LQ-400 track type wells rig by Rotary institutions, and lifting institutions, and push pressure institutions, and supports institutions and impact institutions, part composition. concentrated has variety with type mechanical of advantages, to reached efficiency high, and easy decomposition, and weight light, and easy transfer of work need, with with excellent of quality, through has number years of glory years. this paragraph products (LQ-400 track type wells rig) of main technology parameter following, maximum open hole depth: 400m, drilling diameter maximum 300mm, 2000mm-3000mm drill pipe length, power stroke 4600mm, drill diameter 89mm/108mm/114mm, lift 30T, Rotary torque 10000NM, carrying mode: hydraulic crawler, walking speed 3000km/h, climbing capacity is 30 °, dimensions 3550mm*1600mm*2550mm, weight 8000kg.