XGC28000 crawler crane is a huge tonnage product developed by our company to meet the market demand and actively participate in the international competition. The machine draws advanced techniques at home and abroad, and applies advanced design methods, featuring structure design opti mization and excellent hoisting performance. It adopts the split crawler chassis and the truss jib with many combinations, which has small ground pressure, large lifting height, high lifting performance, and can travel with load. The tower jib can work near to the constructions. The super-lift device with the variable super-lift counterweight radius can supply strong lifting performance and flexibility. The program control system ensures the safe working of the crane. Dual engine and dual closed pump-control variable hydraulic system and the electronic proportional operation are energy efficient and control precisely. The electronic control parts, power parts, and drive parts of the international famous enterprises are environmental friendly and reliable.