Sany STC300S

The Sany STC300S is a high-performance 30-ton capacity hydraulic truck crane, engineered for exceptional versatility, reliability, and safety in heavy lifting tasks. Combining cutting-edge technology in its superstructure and chassis, the STC300S is a suitable choice for construction, infrastructure, and industrial applications.

Superstructure Highlights:

The Sany STC300S is equipped with a five-section telescopic boom constructed from high-strength U-shaped steel sections. The boom’s base length is 10.6m, with a fully extended length of 40.5m. When combined with the auxiliary jib, it achieves a maximum lifting height of 48.5m, providing an impressive reach for a wide range of lifting scenarios. The boom’s telescopic operation is powered by a dual-cylinder rope mechanism, ensuring smooth and precise deployment.

The luffing system offers angles between 2° and 80°, ensuring flexible lifting operations at various heights. The crane’s hydraulic system incorporates high-quality components, such as a variable motor-driven winch that achieves single-line speeds of up to 130m/min, optimizing operational efficiency.

Safety is paramount, and the STC300S is equipped with a load moment limiter that provides ±3% accuracy in real-time monitoring to ensure safe lifting operations. The system automatically alerts the operator in case of overload or improper lifting conditions. Additionally, the slewing system offers 360° continuous rotation at a maximum speed of 2.5 rpm, allowing precise positioning of loads. A 4500 kg counterweight further enhances the crane’s stability during operations.

The operator’s cab is designed for comfort and functionality, featuring safety glass, a panoramic view, adjustable seats, and an integrated CAN-bus control system. Real-time data monitoring, fault warnings, and troubleshooting are easily accessible, enhancing operational efficiency.

Chassis and Mobility:

The Sany STC300S is mounted on a three-axle chassis, with one steering axle and two drive axles. This layout, combined with a plate spring suspension system tested for durability and fatigue, ensures smooth travel and robust performance on various terrains. The crane is equipped with H-shaped outriggers, fabricated from high-strength steel, providing superior stability and support during lifting operations.

Powering the crane is a 213 kW inline six-cylinder, water-cooled, supercharged diesel engine, compliant with Euro III emission standards. The engine provides ample power for both traveling and crane operations. The crane’s transmission features a nine-speed manual gearbox, offering flexibility for high-speed travel (up to 100 km/h) and low-gradeability for rough terrain.

Additional Features and Safety Systems:

The Sany STC300S employs air-serve brakes with a dual-circuit system and exhaust braking for reliable stopping power. Its steering system uses hydraulic power assistance for enhanced control, while the 11 radial tires (12.00R20-20PR) deliver optimal load-bearing capacity and durability. The crane also features a robust electrical system with dual 12V maintenance-free batteries and a master power switch for ease of operation.

Advanced safety systems, including hoisting and anti-rollback limiters, prevent wire rope mismanagement and over-hoisting. Pressure sensors and real-time monitoring instruments further ensure safe and precise operations, while the ergonomic cab enhances operator comfort and focus.

The Sany STC300S is an ideal choice for projects requiring a compact yet powerful crane with excellent reach, efficiency, and safety features. Its combination of advanced design and dependable performance makes it a standout in its class.