XCMG XCA4000

The XCMG XCA4000 represents the flagship of XCMG’s ultra-heavy all-terrain crane lineup and is designed specifically for large-scale wind energy installation and heavy industrial lifting applications. With a maximum rated lifting capacity of 4,000 tonnes, the crane is among the most powerful mobile cranes ever developed, capable of handling extremely heavy loads and lifting large wind turbine components at significant heights.

The crane features a six-section telescopic boom constructed using a U-shaped high-strength steel design to provide optimal rigidity and lifting performance. The boom has a length range of approximately 22.5 m to 86 m, allowing the crane to perform both heavy lifting at short radii and extended reach operations. For wind turbine installation tasks, the crane can be equipped with specialised wind power boom extensions available in lengths of 50 m, 60 m, 70 m, 80 m, 90 m, 100 m, and 110 m, enabling the crane to reach the heights required for modern large-scale wind turbines.

To further enhance lifting capacity at large radii, the XCA4000 incorporates an advanced superlift counterweight system. The crane uses a modular counterweight arrangement consisting of multiple components including a 20-tonne counterweight frame, a 10-tonne hanging counterweight basket, and an additional 10-tonne counterweight block, allowing the crane to adapt its lifting performance according to specific project requirements.

The crane is mounted on a massive 11-axle all-terrain carrier chassis, designed and manufactured by XCMG using high-strength structural steel. The chassis uses a box-type frame structure with removable support sections, providing both structural rigidity and modular transport capability. The vehicle is equipped with 505/95R25 heavy-duty tyres, ensuring adequate load distribution and road mobility despite the crane’s massive size.

Power is supplied by a Weichai WP17G770E304 diesel engine, a V-type eight-cylinder turbocharged and intercooled engine delivering 566 kW of rated power at 1,900–2,100 rpm, with a maximum torque of approximately 3,000 Nm. The engine meets China Stage III emission standards and is paired with a ZF electronically controlled transmission offering 12 forward gears and 2 reverse gears, enabling smooth travel performance and efficient power delivery.

The carrier chassis uses an independent heavy-duty suspension system with oil–gas suspension across all axles, providing excellent ride comfort and load distribution. The suspension system includes functions such as automatic leveling, suspension height adjustment, and axle lifting, improving the crane’s mobility both on-road and on construction sites.

For stability during lifting operations, the crane uses an X-shaped outrigger configuration with four-point support. When fully extended, the outriggers provide a support base measuring approximately 15,000 mm × 15,000 mm, ensuring a stable lifting platform for ultra-heavy loads.

The crane’s hydraulic system uses electro-proportional variable displacement pumps, enabling smooth and precise control of crane movements including lifting, telescoping, and slewing operations. The slewing system uses a three-row roller external gear slewing ring, allowing 360-degree continuous rotation with adjustable speed control.

The operator cab is designed for safety and comfort, featuring ergonomic controls, large safety glass windows, and protective guard structures. The cab can rotate relative to the superstructure to improve operator visibility during lifting operations. A large display system provides operational data and crane status information.

Safety is supported through a comprehensive range of systems including hydraulic balance valves, relief valves, double hydraulic locks, load moment limiters, anti-two-block devices, and wind speed sensors. The crane also includes an overload protection system with audible and visual alarms, as well as a data recording system (“black box”) and fault self-diagnosis functions.

Overall, the XCMG XCA4000 is engineered as an ultra-heavy lifting solution for the wind energy industry and major infrastructure projects. Its combination of 4,000-tonne lifting capacity, long wind power boom configurations, powerful multi-axle carrier, and advanced hydraulic and electronic control systems makes it one of the most capable mobile cranes currently available for large wind turbine installation, heavy industrial assembly, and large-scale energy construction projects.