Hunan New Diamond Construction Machinery Co., Ltd.
Hunan New Diamond Construction Machinery Co., Ltd.
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NRC series Reverse Circulation Hammer for Mining tools
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.
Specifications
| Item Description | Weight(kg) | |||
| NRC45 | NRC55 | NRC65 | NRC52 | |
| 1, Internal Ciclip | 0.03 | 0.04 | 0.05 | 0.04 |
| 2, Air Screen | 0.35 | 0.44 | 0.65 | 0.44 |
| 3, Top Sub | 6.50 | 9.65 | 20.00 | 9.65 |
| 4, “O”Ring | 0.01 | 0.02 | 0.02 | 0.02 |
| 5, Sample Tube | 5.10 | 6.72 | 12.50 | 6.75 |
| 6, Check Valve | 0.25 | 0.68 | 0.85 | 0.68 |
| 7, Spring | 0.04 | 0.12 | 0.10 | 0.12 |
| 8, “O”Ring | 0.01 | 0.02 | 0.02 | 0.02 |
| 9, Air Distributor | 0.85 | 1.48 | 3.50 | 1.48 |
| 10, “O”Ring | 0.02 | 0.01 | 0.02 | 0.01 |
| 11, Internal Cylinder | 2.20 | 4.12 | 4.20 | 4.12 |
| 12, Piston | 8.50 | 16.90 | 24.00 | 16.90 |
| 13, External Cylinder | 14.50 | 19.50 | 32.00 | 21.50 |
| 14, Guided Sleeve | 1.20 | 0.90 | 5.50 | 1.90 |
| 15, “O”Ring | - | - | - | 0.02 |
| 16, Stop “O”Ring | - | - | - | 0.01 |
| 17, Stop Ring | - | - | - | 0.32 |
| 18, Sharout | - | - | - | 1.86 |
| 19, Drive Chuck | 3.20 | 5.65 | 6.50 | 4.17 |
| 20, Bit Retaining Pin | 0.01 | 0.15 | 0.30 | - |
| 21, Drill Bit | 10.50 | 15.80 | 31.00 | 11.05 |
Feature Advantage
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.