The SMC-DTH-670 Small Integrated Surface Hydraulic Down-the-Hole Drilling Rig is a compact and efficient solution designed for small to medium-sized mines, quarries, and municipal engineering projects. Featuring a two-stage screw air compressor, it supports a drilling hole range of 115–152 mm. Equipped with a hydraulic motor and chain propulsion system, it delivers stable power and reliable performance. Compared to larger DTH rigs, the SMC-DTH-670 offers greater flexibility, easier maintenance, and lower capital investment, making it ideal for operations requiring mobility and cost-efficiency.