The system consists of an electric control drill bit (standard size hard alloy/diamond drill bit) and a high-precision servo motor that regulates speed and drilling pressure ranging from 0 to 1000 rpm and 0 to 10 kN.
It evaluates rock properties using two primary principles: the Micro Drilling Speed Method, which measures drilling depth (mm/min) under standard parameters, and the Energy Method, which assesses energy consumption via torque and speed parameters.
The equipment is fully compliant with standard guidelines including API RP 10B (petroleum industry testing specification for drilling fluids) and ISO 22476-12 (geotechnical engineering investigation standards).
The standard rock sample sizes supported are side lengths of 100 × 100mm and Φ25 × 80mm. Custom sample specifications are also available upon selection to accommodate different testing needs.
The system integrates a displacement sensor with 0.01 mm precision for depth tracking, a torque sensor for real-time resistance monitoring, and an optional vibration/acoustic emission sensor to study fragmentation features.