Hunan New Diamond Construction Machinery Co., Ltd.
Hunan New Diamond Construction Machinery Co., Ltd.
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Description
With professional manufacturing experience in Reverse Circulation Hammer production, It strictly matches with API standard and other Chinese industry standards.It is durable for being produced with advanced craftwork and good material.
It also has the followingadvantages:
1. Deliver maximum energy to drilling bit, fast drilling speed and low air consumption due to the special inner structure of Reverse Circulation Hammer designed according to newest rock drilling theory.
2. Smooth performance and long service life of Reverse Circulation Hammer due to high quality alloy steel materials and advanced processing technology adapted.
3. Low problem rate and easy to maintenance due to simple, reliable and easy assemble and disassemble inner structure of Reverse Circulation Hammer.
4. Easy to depart bit from hammer due to multi—head thread connecting chuck and cylinder of Reverse Circulation Hammer.
5. Interchangeable with DTH bit and drill pipe.
Suitable choice of raw material, advanced processing technology and perfect quality warranty.
With hardened treatment, drilling life can be extended and then cost can be reduced.
Size range 4.5’’,5”,5.5 ’’ etc.
Shank styles: NRC45,NRC55,NRC65,PR52
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.