· AOCT self-optimizing control technology is adopted to optimize the hydraulic spool and increase the main pump displacement to achieve fuel economy.

· Much more convenient maintenance operation, durable oil and filters to reach longer maintenance period and 50% less expense.

· Reinforced structural parts cope with complex working conditions, multi-stage reinforced fuel filter system copes with inferior oil products, high-efficiency heat dissipation cooling system, hydraulic pulse absorber.

· Through experience accumulation of 15 years, the operating life is more than 15,000H under mining working condition.