Recently, QTD400 intelligent boom type tower crane has successfully passed the type test. QTD400 is the key technological research programme of Jianglu. Its intelligent control and management system improves safety and achieves trouble self-diagnosis, operating parameters display, automatic data storage and reading, GPS satellite positioning, remote monitoring, and intelligent anti-collision. With core technological competitiveness, it leads the development trends of the control system of tower crane.

Jianglu Electromechanical Science & Technology Co., Ltd.（the company）is established through the transformation of Jianglu Machinery Plant and Hunan Jianglu Machinery Group Co., Ltd. The company is a state-owned first-class key enterprise affiliated to China North Industries Group Corporation. The military product of the company has three main categories: special vehicle, comprehensive drive system, and matched electrical device, and the main products have participated in the military parade of the 50th anniversary of China. The civil product mainly has four categories: construction machinery, transmission machinery, environmental-protection machinery, and metallurgical machinery, the main products include 15 series, such as tower crane, construction elevator, concrete pump, vibratory roller, compact hydraulic excavator, gantry crane, skid steer loader, forest fire-prevention vehicle, automobile automatic continuously variable transmission(CVT), MW-level wind turbine variable pitch and yaw system, hydraulic components, refuse compactor, desert vegetation building machine, full automatic powder press machine, and nonstandard metallurgy equipment.