It is equipped with Isuzu 6HK1X engine with 210kW power and strong power to help customers solve problems under heavy load conditions. The main pump displacement is upgraded to 180cc, and the overall action is faster. The flow capacity of the big diameter main valve reduces the pressure loss and improves the energy efficiency. Part of the exhaust gas circulates into the intake system, mixes with fresh air and burns, inhibits the generation of Nox, EGR is upgraded from tubular type to laminated type, and cooling is faster. Using the "positive flow" system and SANY self-developed "DMOS" engine pump valve integrated dynamic optimization intelligent control system, to achieve 40 tons of efficiency, 30 tons of fuel consumption. The bucket teeth are upgraded to 4 pointed bucket teeth, the front blade is thickened to 60mm, and the service life of the bucket is extended. It can be configured with 4 kinds of series buckets to meet the "one situation one bucket", improve construction efficiency and easily cope with a variety of complex working conditions, improve product value and customer profitability.