1. Face convex type: This kind of drill bit is divided into two types, single boss and double boss end face, the latter is mainly used for drill bit with larger diameter. The end face convex type DTH drill bit can maintain a high rock drilling rate when drilling hard and hard abrasive rock, but the straightness of the drilling hole is poor, and it is not suitable for rock drilling with high blast hole flatness. engineering.
2, end face flat type: This shape of the drill bit is more durable, suitable for drilling hard and extremely hard rock, but also suitable for drilling medium and hard rock and soft rock with low flatness.
3. Concave face type: This shape has a conical concave part on the end face of the bit. It is a bit of nucleation during the rock drilling process to maintain the centering performance of the drill bit. The drill hole has a good straight line. Degree, this drill bit has good drainage effect and fast drilling speed. It is a dTH drill bit that is used more on the market.
4. End face deep concave center type: The drill bit of this shape is evolved from the same type of ball tooth bit, and the center end of the end face of the drill bit has a deep concave central portion. It is used for nucleation during rock drilling and ensures the straightness of the blasthole when drilling deep holes. It is only suitable for drilling soft rock and medium hard rock.
The drill bit used in the mine is mainly used for low wind pressure downhole drill bit:
In the case of large-scale engineering and mining machinery that cannot be used for construction, drilling tools must be used when drilling and blasting. Actually
Turn the big stone into a small stone, which is good for moving.
Note: In places where the land price is expensive, when the foundation is not convenient for excavation, the high-pressure drill bit of 800mm or more is also used to piling the base hole.
Advantages
Compared with the oversea brands, our advantages are bellowing:
A. Our products can match over 95% against the original products
B. Price are competitive against the famous brands and best quality against the small factory
| Product Name: |
DTH drill bits |
| Description: |
DTH drill bits are used for blast hole drilling and water well drilling projects.
Working with DTH hammer, mainly applied in Mining,
Marble quarry or well drilling and other construction projects. |
| Material: |
High quality carbide + High quality carbon steel |
| MOQ: |
5pcs |
| Compatibility Series: |
COP/ SD/ DHD/ IR/ Mission/ QL/ BR/ CIR etc |
| Specification: |
Diameter: (mm) |
Weight: (kg) |
| Low air pressure DTH bits CIR type |
68 ~ 200 |
2.6 ~ 48 |
| Middle air pressure BR & COP type |
76 ~ 110 |
3.8 ~ 15 |
| 3 inch high Air pressure DTH bits |
85 / 90 / 95 / 100 / 105 |
4.2 ~ 5.5 |
| 4 inch high Air pressure DTH bits |
105 / 110 / 115 / 120 / 127 |
9 ~ 12 |
| 5 inch high Air pressure DTH bits |
133 / 140 / 146 / 152 / 165 |
15 ~ 18.5 |
| 6 inch high Air pressure DTH bits |
152 / 165 / 178 / 190 / 203 |
26 ~ 36 |
| 8 inch high Air pressure DTH bits |
195 / 203 / 216 / 254 / 305 |
33 ~ 95 |
Made with high quality of raw material through special heat treatment, especially, tungsten carbide of tapered button bits are from Boart long year, widely applied in Hand Hold ( short-hole) drilling system for dimensional stone quarrying. At now, we are exporting the huge qty of Q7- 33- 7 22-80, Q9 -45 -12 22- 71 for Indian quarry and Norway, Finland quarry.
Diameter of bits from 30mm to 50mm with 4, 6, 7, 11, 12 degree, premium alloy tapered drill steel with Hexagonal. 22mm and Hexagonal. 25mm, The deliver capacity are very strong and can completely meet customer's requirements on delivery design, number of buttons is 4, 5, 6, 7, 8, 9, 7 buttons is very popular for hold held (short holes ) and blast drilling system.
Main Products:
1-12 inch middle-low/high air pressure DTH hammers & bits
Big hole high air pressure DTH hammer using in water well, oil, gas and construction drilling
Eccentric overburden drilling Equipment
Hole opener bit
Rock thread bit (R22, R25, R28, R32, R35, R38, T38, T45, T51, ST58, GT60)
Extension Rod, M/F Rod, M/m Rod, Drift Rod,
Shank adapter, coupling sleeves and all kinds of adapters
About Us:
1. Our factory has been specialized in manufacturing drilling tools and spare parts for over 10 years.
2. We have advanced technology and equipment.
3. Our technician has more than 13 year's professional working experience.
4. Rock drilling tools are exported throughout the world. Main market: Norway, Turkey, USA, Canada, Australia, Brazil, Uruguay, Iran, Philippines, Thailand, India, etc.
packaging:
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