Hunan New Diamond Construction Machinery Co., Ltd.
Hunan New Diamond Construction Machinery Co., Ltd.
Add to Cart
Description
Shank : NRC45,NRC55,NRC65,PR52
When percussion or hammer drilling the percussion mechanism is called a DTH or down the hole hammer. This drilling tool is located directly above the down hole hammer bit. The driller transfers weight to the bit through the drill pipe as well as provides some rotation. Through the use of a compressor, the pressurized air is forced to the down hole hammer. As the drilled hole gets deeper the driller adds more drill pipe to the string. The piston strikes the impact zone of the hammer bit; hammers are always used as part of a casing advancement system and can be used in reverse circulation applications. DTH hammers are common when drilling blast holes and water wells.
Applications
Our DTH hammer are widely applied to open pit and underground mining to drill blasting holes, drainage holes, ventilation holes, center holes or blasting holes of raising boring, pipe holes and other deep holesin all various strength rocks, such as quarry exploitation, earthwork projects, water-well, constructionsand so on.
| Technical Data | ||||
| Length(Without Bit) | NRC45 | NRC55 | NRC65 | NRC52 |
| 1020mm | 1111mm | 1250mm | 1208mm | |
| Weight(Without Bit) | 94.00 kg | 66.50 kg | 110.00kg | 70.00kg |
| External Diameter | Ø99mm | Ø126mm | Ø146mm | Ø126mm |
| Bit Shank | NRC45 | NRC55 | NRC65 | PR52 |
| Hole Range | Ø114-Ø127mm | Ø133-Ø15mm | Ø155-Ø190mm | Ø133-Ø146mm |
| Connection Thread | custom | custom | custom | custom |
| Working Pressure | 1.0-3.0Mpa | 1.5-3.5Mpa | 1.5-3.5Mpa | 1.5-3.5Mpa |
| Impact Rate at 17 Bar | 30HZ | 35HZ | 28HZ | 35HZ |
| Recommended Rotation Speed | 25-40 r/min | 25-40 r/min | 25-40 r/min | 25-40 r/min |
| Air Consumption | 1.0Mpa:8m³/min 1.8Mpa:12m³/min 2.4Mpa:16m³/min | 1.7Mpa:16m³/min 2.4Mpa:22m³/min 3.0Mpa:28m³/min | 1.7Mpa:20m³/min 2.0Mpa:26m³/min 3.0Mpa:35m³/min | 1.7Mpa:16m³/min 2.4Mpa:22m³/min 3.0Mpa:28m³/min |
1. Price commitment: in order to ensure the high reliability of products, raw material selection are using grapefruit brand products; under the same competitive conditions,and not to reduce product technical performance on the basis of sincerity at a favorable price to customers.
2. Quality commitment: product manufacturing and testing have quality records and inspection data; the performance of the product can withstand customer inspection.
3. Customer service: in order to create new diamond brand, enhance the visibility of enterprises, establish corporate image, we serve customers with the principle of "preferential prices, good service, reliable product quality" principle.
