Tunneling casing system permanent ring bit
Kingdrilling Tunneling casing system permanent ring bit is designed to case a hole simultaneously through unstable ground conditions. It is the economical pneumatic ring bit system.
Product feature:
The Symmetric components are made up of:
---A pilot bits with large internal flushing holes and external flushing grooves
---Symmetrical ring bit (reamer) with internal bayonet coupling
---Casing shoe for driving of casing.
The Pilot bits is attached to any common DTH hammer shank.
|
Model |
External Dia.(mm) |
Casing Dia.(OD*ID) |
Spline |
|
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 |
How to order:
Casing Tube OD & ID + Ring Bit Diameter + Hammer Shank + Maximal Normal Bit Diameter +
Casings and Casing Shoes Installation Method (if by threads, threads standard must be offered)
FAQ:
1. How to order the products?
A: Please send the inquiry with detail item description or with Model number.
2. How about the common packing?
A: If there is no special packing demand, we will take it as our normal packing. First in small carton, and then put in the bigger carton together to make sure goods completed.
3.Why choose us?
High-quality products, reasonable price, professional team work.
4.Do you have different type for different kind of rock formation?
Yes, according hardness of stone and stone's feature, we have different type respectively.
5.Can you make the goods according to our drawings or samples
Yes, we have the professional molding department, our technician R&D teams are have rich experience.
6.What is your minimum order requirement?
We accept the small trial order at our initial cooperation, even only 1 piece, we will treat it as a big order and try our best to meet our customer’s requirement.
