Sany STC3000C8-8

The Sany STC3000C8-8 is a powerful 300-ton hydraulic truck crane built to handle demanding lifting tasks across various industries, including construction, industrial maintenance, and infrastructure projects. With a six-axle chassis, this crane combines superior lifting capacity with enhanced mobility, making it an ideal choice for jobs requiring both strength and flexibility.

The crane measures 17,510 mm in length, 3,000 mm in width, and 4,000 mm in height, providing a compact yet sturdy structure that ensures stability during operation. The total weight of the crane is 58,000 kg, distributed across its six axles, with a load distribution of 22,000 kg on the first two axles and 36,000 kg on the remaining four axles, ensuring balanced load management during both transport and operation.

The STC3000C8-8 is equipped with a five-section main boom that extends from a base length of 15.1 meters up to 90 meters. For tasks that require additional reach, the crane can be fitted with a jib extension, bringing the maximum lifting height to 120.5 meters, allowing it to handle high-altitude lifts and complex lifting scenarios. The crane’s lifting performance is exceptional, with a maximum lifting moment of 7,355.8 kN·m using the main boom and 3,535.8 kN·m with the maximum boom plus jib configuration.

The crane is powered by two engines: the superstructure is driven by a Dongkang QSB5.9C54 220C engine, delivering 154 kW (208 HP) at 2200 rpm and a torque of 820 Nm at 1600 rpm. The chassis is powered by a Weichai WP12.460E62 engine, producing 338 kW (460 HP) at 1900 rpm and a torque of 2200 Nm at 1000-1400 rpm, providing strong propulsion and reliable performance across various terrains. This powertrain allows the crane to reach a maximum travel speed of 85 km/h, with a minimum turning radius of 11.75 meters, making it agile enough to maneuver through tight job sites.

The STC3000C8-8 has a versatile drive configuration (12x6x8), providing driven and steerable axles that enhance maneuverability. The crane’s suspension system features independent hydraulic lockout capabilities, ensuring stable and smooth operation during transport and lifting. With a maximum gradeability of 45%, the crane can handle steep inclines with ease, further enhancing its adaptability to various working environments.

The crane’s hydraulic system is designed for precision and efficiency, featuring multi-variable control mechanisms that allow for smooth and coordinated operations. The main winch achieves a maximum hoisting speed of 135 m/min, while the crane’s boom can be extended or retracted between 15.1 meters and 90 meters in approximately 960 seconds (full extension) and 800 seconds (retraction). The boom luffing angle ranges from 0° to 75°, providing flexibility in positioning for different types of lifts.

The Sany STC3000C8-8 is equipped with a sophisticated control system that includes advanced safety features, such as electronic load moment indicators, pressure relief systems, and hydraulic locks. These systems provide real-time monitoring of load weights, boom angles, and operational parameters, ensuring safety and stability during lifting tasks. The crane also has multiple hook blocks, including an 8-sheave configuration capable of handling 310 kg and a 5-sheave configuration supporting up to 735 kg, allowing for versatility in lifting different types of loads.

Operator comfort and control are prioritized in the design of the cab, which features ergonomic seating, intuitive joystick controls, and a comprehensive display panel that provides all necessary operational data. The cab is equipped with large, clear windows for improved visibility, as well as climate control features, including heating and air conditioning, to ensure a comfortable working environment throughout long shifts.

In terms of outrigger configuration, the crane offers a wide stance of 8.35 meters longitudinally and 7.7 meters laterally, providing a solid and stable base for heavy lifting tasks. The crane’s support legs are hydraulically controlled, allowing for easy setup and adjustment on various job sites, including uneven terrains.

The STC3000C8-8’s efficiency is further enhanced by its modular design, which simplifies transport and setup. The crane’s counterweights, totaling up to 58 tons, can be assembled and disassembled quickly, facilitating fast deployment on new job sites. Additionally, the crane’s optional accessories, including extended jibs, additional counterweights, and specialized hooks, provide further customization to meet specific project requirements.

Overall, the Sany STC3000C8-8 combines robust lifting power, advanced hydraulic technology, and flexible configurations to deliver a reliable and efficient solution for complex lifting projects. Its strong performance, versatility, and ease of operation make it an excellent choice for contractors and operators working on large-scale construction and industrial projects where power and precision are key.