Best Sale 238mm Eccentric Drilling Casing Advance System Rock Mining Bit
Product Description
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.
Technial Date
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
FAQ:
1. How to control quality?
A: We have our own experienced QC team,there will be strict inspection and testing for each order before shipping out.
2. Fast delivery time:
A: Usually it takes 25 days for production.only 3 or 5 days if we have stock of your request size.
3. Competitive price:
A:KINGDRILLING factory can supply you the lowest price due to direct sale to customers without distributor!
4. Methods of Payment:
T/T (Telegraphic Transfer) or Western Union.
5. What is the materials?
Steel is TIMKEN, Alloy is from T6 from Element Six.
Product Application:
Transport:
Package and Delivery:
Packed by Carton or Wooden cases.
Delivery:
- Goods in stock can be delivered within 5 days.
- DTH Bits production time is about 15 days.
- DTH Hammer product time is about 30 days.
