JDL-5/XJDL-5 mechanical top drive driling rig is a drilling equipment independently developed by the company thatintegrates the functions of water dril and air drll (National lnvention Patent: ZL201510479602.4). 1t adopts 5-speed manual catransmission. wide speed range, sensitive and convenient forward and reverse switching, high transmission efficiency, greathreduced power energy consumption, more efficient and energy-saving. it solves the dificulty of driling with air down-the-holehammers in soil layers and the low construction eficiency of rotary driling rigs in hard rock layers, gravel, and pebble layers.