
Down-the-Hole Hammer
The 55A DTH hammer is a down-the-hole drilling tool designed for mining, quarrying and engineering drilling operations. It features wear resistance and stable impact performance, and can be used with DTH drilling rigs, water well drilling rigs and other equipment.
This model is suitable for drilling diameters of 85-185mm and can be used in various engineering drilling scenarios. The DTH hammer uses compressed air to drive an internal piston in high-frequency reciprocating impact on the drill bit, providing strong rock-breaking capability in hard and medium-hard rock formations.
| Product Model | 55A |
| Product Name | DTH Hammer |
| Product Feature | Wear-resistant |
| Application Scope | Mining, quarrying, road drilling and other engineering drilling |
| Drilling Diameter | 85-185 |
| Drilling Depth | 200 |
| Drilling Speed | 300-600 |
| Impact Energy | 180-220 |
| Impact Frequency | 18-22 |
| Specification | 55A Hammer |
Note: The original data does not specify the units for drilling depth, drilling speed, impact energy and impact frequency, so this page retains the original values without adding units arbitrarily.
The 55A DTH hammer emphasizes wear resistance, making it suitable for high-frequency, high-load drilling environments such as mines and quarries, helping to improve durability in continuous construction.

This model is suitable for drilling diameters ranging from 85-185mm, covering various mining, engineering and water well drilling needs. In actual matching, it should be confirmed based on drill bit diameter, hole diameter requirements and air compressor parameters.
The DTH hammer breaks rock through high-frequency impact combined with drill bit rotation, making it suitable for medium-hard to hard rock drilling conditions in mining, quarrying and engineering construction.
The 55A DTH hammer can be used for mining blast holes, quarry drilling, road and engineering rock drilling, water well drilling and other scenarios. As a drilling tool matched with drilling rigs, it can be used in combination with DTH drilling rigs, water well drilling rigs and drill pipes and drill bits of corresponding specifications.
When selecting the 55A DTH hammer, it is recommended to confirm the drilling rig model, target hole diameter, drilling depth, rock hardness, drill pipe specifications, drill bit specifications and the working pressure and air displacement of the air compressor to ensure the hammer matches the entire drilling tool system.
The actual drilling efficiency of the DTH hammer is affected by rock hardness, hole diameter, air supply pressure, air displacement, drill bit wear and operating methods. During use, stable air supply should be maintained, and the wear of the hammer, drill bit and connection parts should be checked regularly.

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