Load haul dump machine is designed for 3.8 x 3.8 m mine tunnels. Compared with the original underground LHD, this model has a great improvement in wheelbase and turning radius. Smaller wheelbase and larger turning angles can better adapt to the requirements of different lanes. Better machine stability and a more reasonable cutting edge design can effectively improve production efficiency and the wear resistance and service life of the bucket. The engine cover with gas spring is easy to maintain and maintain the engine. The ZDL307 underground LHD loader is equipped with an independent cab that is easy to remove and replace; it increases the space inside the cab and improves the driver’s comfort.