Reliable and durable: heavy-duty frame, mature fixed-shaft transmission system, heavy-duty working condition overhaul period extended year-on-year Efficient operation: high and low speed combined operation combined with high-position automatic leveling work device, shovel loading efficiency is greatly improved Economical and energy-saving: excellent speed engine, large displacement double pump combined hydraulic system, high efficiency and energy saving Comfortable operation: moulded panoramic cab, pilot handle, large seat, low noise