Sany SCC550C Load Chart PDF + Specifications

The Sany SCC550C is a conventional lattice-boom crawler crane developed to provide a versatile lifting solution for civil engineering projects, precast concrete installation, industrial construction, bridge works, and plant maintenance operations. Designed with an emphasis on transportability, ease of assembly, and operational efficiency, the crane offers a maximum rated lifting capacity of 55 tonnes and a maximum lifting moment of 203.5 tonne-metres, making it suitable for medium-duty lifting tasks across a broad range of jobsite conditions.

The crane is equipped with a main boom system that can be configured from 13 metres to 52 metres using modular lattice boom sections. This allows operators to optimize the boom length according to site requirements while maintaining good lifting performance throughout the operating range. The boom operating angle ranges from 30° to 80°, providing flexibility for both high-lift and long-reach applications. At its shortest 13 m boom configuration, the SCC550C achieves its maximum rated lifting capacity of 55 tonnes.

For applications requiring additional reach, the SCC550C can be fitted with a fixed jib. The fixed jib is available in lengths from 6.1 m to 15.25 m, and can be installed on main boom lengths ranging from 22 m to 43 m. Operators can select jib offset angles of 10° or 30°, allowing the crane to perform lifting operations over obstacles and in confined working areas. The maximum combined boom and jib configuration reaches 43 m of main boom plus 15.25 m of fixed jib, extending the crane’s working envelope significantly.

Power is supplied by a diesel engine rated at 153 kW at 2,100 rpm, providing sufficient output for lifting, slewing, travel, and auxiliary hydraulic functions. The hydraulic system is designed to deliver smooth operation and responsive control, ensuring stable lifting performance and efficient power distribution across all crane functions.

The hoisting system consists of independently driven main and auxiliary winches. Both the main and auxiliary hoists offer a maximum rope speed of 110 m/min and utilize 20 mm diameter wire ropes. The main hoist is supplied with 180 m of rope, while the auxiliary hoist carries 130 m of rope. The rated single-line pull is 6.5 tonnes, enabling efficient handling of loads across the crane’s operating range.

Boom luffing is accomplished through a dedicated hydraulic luffing mechanism utilizing 16 mm wire rope. The luffing system achieves a maximum rope speed of 62 m/min and provides a rated single-line pull of 3.7 tonnes, allowing precise boom positioning and smooth operation during lifting tasks.

The upperstructure slews through a hydraulic drive system, while the crawler undercarriage provides excellent stability and maneuverability on uneven ground. Maximum travel speed is 1.39 km/h, and the crane exerts a low average ground pressure of only 0.063 MPa, allowing operation on relatively soft ground conditions without excessive soil compaction.

Transportability was an important design objective for the SCC550C. The maximum transport unit weighs approximately 29.5 tonnes and measures 7,160 mm long, 3,360 mm wide, and 3,260 mm high, allowing relatively straightforward transportation between jobsites. The crane utilizes modular counterweight blocks and boom sections that can be transported separately for efficient assembly and disassembly.

Safety systems integrated into the SCC550C include a load moment limiter, hoist protection systems, boom angle monitoring, hydraulic safety devices, and operational monitoring functions designed to assist operators during lifting operations. Combined with Sany’s hydraulic control technology and robust lattice boom design, these features contribute to reliable operation and improved lifting safety on site.

With its 55-tonne lifting capacity, 52-metre main boom, 15.25-metre fixed jib, efficient hydraulic system, and compact transport dimensions, the Sany SCC550C remains a practical and versatile crawler crane suited to a wide range of construction and industrial lifting applications.