12inch Quarry / Mining Rock Drilling DTH Hammer Bits with Heat Treatment High Performance
Application
DTH (Down to Hole) drill bit, also called spline connected drill bit, is mainly used in large scale mine (open and underground), open quarry and construction. The hammer is situated down the hole in direct connected with the drill bit with splines in the bit. The hammer piston strikes the drill bit resulting in an efficient transmission of the impact energy and insignificant power losses with the hole depth.
Our tools are widelyused in different drilling applications including mining,quarrying, water well drilling, geotechnical industries and etc.
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.
All the products are manufactured as per the international standard and well compatible with the brand of Atlas Copco, Ingersoll-Rand, etc
• Underground mining
• Tunneling
• Quarry benching operations
Characteristics
1. Deliver maximum energy to drilling bit, fast drilling speed and low air consumption due to the special inner structure of HD series DTH hammer designed according to newest rock drilling theory.
2. Smooth performance and long service life of HD series DTH hammer due to high quality alloy steel materials and advanced processing technology adapted.
3. Low problem rate and easy to maintenance due to simple, reliable and easy assemble and disassemble inner structure of hammer.
4. Easy to depart bit from hammer due to multi—head thread connecting chuck and cylinder of hammer.
5. Interchangeable with DTH bit and drill pipe
Specification
| Drill Bits | Bit Dia.(mm) | No.Air Holes | Gauge Buttons | Front Buttons | Weight (kg) | Parts No. |
| DHD1120 
| 305 | 4 | 12×18 | 36×16 | 152.0 | DHD1120-305 |
| 311 | 4 | 12×18 | 36×16 | 157.0 | DHD1120-311 |
| 330 | 4 | 16×18 | 42×16 | 165.0 | DHD1120-330 |
| 356 | 4 | 16×19 | 48×16 | 178.0 | DHD1120-356 |
| 381 | 4 | 16×19 | 48×18 | 198.0 | DHD1120-381 |
| SD12 
| 305 | 4 | 12×18 | 36×16 | 156.0 | SD12-305 |
| 311 | 4 | 12×18 | 36×16 | 168.0 | SD12-311 |
| 330 | 4 | 16×18 | 42×16 | 180.0 | SD12-330 |
| 356 | 4 | 16×19 | 48×16 | 191.0 | SD12-356 |
| 381 | 4 | 16×19 | 48×18 | 200.0 | SD12-381 |
| NUMA120 
| 305 | 4 | 12×18 | 36×16 | 152.0 | N120-305 |
| 311 | 4 | 12×18 | 36×16 | 158.0 | N120-311 |
| 330 | 4 | 16×18 | 42×16 | 165.0 | N120-330 |
| 356 | 4 | 16×19 | 48×16 | 178.0 | N120-356 |
| 381 | 4 | 16×19 | 48×18 | 195.0 | N120-381 |
| NUMA125 
| 305 | 4 | 12×18 | 36×16 | 170.0 | N125-305 |
| 311 | 4 | 12×18 | 36×16 | 173.0 | N125-311 |
| 330 | 4 | 16×18 | 42×16 | 182.0 | N125-330 |
| 356 | 4 | 16×19 | 48×16 | 191.0 | N125-356 |
| 381 | 4 | 16×19 | 48×18 | 200.0 | N125-381 |
| We can design and manufcture ccording to customer's requirement of the bit daimeter,No.of air holes,carbide button shape and the face shape. |
Packing& Delivery
Service
In our after sales service system, We establish perfect control system strictly according to ISO-9000 series, in this system, technology date and problem solve solution and preventive measures will be provided in any maintain project, all the spare parts will be used in new OEM products with installation instructions, packing list, manufacturer's instruction, qualification and Warranty certificate.
We provide "one equipment & one case, endless service, namely the after sales service begin from the order confirmation, last for the working life of the equipment.
Purchase Process
Product Tags:
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12 Inch DTH Hammer Button Bits For Quarry / Mining Rock Drilling High Performance Images
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