Active Member
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[China]
Address: No. 018, Yaojiapo Road., Jinzhou New District, Ningxiang County
Contact name:Spring Huang
Changsha Tianhe Drilling Tools and Machinery Co.,Ltd. |
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DHD360-165mm Rock Drill Bits And QL60 And COP66 And SD6 For Mining And Water Well Rock Drilling.
| General Introduction |
| HAMMER INCH | BIT DIA(MM) | BIT DIA(INCH) | SHANK |
| 1" | 64MM-76MM | 2 1/2"-3" | BR1 |
| 2" | 76MM-90MM | 3"-3 1/2" | BR2/PAD320 |
| 3" | 85MM-105MM | 3 2/5"-4" | BR3/COP32 |
| 3.5" | 85MM-110MM | 3 2/5"-4 1/3" | DHD3.5/IR3.5/COP34 |
| 4" | 105MM-140MM | 4"-5 1/2" | DHD340/COP44/QL40/SD4/MISSION40 |
| 5" | 127MM-200MM | 5"-8" | DHD350/COP54/QL50/SD5/MISSION50 |
| 6" | 152MM-254MM | 6"-10" | DHD360/COP64/QL60/SD6/MISSION60 |
| 8" | 195MM-350MM | 7.2/3"-13 4/5" | DHD380/COP84/QL80/SD8/MISSION80 |
| 10" | 254MM-380MM | 10"-15" | QL10/SD10/NUMA100 |
| 12" | 305MM-457MM | 12"-18" | SD12/NUMA120/DHD112 |
| 14" | 445MM-600MM | 17 1/2"-23 1/2" | TH14/TS14 |
Bit Face Shape Selection:
1. Drop Center Bit
For high penetration rates in soft to medium hard and fissured rock formations. Low to medium air pressures. Maximum hole deviation control.
2. Concave Face
The all-around application bit face specifically for medium hard and homogeneous rock formations. Good hole deviation control and good flushing capacity.
3. Convex Face
For high penetration rates in soft to medium-hard with low to medium air pressures. It is the most resistance to steel wash, and may reduce theload and wear on the gauge buttons, but poor hole deviation control.
4. Flat Face Bit
This kind of face shape is suitable for hard to very hard and abrasive rock formations in applications with high air pressures. Good penetration rates an resistance to steel wash.
Carbide Button Shape Selection:
1. Semi-Ballistic Buttons
2. Ballistic Button
3. Spherical Button
4. Two-step Button
Our Advantages:
We have advanced production equipment & talented researchers
& technicians & rich experiences in R & D and
production.
We using the best quality raw materials.
We adopting advanced production technology & strict testing
procedure.
We passed ISO9001 quality management system certification.
We accept OEM manufacturing and produce on your design.
| Raw Material |
Steel:
First class special alloy steel with high strength, heat resistance and wearable
Carbide
The best tungsten carbides from China are commonly applied.
Tungsten carbide from European is also available.
| Specification |
1.Steel Carbide
2.12 years experience
3.Can match to the original bit shank
4.Atlas quality
