New Design DTH Drill Bits For NUMA Series High Air Pressure DTH Hammer
We can design and manufacture the personalized products to meet your specical apllication, such as changing the tungsten carbide insert profile (spherical, ballistic, etc.), face profile (flat face, concave, convex, etc.), and flushing holes.
NUMA Series DTH Bit Specification:
| NUMA Series DTH Button Bit |
| DTH Button Bit | Diameter | Buttons and Size (mm) | Flushing hole | Weight |
| mm | inch | Front | Gauge | kg |
| Numa100 | 254 | 10 | 21x16 | 12x18 | 2 | 90.0 |
| 305 | 12 | 36x16 | 12x18 | 4 | 102.0 |
| 311 | 12 1/4 | 36x16 | 12x18 | 4 | 104.0 |
| 318 | 12 1/2 | 38x16 | 12x18 | 4 | 106.0 |
| 330 | 13 | 42x16 | 14x18 | 4 | 112.0 |
| NUMA120 | 305 | 12 | 12x18 | 36x16 | 4 | 152.0 |
| 311 | 12 1/4 | 12x18 | 36x16 | 4 | 158.0 |
| 330 | 13 | 16x18 | 42x16 | 4 | 165.0 |
| 346 | 13 5/8 | 16x19 | 48x16 | 4 | 178.0 |
| 381 | 15 | 16x19 | 48x16 | 4 | 195.0 |
| NUMA125 | 305 | 12 | 12x18 | 36x16 | 4 | 170.0 |
| 311 | 12 1/4 | 12x18 | 36x16 | 4 | 173.0 |
| 330 | 13 | 16x18 | 42x16 | 4 | 182.0 |
| 346 | 13 5/8 | 16x19 | 48x16 | 4 | 191.0 |
| 381 | 15 | 16x19 | 48x16 | 4 | 200.0 |
- High quality, cost effective, reliable.
- Premium Aircraft Alloy Steel
- Quality Carbide
- Exact Heat Treatments
- State of the Art Design and Manufacturing
Pictures
Applications
• Underground mining
• Down the hole rock drilling
Bit Face Shape Selection:
Center Drop Face
For high penetration rates in soft to medium hard and fissured rock formations. Low to medium air pressure.
Maximum hole deviation control.
Concave Face
The all-around application bit face specifically for medium hard and homogenerous rock formations.
Good hole deviation control and good flushing capacity.
Convex Face
For high penetration rates in soft to medium-hard with low to medium air pressure. It is the most resistance to steel wash, any may reduce the load and wear on gauge buttons, but poor hole deviation control.
Double Gauge Face
This kind of face shape is suitable for fast penetration rates in medium to hard rock formations. Designed for high air pressure and good resistance to steel wash step gauge bit.
Flat Face Bit
This kind of face shape is suitable for hard to very hard and abrasive rock formation is applications with high air pressure. Good penetration rates and resistance to steel wash.
Company Information
KSQ Technologies (Beijing) Co. Ltd. has significant experience and know-how in the supply of materials, components, finished goods, specially designed/engineered equipment, and services from China. The company caters to medium to large scale clients who are doing projects and capital expansion, as well as to firms who require support with consumable products, maintenance, and repair operations. Our operations are based on the unique expertise of our people and knowledge with customer processes.
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Tunneling / Mining Carbide Tipped Drill Bits High Penetration 254mm - 381mm Size Images
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