High Quality DHD360-165mm DTH Drill Bits for Water Well Drilling
Product features of DTH Hammers and bits
China DTH Hammer Suppliers and Manufacturers
With professional experience in the production and manufacture of
DTH hammers, our factory can provide you with high pressure and
medium and low pressure DTH hammers. It strictly complies with API
standards and other Chinese industry standards. Produced with
advanced craftsmanship and high-quality materials, it is durable.
It also has the following advantages:
1. The special internal structure of HD series DTH hammer designed
according to the latest rock drilling theory provides maximum
energy for the drill bit, fast drilling speed and low gas
consumption.
2. HD series DTH hammers are made of high-quality alloy steel
materials and advanced processing technology, with stable
performance and long service life.
3. The internal structure of the hammer head is simple and
reliable, easy to disassemble and assemble, with low failure rate
and convenient maintenance.
4. The multi-head thread connects the chuck and the hammer
cylinder, so that the drill can be easily separated from the
hammer.
5. Interchangeable with DTH drill bit and drill pipe
Technical specification of DTH Hammers and bits
| DTH hammer type | HD35 | HD45 | HSD4 | HQL4 |
| Length(less bit) mm | 930mm | 1030 | 1084 | 1097 |
| Weight(less bit) kg | 25kg | 39 | 40.5 | 41 |
| External diameter mm | Φ82mm | Φ99 | Φ99 | Φ99 |
| Bit shank | DHD3.5 | COP44 DHD340 | SD4 | QL40 |
| Hole range(mm) | Φ90-110 | Φ110-135 | Φ110-135 | Φ110-135 |
| Connection thread | API 23/8" Reg. | API 2 3/8"Reg | API 2 3/8"Reg | API 2 3/8"Reg |
| | | |
| Working pressure | 1.0-1.5Mpa | 1.0-2.5Mpa | 1.0-2.5Mpa | 1.0-2.5Mpa |
| Impact rate at 1.5-1.7Mpa | 28Hz | 27Hz | 27Hz | 27Hz |
| Recommended Rotation speed | 25-40r/min | 25-40r/min | 25-40r/min | 25-40r/min |
| Air consumption | 1.0Mpa | 4.5m3/min | 6.0m3/min | 6.0m3/min | 6.0m3/min |
| 1.8Mpa | 9.0m3/min | 10.0m3/min | 10.0m3/min | 10.0m3/min |
| 2.4Mpa | / | 15.0m3/min | 15.0m3/min | 15.0m3/min |
| DTH hammer type | HD55 | HD55C | HSD5 | HQL5 |
| Length(less bit) mm | 1214 | 1160 | 1175 | 1156 |
| Weight(less bit) kg | 76.5 | 72.5 | 72.5 | 73 |
| External diameter mm | Φ125 | Φ125 | Φ125 | Φ125 |
| Bit shank | COP54 DHD350R | HD55C DHD350Q | SD5 | QL50 |
| Hole range(mm) | Φ135-155 | Φ135-155 | Φ135-155 | Φ135-155 |
| Connection thread | API 2 3/8"Reg | API 2 3/8"Reg | API 3 1/2"Reg | API 3 1/2"Reg |
| API 3 1/2"Reg | API 3 1/2"Reg | | |
| Working pressure | 1.0-2.5Mpa | 1.0-2.5Mpa | 1.0-2.5Mpa | 1.0-2.5Mpa |
| Impact rate at 1.5-1.7Mpa | 25Hz | 25Hz | 25Hz | 25Hz |
| Recommended Rotation speed | 20-35r/min | 20-35r/min | 20-35r/min | 20-35r/min |
| Air consumption | 1.0Mpa | 9.0m3/min | 9.0m3/min | 9.0m3/min | 9.0m3/min |
| 1.8Mpa | 15.0m3/min | 15.0m3/min | 15.0m3/min | 15.0m3/min |
| 2.4Mpa | 23.0m3/min | 23.0m3/min | 23.0m3/min | 23.0m3/min |
