Changsha Tianhe Drilling Tools and Machinery Co.,Ltd.
| Payment Terms | L/C, T/T |
| Supply Ability | 50000 Piece/Pieces per Month |
| Delivery Time | In 15 days after receiving the advance payment |
| Packaging Details | Inner package with cartons, outer package with wooden cases. |
| Color | As customer's need |
| Usage | Mining or marble quarry or water well drilling |
| Hammer | 8" DTH hammer |
| Flushing hole | 2 |
| Sample: | avaliable |
| Brand Name | Teamwhole |
| Model Number | Mission80-254,QL80-254,SD8-254 |
| Certification | ISO9001 |
| Place of Origin | Hunan, China (Mainland) |
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Product Specification
| Payment Terms | L/C, T/T | Supply Ability | 50000 Piece/Pieces per Month |
| Delivery Time | In 15 days after receiving the advance payment | Packaging Details | Inner package with cartons, outer package with wooden cases. |
| Color | As customer's need | Usage | Mining or marble quarry or water well drilling |
| Hammer | 8" DTH hammer | Flushing hole | 2 |
| Sample: | avaliable | Brand Name | Teamwhole |
| Model Number | Mission80-254,QL80-254,SD8-254 | Certification | ISO9001 |
| Place of Origin | Hunan, China (Mainland) | ||
| High Light | button drill bit ，dth installation tools | ||
MISSION80-254mm rock drill bits widely used in blasting hole and water well drilling.
| Matched hammer Dia. | Bit diameter | No.× Button Dia.(mm) | Air holes |
Weight (kg) |
Shank | ||
| mm | inch | Gauge | Front | ||||
| 8” | 203 | 8 | 9*18 | 6*18+4*16 | 3 | 46 |
DHD380/SD8 /QL80/MISSION80 |
| 216 | 8 1/2 | 10*18 | 6*18+7*16 | 3 | 50 | ||
| 254 | 10 | 10*18 | 6*18+9*16 | 3 | 60 | ||
| 305 | 12 | 12*18 | 12*18+12+16 | 3 | 82 | ||
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
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.
Quality Warranty:
Our company response for any quality problem caused by material or machining defect.
Company Details
Business Type:
Manufacturer
Year Established:
2002
Total Annual:
10Million-50Million
Employee Number:
201~300
Ecer Certification：
Active Member
Changsha Tianhe Drilling Tools and Machinery Co., Ltd., is a professional geotechnical drilling tools manufacturer since 2002. We’re located in Jinzhou New District,Ningxiang County, Changsha,Hunan province.Our main products include DTH (down-the-hole) hammers and bits with capacity of drillin... Changsha Tianhe Drilling Tools and Machinery Co., Ltd., is a professional geotechnical drilling tools manufacturer since 2002. We’re located in Jinzhou New District,Ningxiang County, Changsha,Hunan province.Our main products include DTH (down-the-hole) hammers and bits with capacity of drillin...
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