Hunan New Diamond Construction Machinery Co., Ltd.
Hunan New Diamond Construction Machinery Co., Ltd.
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Description
With professional manufacturing experience in DTH hammer production, our factory can supply you with high pressure and medium to low pressure DTH hammers. It strictly matches with API standard and other Chinese industry standards. It is durable for being produced with advanced craftwork and good material.
Applications
It is mainly used in geological exploration, coal mine, water conservancy and hydropower, highway, railway, bridge, construction and so on.
Specifications
| Technical Data | |||
| Length(Without Bit) | N100A | N120A | N125A |
| 1545mm | 1880mm | 1880mm | |
| Weight(Without Bit) | 305.00kg | 475.00kg | 470.00kg |
| External Diameter | Ø226mm | Ø275mm | Ø275mm |
| Bit Shank | NUMA100 | NUMA120 | NUMA125 |
| Hole Range | Ø254-Ø311mm | Ø305-Ø445mm | Ø305-Ø445mm |
| Connection Thread | API4 1/2REG API5 1”/2REG | API5 1/2REG API6 5”/8REG | API5 1/2REG API6 5”/8REG |
| Working Pressure | 2.0-3.5Mpa | 2.0-3.5Mpa | 2.0-3.5Mpa |
| Impact Rate at 17 Bar | 20HZ | 20HZ | 20HZ |
| Recommended Rotation Speed | 15-25r/min | 15-25r/min | 15-25r/min |
| Air Consumption | 1.0Mpa:22.0m³/min 1.8Mpa:40.0m³/min 2.4Mpa:65.0m³/min | 1.0Mpa:28.0m³/min 1.8Mpa:50.0m³/min 2.4Mpa:71.0m³/min | 1.0Mpa:28.0m³/min 1.8Mpa:50.0m³/min 2.4Mpa:71.0m³/min |
Advantages:
Our DTH hammer and bits has following advantages:
Deliver maximum energy to drilling bit, fast drilling speed and low air consumption due to inner structure of DTH hammer designed according to newest rock drilling theory.
Smooth performance and long service life of DTH hammer due to high quality alloy steel materials and advanced
processing technology adapted.
Low problem rate and easy to maintenance due to simple , reliable and easy assemble and disassemble inner structure of hammer.
Easy to depart bit from hammer due to multi-head thread connecting chuck and cylinder of hammer.
Interchangeable with DTH bit and dill pipe manufactured by many brands all over the world.
