Sany STC250E5 Load Chart PDF + Specifications

The Sany STC250E5 was developed to strengthen Sany’s presence in the 25-ton truck crane segment, focusing on structural reliability, lifting efficiency, and transport flexibility. Designed primarily for municipal engineering, building construction, power line installation, and general industrial works, this model integrates a compact carrier chassis with a long five-section telescopic boom for enhanced working range.

The crane features a large cross-section U-shaped telescopic boom constructed from high-strength structural steel to improve torsional rigidity and bending resistance. The five-section boom extends to a maximum length of 40.5 meters. This boom configuration enables a maximum lifting capacity of 6.5 tons at full extension. The maximum lifting moment on the basic boom reaches 1,063 kN·m, ensuring strong performance within its rated capacity class.

A 6.3-ton counterweight package enhances stability during lifting operations, allowing secure 360-degree working conditions when the outriggers are fully deployed. The optimized boom section overlap design improves load transfer efficiency while maintaining structural durability.

The hydraulic system adopts a dual variable displacement pump combined with a fixed displacement motor arrangement. This configuration ensures efficient hydraulic flow management and stable system performance. The electro-hydraulic control system allows smooth and precise lifting, luffing, telescoping, and slewing operations. The hydraulic layout emphasizes high efficiency and reliability, contributing to reduced energy loss during compound movements.

The carrier adopts a G-class heavy-duty chassis structure designed for improved torsional strength and load-bearing capacity. The suspension system combines durability with ride comfort, supporting steel tires for enhanced load support. The crane’s drivetrain configuration provides reliable mobility across both urban roads and jobsite conditions.

Power is supplied by a Weichai WP7.300E51 inline diesel engine compliant with China V emission standards. This engine delivers strong torque characteristics suited for both road travel and construction site maneuvering. It is matched with a Fast 9JS119T-B 9-speed manual transmission with synchronizers, ensuring smooth gear shifting and efficient power transfer. The crane achieves a maximum travel speed of 90 km/h and a maximum gradeability of 45 percent, supporting efficient relocation between job sites.

The intelligent energy-saving system offers selectable operating modes, including energy-saving and power modes, optimizing fuel consumption according to working conditions. This system contributes to reduced fuel consumption during typical lifting operations.

The operator’s cab is ergonomically designed with intuitive control layout and clear instrumentation. Integrated safety systems include load moment limiting, boom length and angle sensors, hydraulic pressure monitoring, and over-hoist protection devices to ensure operational safety.

Overall, the Sany STC250E5 combines a 40.5-meter five-section boom, 1,063 kN·m lifting moment, 6.3-ton counterweight, and a 300-horsepower-class powertrain into a compact yet capable 25-ton hydraulic truck crane. Its balance of lifting reach, structural strength, and transport performance makes it suitable for a wide range of light-to-medium duty lifting applications.