Sany STC750T Load Chart PDF + Specifications

The Sany STC750T was developed to meet the growing demand for mid-to-large capacity truck cranes capable of handling infrastructure works, industrial installations, bridge construction, and general building projects. Positioned in the 75-ton segment, this model combines structural reinforcement, hydraulic efficiency, and improved mobility to deliver balanced performance across lifting and travel conditions.

The crane is equipped with a six-section telescopic main boom designed with a large cross-section oval profile to enhance torsional rigidity and load-bearing capacity. The boom extends to a maximum length of 56 meters, while the standard lattice jib measures 17.5 meters, with an optional 15.1-meter configuration available. With these configurations, the crane achieves a maximum working radius of 48 meters. The basic boom provides a maximum lifting moment of 3,028 kN·m, while the fully extended boom delivers 1,487 kN·m, reflecting strong performance across varying radii and lifting heights.

The hydraulic system utilizes imported dual-variable piston pumps and a variable displacement winch motor, enabling intelligent flow distribution. The electro-proportional dual-pump flow control system allows independent luffing and synchronized telescoping, improving compound movement smoothness by more than 50 percent. This results in precise control during delicate lifting operations and enhanced operational efficiency on complex job sites.

In terms of hoisting performance, the crane is designed to offer smooth and responsive lifting speeds suitable for both heavy load handling and precise placement tasks. The slewing system ensures stable rotation under load, maintaining operational safety and positioning accuracy.

The carrier adopts a 2.8-meter-wide heavy-duty rectangular-section frame classified as a G-class off-road chassis, providing improved structural strength and stability. The minimum ground clearance reaches 340 mm, enhancing rough terrain adaptability. The crane is equipped with reinforced heavy-duty axles designed for increased load capacity, and the braking torque is improved by approximately 25 percent compared to earlier configurations.

Power is supplied by a Weichai WP9H350E50 diesel engine, compliant with China V emission standards, delivering strong low-speed torque output suited for both road travel and job site maneuvering. The drivetrain incorporates a Fast 10-speed manual transmission, providing efficient power transfer and fuel economy optimization. The crane achieves a maximum gradeability of 45 percent, demonstrating reliable climbing capability under load. It can also travel with up to 22.4 tons of counterweight installed, improving transport flexibility between job sites.

The operator’s cab features a 0°–20° tilting function, allowing improved visibility during high-angle lifting operations. The cabin integrates membrane-type control switches and a six-channel air-conditioning ventilation system, ensuring ergonomic comfort during extended working hours.

Overall, the Sany STC750T represents a robust and well-balanced 75-ton hydraulic truck crane, emphasizing structural strength, efficient hydraulic control, improved driveline performance, and operator-focused design. Its combination of a long six-section boom, advanced flow management system, and reinforced chassis construction makes it suitable for a broad range of lifting applications while maintaining dependable mobility and operational stability.