The G7 fully hydraulic top hammer drill rig stands as our company's top choice, equipped with a powerful, potent diesel engine capable of handling the demanding power of tough working environments like high altitudes and freezing cold, featuring an Atlas Copco high-power, high-pressure rock drill noted for its excellent perforation efficiency. This product's relevant hole diameter varies between 76-115mm, extensively employed in earth excavation drilling, quarry mining, and slope treatment in open-pit mines and construction endeavors.
The Process of top hammer drill rig
The process of top hammer drilling encompasses multiple intricate steps. Initially, the top hammer drill is installed at the drilling location to ensure both stability and structural backing. Subsequently, the drilling column, which includes both drill pipe and drill bits, is secured to the rig. Engineered for top hammer drilling, the drill bit comes furnished with carbide buttons or blades shaped like chisels for effective rock penetration. As the rig operates, the drill pillar turns and forces into a rock formation. Concurrently, a hydraulic or pneumatic hammer is designed to hit the drill column's tip, thereby transferring the impact energy to the bit. This impact action breaks up the rock and uses water or air to flush the drill cuttings out. The process continues until the desired depth is reached and then the drill column is retracted. Top hammer drill is an efficient method of extracting valuable resources and building foundations in challenging geological conditions.
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Technical Parameters |
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G5 |
G7 |
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Hole range |
45 - 90 mm |
76 - 115 mm |
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Rod size |
T38/T45 |
T51 |
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Max. depth |
25m |
25 m |
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Drilling coverage area |
17 m2 |
17 m2 |
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Engine |
Cummins |
Cummins |
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Engine power |
134 kW/2200 r/min |
194 kW/2200 r/min |
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Drafter |
Atlas Copco RD14S / 14 kW |
Atlas Copco RD18S / 18 kW |
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Impact pressure |
14.5 bar |
20.0 bar |
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Advance itinerary |
3500mm |
3500mm |
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Propelling beam length |
6030mm |
6030mm |
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Advance compensation |
1400 mm |
1400 mm |
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Max. advancing speed |
0.9 m/s |
0.9 m/s |
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Max. thrust |
20 kN |
20 kN |
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Walking speed |
1.5/3.1 km/h |
1.5/3.1 km/h |
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Gradeability |
20° |
20° |
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Dimensions (L x W x H) |
10800x2350x3000 mm |
11610x2450x3200 mm |
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Weight |
13500kg |
14500kg |
Drilling Rig Features
Push Beam System
The aluminum alloy beam driven by cylinder and wire rope has higher strength and superior bending resistance to achieve ideal straightness of the hole, and the G7 top hammer drill machine is smoother when drilling compared to chain-driven rock drills. The push beam is equipped with a mechanized rod changing system, which allows the operator to complete the rod picking up and unloading operations in the cab, reducing labor intensity, saving labor costs and improving production efficiency.
Power system
It adopts National III standard high-power turbocharged diesel engine, which provides sufficient power reserve for the whole vehicle and makes the drill rig more adaptable to the harsh working environment such as high altitude and extreme cold. Top hammer drill machine equipped with screw-type air compressor, the drilling efficiency is improved while ensuring good slag discharge effect.
Chassis System
Crawler type traveling chassis, equipped with high-power two-speed hydraulic drive traction system and hydraulic swing adjustment system, as well as small body width design, make this top hammer drill machine with excellent off-road and maneuverability.
Hydraulic Rock Drill
Equipped with a high-power, high-pressure hydraulic system designed by Amberto Group, it has high drilling efficiency, high and low impact, rotary pressure control propulsion, double buffer system and automatic anti-jamming function, which reduces the loss of drilling tools and improves the adaptability to different rock conditions.
Drill Arm System
Adopting rectangular cross-section folding jib structure, the jib is driven by hydraulic cylinders, which ensures the flexibility and stability of the jib system. At the same time, the delicate design of the steering seat and propeller beam bracket enables the top hammer drill machine to drill vertical holes and horizontal holes of 0.3-7.6m in the elevation, and the drilling area in the plane can be up to 17m².
Drilling Rig Selection
Choosing the right top hammer drilling tool is critical to ensuring an efficient and successful drilling operation. First, consider the type of formation you are drilling into and select a drill bit with suitable carbide buttons or chisel blades. Evaluate the required hole size and select the bit accordingly. Consider the depth of the hole and select the appropriate length and diameter of drill pipe. Evaluate the capabilities of the drill rig and ensure compatibility with the selected drilling tool. Consider factors such as tool durability, reliability and ease of maintenance. D Miningwell is one of the professional drilling rig manufacturers, we can provide OEM/ODM, we can customize the top hammer drilling rig for your needs.
