Abstract

Portable drills used in mines are heavy, generate noise levels exceeding standards, and expose drill operators to vibration. Many of these problems could be resolved by the use of a hydraulic long-bore mini-drill.

This study measured noise and vibration levels, penetration, and operating conditions during field trials of a hydraulic drill of this type. The impact of the introduction of this new equipment on operators' working conditions and the economics of its introduction were analyzed.

The introduction of a high-performance and safer drill will lead to safer worker conditions in the mining sector.