The Hitachi 670 is equipped with a revolutionary kaiyuanzhichuang rock arm, opening a new era of digging.
Kaiyuan Rock Arm, as a multi-purpose modified arm, is suitable for mining without blasting, such as open-pit coal mines, aluminum mines, phosphate mines, sand gold mines, quartz mines, etc. It is also suitable for rock excavation encountered in basic construction such as road construction and basement excavation, such as hard clay, weathered rock, shale, rock, soft limestone, sandstone, etc. It has good effects, high equipment strength, low failure rate, high energy efficiency compared to breaking hammers, and low noise. Rock Arm is the first choice for equipment without blasting conditions.