★ Adopting hydraulic torque converter form, fully hydraulic steering, light and effortless steering, small turning radius; ★ Dual directional driving, continuously variable transmission, easy to operate; ★ Strengthen the design of front and rear traction, which can be used as both a transport vehicle and a towing vehicle; ★ The rear load-bearing frame ensures that it has sufficient strength and deformation resistance; The operating transmission system is hydraulic mechanical transmission, with power shifting, good traction, strong climbing ability, and good passing performance; The whole vehicle adopts steel plate spring suspension, with good shock absorption performance. After chassis modification, it can meet the requirements of bi-directional driving for one-way tunneling and channel transportation, and is also suitable for other mining and tunnel engineering environments.