Sany STC700T Load Chart PDF + Specifications

The Sany STC700T was developed as a high-performance 70-ton class hydraulic truck crane targeting infrastructure construction, industrial installation, and municipal engineering applications. The crane integrates a reinforced telescopic boom structure with optimized hydraulic control to ensure stable lifting across various working radii.

The telescopic boom adopts a large cross-section U-shaped profile fabricated from high-strength structural steel to enhance torsional rigidity and overall structural durability. The main boom extends to a maximum length of 49.5 meters when fully deployed. When equipped with the 17.5-meter lattice jib, the crane significantly increases its operational reach and lifting height, making it suitable for elevated structural assembly and equipment installation. The maximum working radius reaches 42 meters, allowing effective coverage for medium-rise construction and plant maintenance operations.

In terms of lifting capacity, the STC700T delivers a maximum lifting moment of 2,916 kN·m on the basic boom configuration. When the boom is fully extended, the maximum lifting moment is rated at 1,676 kN·m. This balance between base stability and extended reach performance ensures reliable lifting strength throughout the working envelope.

The hydraulic system is engineered with electro-proportional control to provide smooth and precise actuation of lifting, telescoping, and slewing functions. The slewing mechanism enables continuous 360-degree rotation, ensuring stable positioning under load. Hoisting systems are designed to deliver efficient lifting speeds while maintaining controlled descent for safe load handling.

The crane is mounted on a heavy-duty multi-axle truck carrier chassis engineered for both road travel and jobsite maneuverability. The reinforced frame structure improves bending and torsional resistance, while multiple steering axles enhance turning performance in confined urban environments. The powertrain consists of a high-torque diesel engine compliant with prevailing emission standards, paired with a multi-speed transmission optimized for fuel efficiency and gradeability.

Outriggers provide wide support spans to ensure stability during 360-degree lifting operations. Safety systems include a load moment limiter, boom length and angle sensors, over-hoist protection devices, and hydraulic pressure monitoring to maintain safe operating conditions.

Overall, the Sany STC700T offers a refined combination of structural strength, 49.5-meter main boom reach, 17.5-meter jib extension, and strong lifting moments of 2,916 kN·m and 1,676 kN·m. These characteristics position it as a capable and balanced 70-ton hydraulic truck crane suitable for a wide range of construction and industrial lifting tasks.