| After-sales Service: | Yes |
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| Warranty: | 1year |
| Certification: | CE |
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Shipping Cost:
Estimated freight per unit. |
about shipping cost and estimated delivery time. |
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| Payment Method: |
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| Initial Payment Full Payment |
| Currency: | US$ |
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| Return&refunds: | You can apply for a refund up to 30 days after receipt of the products. |
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Suppliers with verified business licenses
Audited Supplier 
Our down the hole hammer can also be used for rotary drilling rigs.Rotary drilling rig is a construction machine used for hole forming in building foundation engineering. It is mainly applicable to the construction of sandy soil, cohesive soil, silty soil and other soil layers. It has the characteristics of fast hole forming speed, less pollution and strong mobility, so it is widely used. However, for hard rock formations, if the existing rotary drilling rig is used for forced drilling, not only the drilling speed is slow, the drilling tool is worn out quickly, the mechanical equipment is worn out, and mechanical accidents such as drill pipe splitting are easy to occur. Therefore, it is necessary to replace the drilling equipment specially for hard rock formations.
In the actual pile foundation hole construction process, more than two different stratum structures are often encountered. Therefore, the construction party needs to replace the drilling equipment according to the stratum characteristics, This construction method of replacing drilling equipment has the following disadvantages: because different drilling equipment is required, the construction cost is very high; The drilling equipment is frequently replaced, so the construction efficiency is low. Therefore, how to improve the existing rotary drilling rig so that it can be applied to drilling in a variety of strata, including hard rock strata, is still a technical problem urgently to be solved by those skilled in the art.
| Ref. | Parts | Weight | Part No |
| 01 | Top Sub | 7.4 Kg | 01-SP480-01 |
| 02 | "O' Ring | 0.01 Kg | 01-SP480-02 |
| 03 | Check Valve | 0.3 Kg | 01-SP480-03 |
| 04 | Spring | 0.04 Kg | 01-SP480-04 |
| 05 | Valve Seat | 1 Kg | 01-SP480-05 |
| 06 | Inner Cylinder | 1.5 Kg | 01-SP480-06 |
| 07 | Piston | 8 Kg | 01-SP480-07 |
| 08 | Piston Case | 11.6 Kg | 01-SP480-08 |
| 09 | Guided Sleeve | 1.5 Kg | 01-SP480-09 |
| 10 | Check Ring | 0.02 Kg | 01-SP480-10 |
| 11 | Retainer Ring | 0.34 Kg | 01-SP480-11 |
| 12 | Drive Chuck | 3.1 Kg | 01-SP480-12 |
| 13 | Drill Bit | 01-SP480-13 |
Main Feature:
-New products designed based on mining condition in china, improving by advanced technology from global market.
-Superior materials, advanced process,guaranteed quality.
-Faster drillinq rate.
-Hardness can be enhaced to expand the lifespan of hammer, and lower the cost. Huge impulse with low consumption of electricity.
-The modern theory is adopted in the structural design, which makes the stress.
-wave duration longer, the stress amplitudeis lower, and the piston life is long.
Suppliers with verified business licenses
Audited Supplier 
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