The Sany 425 and 429 electric dump trucks are both equipped with a mountain version exclusive power chain, equipped with a peak power of 460kW and a large horsepower permanent magnet synchronous motor. The maximum climbing slope can reach 30%, with abundant power and rapid starting, making it easy to cope with complex working conditions in steel mills. The vehicle adopts a 10T+23T reinforced axle and an 8+8+8 three-layer high-strength frame design, combined with a double tail beam structure and a super strong load-bearing balanced suspension. The overall load-bearing capacity is increased by 25%, ensuring stability and durability under heavy load conditions. Both models are equipped with Sany's self-developed VCU intelligent control system, which can accurately adapt to the actual working conditions of steel mills. Datang construction machinery consider to reduce comprehensive energy consumption by 10%. While achieving high efficiency and energy conservation, it significantly reduces operating costs and provides reliable guarantee for green steel production.