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.
