1. Safety control system: The two operating modes of working and assembling are convenient and rel iable; the crane has the functions of real-time display of levelness, off-line stop action,emergency electr ic control, lightning protection,automatic traveling direction adjustment,CCTV monitoring, etc., electric and mechanical devices provide safety and reliability; 2. New Design of Hoisting Operating Condition: With 19.5m boom + 7m fixed jib, the crane may be used for hoisting shield machines for metro construction and similar products; it may automatically complete the turnover work of shield machine without an auxiliary crane; and the maximum hoisting capacity of auxiliary hook is up to 80t. The load moment Indicator can dynamically reflect the load of main hook and auxiliary hook; 3. Outstanding operating performance: Load sensing, limit load adjustment and electro-hydraulic proportion dead slow control offer the perfect inching performance of actions, and more stable operation; 4. Reliable function assurance: Famous brand key comonents are adopted , the designed safety margin of structures and members are sufficient;the control system can operate stably under the harsh environments like weather plateau or sand wind; 5. Convenient maintenance technology: t takes approximately no more than 10min/person to adjust ;no more than 30min/per son for dai ly maintenance;no more than 2h/person to repair.GPS remote monitoring system is optional for maintenance and management; 6. Powerful lifting capacity: The maximum lifting capacity of boom is 206.1t×7m=1442.7t·m,the longest boom is 91.5m;the maximum lifting capacity of luffing jib is 54.9t×16m=878.4t·m, the longest boom combination is 61.5m+61m; the heavy-duty fixed jib can turnover objects that are of a weight 80T maximumly; 7. Efficient self assembly and disassembly technology: The whole machine can be assembled and disassembled by itself, and the assembly of basic machine only takes 3h; 8. Large-chassis design: The chassis designed with 6.46m gauge ensures excellent operation stability within 360° slewing range; 9. 100% load travel: Powerful lifting & travelling forces and stability offer 100% load travel; 10. Broad adaptability: Meet certification requirements of CE, North America,Australia, Russia and Taiwan; the engine emission complies with the European and U.S. Non-highway Stage 3 Standards.