The high-speed rotation of the impactor inside the hole is achieved by a separate rotating mechanism, namely an electric motor or pneumatic rotating device outside the hole, through a drill rod connected to the rear end of the impactor Its advantages are: meeting the needs of drought resistant irrigation water with minimal power and lowest cost. It is currently one of the most advanced and fast mechanized well drilling equipment, which has been successfully sold both domestically and internationally and has won high praise from a large number of users This product (LQ-200 crawler drilling rig) has a maximum drilling depth of 1000m-2000m, a maximum drilling diameter of 235mm, a drill rod length of 2000mm-3000mm, a maximum power head stroke of 2800mm-3700mm, a drill rod diameter of 89mm, a lifting force of 15T, a turning torque of 5500NM, a bearing method of hydraulic crawler, a walking speed of 2500km/h, a climbing ability of 25 °, an external size of 2600mm * 1300mm * 2050mm, and a total weight of 4600kg