High Air Pressure 10 inch DTH NUMA100-305mm drill bit for overburden
10 inch High air pressure DTH bit
Non shank and Carbide broken,
DTH hammer bits are available in sizes from 2" to 36", with all shanks, multiple head/face designs, and with a variety of tungsten carbide button styles to suit a wide variety of drilling conditions.
DTH accessories, including hammer oil andlube, grinding and sharpening tools, adapter, subs, shock absorbers, and more, are available to complement our DTH product offering.
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 |
Pictures
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. is a diversified enterprise based in Beijing, China, offering a portfolio of products that help contribute to a better bottom line and increase workplace safety for the construction and mining industries.
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.