Hitachi-Sumitomo SCX550-3

Crawler Crane

Sumitomo Heavy Industries Construction Cranes Co., Ltd. (HSC) has launched the 55-tonne SCX550-3 hydraulic crawler crane in November 2019. The SCX550-3 is developed based on the concept of “SCX-3 series” while keeping the superior working performance as a conventional machine. The new model is equipped with a cleaner running engine that meets EU stage Ⅳ exhaust emission regulations.

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Product Description

The Hitachi-Sumitomo SCX550-3 is a versatile 55-ton crawler crane optimized for medium-scale lifting tasks, with configurations suitable for liftcrane and clamshell applications. The crane’s design includes a basic boom length of 10 meters, extendable up to 49 meters, offering flexibility for various lifting operations. For additional reach, a crane jib can be fitted, ranging from 6 to 15 meters in length, resulting in a maximum boom and jib combination of 64 meters (49 meters + 15 meters).

The crane’s winch system features adjustable rope line speeds, with the front and rear main drums operating at 110 meters per minute for high-speed lifting and 53 meters per minute under lower load conditions. The boom hoist drum speed is set at 60 meters per minute, enabling efficient adjustments for lifting and positioning. In clamshell mode, the crane supports a bucket capacity of 0.8 to 1.2 cubic meters, with a maximum digging depth of 36 meters, making it suitable for excavation tasks.

The SCX550-3 is powered by a Hino J05E-UN engine, compliant with Stage IV emission standards, delivering a maximum output of 138 kW (188 PS) at 2,100 rpm. This engine ensures reliable power for lifting operations while meeting modern environmental regulations. The crane’s hydraulic system provides smooth and efficient operation across various tasks.

The crane features a swing speed of 4.2 rpm, allowing for precise and quick rotational movements during operation. Its travel speed ranges from 2.0 km/h in high mode to 1.5 km/h in low mode, providing suitable maneuverability across job sites. The SCX550-3 has a gradeability of 40%, enabling it to handle slopes and uneven terrain with stability.

Ground contact pressure varies depending on the configuration: approximately 73.1 kPa when equipped with the basic boom and a 55-ton hook block, and about 75.1 kPa when configured for clamshell operations with a 1.2 m³ bucket. The crane’s operating weight is roughly 53.4 tons in liftcrane mode and 54.8 tons in clamshell mode, ensuring a stable platform for various lifting and digging tasks.

Overall, the Hitachi-Sumitomo SCX550-3 offers a reliable and adaptable lifting solution for construction, industrial, and excavation projects. Its flexible boom configurations, efficient engine, and advanced safety features make it a practical choice for medium-duty lifting operations.