Low Pressure DTH Bits 100mm CIR90 Bits For Drilling Blast Holes
Product Description
In DTH drilling, the rock drilling bit is a continuation of the shank, which the rock drill piston strikes directly. Since the piston is in direct contact with the drill bit, little energy is lost. This gives DTH drilling a nearly constant penetration rate regardless of hole length.
Competitive Advantage
• High grade tungsten carbide inserts
• Bit bodies manufactured from high grade steel and processed using state-of-the-art CNC machinery and heat treatment
Our DTH hammer and bits are compatible with CIR, DHD, QL,SD,Mission, etc. series of Atlas and etc. They are with high efficiency, low failure rate and long service life. They are with high efficiency, low failure rate and long service life, which can realize efficient and economical drilling even for all kinds of high hardness, high abrasive rocks and other harsh conditions.
Products Parameters
Specification of other DTH Bits:
| Type | Bit Dia.(mm) | Sprine NO. | Weight(Kg) |
| CIR50 | 50 | 4 | 2.2 |
| CIR65 | 68 | 4 | 2.5 |
| CIR70 | 76 | 4 | 3.4 |
| CIR80 | 83 | 6 | 3.45 |
| CIR90 | 90,100,110,120,130 | 6 | 4.0-7.0 |
| CIR110 | 110,120,130,140,150 | 6 | 4.5-8.5 |
| CIR130 | 130,140,150 | 6 | 6.5-9.0 |
| CIR150 | 150,180,200 | 6 | 12.0-16.0 |
| CIR170 | 170,180,200 | 6 | 16.0-25.0 |
| CIR200W | 200 | 6 | 30 |
Different face style makes DTH bit is suitable for various rock conditions.
Flat face: This is an universal design, especially for hard and abrasive rock formation. So typically, flat face with hemi-spherical buttons design is the most popular choice.
Convex face: A classic design for soft to medium hard rock formation which is not so abrasive. This design have very excellent penetration rate but poor in hole deviation if rocks are hard.
Concave face: Medium hard to hard rock formations which is less abrasive and fractured. Especially for deep hole drilling, excellent control over hole deviation.
How to order
Shank Type + Diameter + Face Design + Button Configuration
Company Information
The MIROC® Rock Drilling Tools product line by KSQ Technologies (Beijing) Co.Ltd. is the result of years of advanced engineering, precision manufacturing, and dedication to the use of high-quality materials. Rock Drilling Tools are used by many drilling professionals related to mining, construction, tunneling, and quarrying projects around the globe.
MIROC® Rock Drilling and Ground Support Tools include:
1. Low pressure DTH Hammer
2. Medium pressure DTH Hammer
3. High pressure DTH Hammer
4. DTH Drill bit
5. DTH Drill pipe
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Low Pressure 100mm CIR90 Dth Drill Bits For Drilling Blast Holes Images
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