The SANY STC550T truck crane is a top - tier construction machinery. Powered by a Weichai WP10.375E53 (National Ⅴ) engine with 276 kW power, it ensures strong performance. With a rated total lifting capacity of 55,000 kg, it suits diverse heavy - load tasks. Its longitudinal outrigger span is 6.13 m and transverse is 7.4 m, guaranteeing stability. The basic boom can reach a maximum lifting height of 62.5 m, and the maximum single - rope speed of the winch is 145 m/min for efficient operation. It travels at a top speed of 90 km/h, with a 47% maximum gradientability, adapting well to different terrains. The user - friendly cab and advanced control system make operation easy. Ideal for construction sites, it brings high - quality lifting solutions.