• The innovative jib system adopts embedded block, plug-in boom head and octagon jib, which has excellent lifting performance and safe and reliable lifting work. • The unique stretch and retract technique avoids the bend of the core pipe and cylinder and the break of the boom caused by misoperation, improving the safety of the operations. • Eight patent techniques ensure the smooth, high efficiency and energy conservation of the lifting, rotation, and luffing systems. • The torque limiter adopts colorful LCD display, realizing the intelligence of the failure diagnosis. The precision is ahead of the industry. • Adopt the new hydraulic motor with big torque starting point, making the secondary lifting safer. • The humanity design makes the cab and control cab more spacious, and easy to operate. • Six unique manufacturing technologies ensure the high quality. • Extend the lifting space and scope, greatly improving the lifting capacity of the front part.