| Customization: | Available |
|---|---|
| Customized: | Customized |
| Standard: | ISO9001:2015 |
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| General Introduction |
Changsha Tianhe Drilling Tools and Machinery Co., Ltd. is a leading supplier and manufacturer of high-performance concave DTH rock drill bits for mining drilling. Our durable and efficient drill bits are perfect for blasting hole drilling, water well drilling, and more. Choose us as your reliable drill bit supplier in [Location].
Drop Center Bit: Ideal for achieving high penetration rates in soft to medium hard and fissured rock formations. Suitable for low to medium air pressures and offers maximum hole deviation control.
Concave Face: Designed for all-around applications in medium hard and homogeneous rock formations. Provides good hole deviation control and flushing capacity.
Convex Face: Offers high penetration rates in soft to medium-hard formations with low to medium air pressures. Resistant to steel wash and reduces load and wear on gauge buttons, but may have poor hole deviation control.
Flat Face: Suitable for hard to very hard and abrasive rock formations with high air pressures. Provides good penetration rates and resistance to steel wash.
For more information, please visit the website of Changsha Tianhe Drilling Tools and Machinery Co., Ltd.
| Raw Material |
Our first-class special alloy steel is designed with exceptional strength, heat resistance, and durability. It is specifically engineered to withstand the toughest conditions, ensuring reliable performance and longevity.
Our product features the best tungsten carbides sourced from China, renowned for their superior quality and reliability. These carbides are widely used in various industries due to their exceptional hardness and wear resistance. Additionally, we also offer tungsten carbide from Europe, providing our customers with a wider range of options to suit their specific needs.
Experience the difference in performance and reliability with our top-notch materials. Trust in our high-quality steel and carbide products that meet the demands of English-speaking natives.
| Model | Bit diameter mm(inch) | Weight |
| TH79(3.5inch) | 90mm-100mm(3 1/2-3 7 /8) | 4-4.5 |
| DHD3.5 | 90mm-105mm(3 1/2-4 1/8) | 4.5-5.5 |
| BR33 | 90mm-100mm(3 1/2-3 7 /8) | 4-4.5 |
| DHD340 | 105mm-138mm(4 1/10-5 2/5) | 8-12 |
| QL40 | 110mm-133mm(4 3/8-5 1/4) | 10-12 |
| DHD350 | 135mm-165mm(5 3/10-6 1/2) | 15.2-18 |
| MISSION50 | 138mm-165mm(5 2/5-6) | 16-18 |
| QL50 | 138mm-152mm(5 2/5-6) | 16-18 |
| SD5 | 138mm-152mm(5 2/5-6) | 16-18 |
| MAHC50TS398(20inch) | 138mm-152mm(5 2/5-6) | 16-18 |
| DHD360 | 152mm-203mm(6-8) | 24-33 |
| MISSION60 | 152mm-203mm(6-8) | 21-30 |
| SD6 | 152mm-254mm(6-10) | 24-50 |
| QL60(COP64G) | 152mm-203mm(6-8) | 24-33 |
| XL60 | 152mm-190mm(6-7 1/2) | 22-27 |
| DHD380 | 200mm-305mm(7 7/8-12) | 47-82 |
| SD8 | 200mm-305mm(7 7/8-12) | 47-82 |
| QL80 | 200mm-305mm(7 7/8-12) | 48-84 |
| TH220 | 240mm-350mm(9 2/5-13 7/10) | 75-125 |
| NUMA100 | 240mm-350mm(9 2/5-13 7/10) | 75-125 |
| SD10 | 240mm-350mm(9 2/5-13 7/10) | 75-125 |
| DHD112 | 310mm-444.5mm(12 1/5-17 1/2) | 140-252 |
| SD12 | 310mm-444.5mm(12 1/5-17 1/2) | 142-254 |
| NUMA120 | 310mm-444.5mm(12 1/5-17 1/2) | 140-252 |
| TH398(20inch) | 500mm-550mm(19 3/5-21 3/5) | 480-510 |
| TH600(32inch) | 800mm-1000mm(31 2/5-39 3/10) | 680-984 |
| Package |
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