What parameters should be considered when purchasing a core drilling rig?

The selection of a core drilling rig requires a comprehensive consideration of, application scenarios, and ease of operation. The following are key parameters and characteristics to focus on when making a purchase:

1. Drilling Capacity and Hole SpecificationsCore drilling depth and hole diameter are key parameters. For example, the XY-4 rig can reach a maximum drilling depth of 1200 meters when using 42 drill rods, while the XY-1A rig has a rated depth of 100 meters with a final hole diameter of 75mm5. It is necessary to a drilling depth capacity that matches project needs, while also paying attention to the range of borehole diameters (some models support 150mm boreholes) and drill rod (42/50mm, 等。) to ensure compatibility with drill bit types (diamond, carbide, 等。)23.

Core drilling rig

2. Power Configuration Speed Range
The type of power (diesel or electric) directly affects the adaptability of the use scenario. For example, the XY-1A rig can be equipped with 11KW electric motor or a 10.3KW diesel engine, suitable for different power supply conditions. The speed range needs to cover project requirements, with XY-4 rig providing multiple speed options (such as 142-570 RPM), suitable for high-speed drilling with diamond or medium-low speed operations carbide; while the XY-1A rig’s five-speed options (1010-140 RPM) can flexibly cope with complex geological layers5

3. Portability and Structural Design
For operations in mountainous or complex terrain, it is necessary to pay attention to the weight and disassemblability of drilling rig. For example, the XY-4 rig can be disassembled into 9 parts, with the heaviest single piece weighing only 218kg, while XY-1A type weighs about 420-620kg as a whole5. In terms of structural design, it is advisable to choose models with exposed parts easy maintenance, such as the open layout of XY-41, and to ensure the stability of the frame (such as a double-column structure or low-center-ofgravity design).

4. Safety and Auxiliary Functions
Safety features can greatly improve efficiency. For example, the XY-4 rig is equipped with reverse speed instrument monitoring, which is convenient for handling accidents in the hole1; the XY-1A type simplifies operation through hydraulic feed and bottom hole pressure gauge5. In addition, details as the lubrication system (such as grease application in the inner tube3) and automatic feed control (such as a feed speed of 4-5m/min) can reduce the risk of failure.