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旋挖钻机动力头一般使用专用电机或液压马达驱动减速器,减速增扭后驱动钻杆工作。近来用户使用A6V250马达(力源生产)驱动动力头
Rotary drilling rig power head generally use a dedicated motor or hydraulic motor drive reducer, after the deceleration by driving the drill pipe work. Recently, users use the A6V250 motor (Liyuan production) to drive the power head