44m five section U-shaped main arm, single plate arm head, compact arm tail, industry-leading high-frequency operating performance; Low speed high torque power transmission system, with a maximum speed of 80km/h, strong power, and excellent driving experience; Low driving fuel consumption, low operating costs, and more than 12% fuel savings compared to products of the same tonnage in the industry. When lifting, luffing, and extending arms are operated separately, dual pumps converge to supply oil, resulting in efficient operation; When combined, the dual pumps automatically control the flow separation and merging, which can achieve any working condition combination.