With Kubota turbocharged engine, XE75DA has sufficient low-speed torque reserve, strong power, good fuel economy, low noise and vibration. Newly optimised second-generation main valve further optimises the handling performance, with good handling of compound action, fast response speed, more precise control and more energy-saving system. Reinforced working device is easily capable of heavy-duty excavation, crushing and other harsh working conditions, and the working life is increased by more than 15%. Standard 0.33m³ bucket capacity, high digging operation efficiency, increase the material used for wear-resistant plate, bucket practical life enhancement of more than 10%. Additionally, it has comfortable operation cab and simple maintenance.