The five section 45m U-shaped main arm adopts dual pump split flow control technology, with precise lifting and smooth operation. It integrates three energy-saving measures: a new energy-saving hydraulic system, a low-speed high torque power system, and engine ECO mode control. The average fuel consumption under comprehensive operating conditions is 20% lower than that in the industry; The front axle adopts disc brakes, which have good heat resistance and wear resistance, stable braking on long slopes, and strong adaptability in mountainous areas.