A core drilling rig is a precision equipment used in geological exploration, mineral development, and engineering surveys to obtain continuous underground core samples. It achieves a rotational speed of 300-1200r/min through a retractable drill pipe and special drill bits (diamond or cemented carbide material), and employs a hydraulic-mechanical composite drive system to generate axial pressure for efficient rock breaking. Core protection technology includes a double-layer core tube and a hydraulic chuck device, maintaining a positive pressure environment of 0.1-0.3MPa during drilling to prevent core fragmentation.

Main technical parameters

1. Core specifications: φ25×120mm, φ38×120mm, etc.
2. Spindle speed: 95～1600r/min
3. Power: 1.1Kw
4. Power supply: 380V
5. Cooling medium: water, kerosene, liquid nitrogen
6. Dimensions: 87×75×182cm
7. Net weight: 278kg