Sany SAC2500S

The Sany SAC2500S is designed as a versatile and powerful all-terrain crane with a maximum lifting capacity of 250 tons. It combines cutting-edge technology with robust engineering to deliver reliable performance across various demanding applications, including construction, energy projects, and industrial installations. The crane’s advanced features, including a sophisticated hydraulic system, ergonomic control, and energy-saving design, make it efficient and easy to operate.

Superstructure Details: The SAC2500S is built around a seven-section U-shaped telescopic boom that extends from a base length of 13.8 meters to a fully extended length of 73 meters. This boom structure, made from high-strength steel, ensures maximum stability and durability during heavy lifts. The crane can be equipped with a jib offering five sections (12.2m, 22m, 29m, 36m, and 43m), allowing it to reach a maximum boom and jib combination of 110 meters. The jib can be set at angles of 0°, 20°, and 40°, providing flexibility for various lifting scenarios.

The hoisting system includes an electric proportional variable motor, offering precise and smooth control over lifting and lowering operations. The main winch is capable of achieving a no-load speed of 130 meters per minute, and the system is designed with three-wrap rope protection to prevent overfall and overwind of the wire rope. The crane also supports efficient self-weight luffing, with the luffing system allowing an angle range from 0° to 82° for optimal positioning.

Carrier and Mobility: The SAC2500S is powered by a Mercedes-Benz OM460LA.E3A engine, which delivers 360 kW (480 HP) at 1800 rpm and a maximum torque of 2200 Nm at 1300 rpm. This engine complies with Euro III emission standards, ensuring efficient and environmentally friendly performance. The crane has a 10×8 wheel configuration and can reach a maximum speed of 80 km/h, providing quick and efficient transport between job sites.

The crane’s steering system offers six different modes, including all-wheel steering and crab steering, which help navigate tight and complex road conditions with a minimum turning radius of 10 meters. The suspension system is highly adjustable, featuring oil-gas suspensions with hydraulic lockout and the ability to raise or lower by 150 mm, ensuring stability across various terrains. The chassis design includes H-shaped telescopic outriggers with a support span of 8.5 meters by 8.3 meters, providing a stable platform during lifting operations.

Hydraulic and Safety Systems: The SAC2500S boasts a high-quality hydraulic system that integrates various components such as a main pump, slew motor, and balance valve to ensure smooth and efficient operations. The closed-loop slewing system includes a buffer valve, enhancing stability during rotation, with a maximum slewing speed of 1.5 rpm. The crane’s hydraulic system uses a dual-pump converging system, providing precise control and efficient energy use.

Safety features are a key part of the SAC2500S’s design. The crane includes a torque limiter system that ensures lifting operations remain within safe parameters, with an accuracy of ±5%. If an overload is detected, the system triggers an alarm and automatically cuts off dangerous operations. Other safety measures include hydraulic locks, overflow valves, and sensors to monitor length, angle, and pressure, preventing operational errors. Anemometers are fitted to detect wind speeds, ensuring safe operation under varying weather conditions.

Control Systems and Operator Comfort: The operator’s cab is designed for maximum comfort and ease of use. It features an ergonomic layout with sliding doors, a panoramic sunroof, adjustable seats, and a touchscreen control interface that displays key operational data. The cabin is equipped with air conditioning, heating, and an electric wiper system, ensuring a comfortable environment in all weather conditions. The control system incorporates a modern CAN bus system, which allows centralized management of crane functions, with an LCD display for real-time monitoring and easy adjustments.

The crane is also equipped with Sany’s GCP (Global Control Platform) system, which provides remote monitoring and diagnostics. This feature helps operators and service teams manage maintenance schedules, track performance, and optimize crane operation, ensuring minimal downtime and high efficiency.

Energy Efficiency and Environmental Considerations: The SAC2500S emphasizes energy-saving capabilities with its dual variable-speed pump and constant power control, which reduce fuel consumption and operational costs. It has a fuel consumption rate of less than 80 liters per 100 km, reflecting its efficient design. The crane’s hydraulic system also features load feedback mechanisms to optimize power usage, contributing to reduced emissions and better environmental performance.

Applications: With its high lifting capacity and extended reach, the SAC2500S is ideal for large construction projects, bridge installations, wind turbine maintenance, and other industrial lifting tasks. The crane can perform efficiently in a wide range of temperatures (-25°C to +40°C) and across various terrains, making it suitable for diverse job sites. Its advanced features, including a robust hydraulic system, versatile boom configurations, and high-precision control, ensure that it can handle complex and heavy lifts with ease.

Additional Features: The crane’s chassis is designed with a sturdy box-shaped structure, offering high strength and durability. The braking system includes air servo brakes, double-circuit hydraulics, and auxiliary engine brakes to ensure safety during transport and operation. The SAC2500S can carry a movable counterweight of up to 80 tons, which can be easily configured for different lifting tasks, further enhancing its versatility.

Overall, the Sany SAC2500S is a comprehensive, high-performance all-terrain crane that combines strength, adaptability, and cutting-edge technology. Its design prioritizes safety, efficiency, and ease of operation, making it a reliable asset for heavy lifting across various industries.