiles,medium mini-type grouting hole of building, diamond harbour project.
Wuhan Kingdrilling Diamond CO., LTD, one of the most professional private manufacturer specialized in researching and producing Overburden casing drilling system, DTH hammer, DTH drill bits, Core bits, Thread bits, Taper bits, Shank adapter, Drilling rods, Coal mining picks and related rock drilling tools.
Relying on the university resources and talent advantages in High-tech region, combining with multiple laboratories in universities, we have more power focused on developing the newest products system.
Our DTH drilling tools are produced with advanced technology from Britain. The company is equipped with advanced production facilities including electron-hydraulic forging hammer, multipurpose furnace heat treatment production line, high performance CNC machines, from raw materials prepared, forging, heat treatment, mechanical processing, a completed manufacturing system is finished in the factory. Strict quality control standards make sure stable quality.
Whatever in construction, engineering, piling, water well drilling, tunneling, mining, quarrying or horizontal drilling industry, KINGDRILLING will do the best to satisfy your demands. "Kingdrilling, Keep On Striving", we'll always be in this line to serve our customers the most reliable products and the best support.
1. High quality steels materials.
2. Kingdrilling DTH tools are forged by advanced electron-hydraulic forging hammer.
3. Advanced heat-treatment equipment: multipurpose furnace heat treatment.
4. Completed moulding (tooling ) departments with many molds available.
5. Professional R&D team,completed quality system.
6. Strict Quality-Check Systems.
1.Pre-sale service:
Act as a good adviser and assistant of clients enable them to get rich and generous returns on their investments .
1.Select equipment model;
2.Design and manufacture products according to client's special requirement ;
3.Train technical personnel for clients .
1.Pre-check and accept products ahead of delivery .
2. Help clients to draft solving plans .
Provide considerate services to minimize clients' worries.
1.Complete After-sales service,professional engineers available to service machinery at home or oversea.
2. 24 hours technical support by e-mail.
Packed by Carton or Wooden cases.
Delivery:
Transprotation: By air, By Express or By sea / By train , according to your requests.
1. How to order the products?
A: Please send the inquiry with detail item description or with Model number.
2. Can I expect a quality products?
A: Yes. mature production technology ensuring the quality satisfy international request.
3. Fast delivery time:
A: Usually it takes 25 days for production.only 3 or 5 days if we have stock of your request size.
4. Shipping way:
A: Sample order: we suggest Courier express delivery such as DHL/UPS/TNT/FEDEX or by air
Bulk order: by air or by sea we suggest.
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