Zoomlion QUY50

The Zoomlion QUY50 is a fully hydraulic crawler crane in the 50-ton capacity class, designed to serve a variety of construction and infrastructure applications. With a maximum lifting capacity of 50 tons at a 3-meter radius, the crane is well-suited for mid-range lifting tasks that require both strength and flexibility.

Its boom system consists of main boom segments ranging from 13 meters up to 52 meters, with optional jib lengths of 9 to 15 meters. The crane’s maximum configuration—a boom and jib combination of 52 + 15 meters—delivers extended reach and height, enhancing its versatility on job sites with complex lifting demands.

The powertrain is driven by a Weichai WD615.338 diesel engine, rated at 132 kW (180 hp) at 2,200 rpm, providing efficient and reliable output for demanding lifting operations. The engine complies with China’s National II emission standards and powers a fully hydraulic system for hoisting, luffing, slewing, and travel functions.

Operationally, the QUY50 features:

• Hoisting speed (main & auxiliary winches): up to 120 m/min
• Boom luffing speed: 60 m/min
• Slewing speed: 0 to 2.0 rpm
• Travel speed: 1.3 km/h
• Gradeability: 30%

The hydraulic system operates through a variable displacement axial piston pump, optimizing energy use by matching output to operational demand. This contributes to smoother crane motions and reduced fuel consumption.

With a ground pressure of 0.067 MPa and an operating weight of approximately 46 tons, the QUY50 offers stable lifting performance even on moderately soft or uneven terrain. The crawler undercarriage is extendable and reinforced, promoting both stability and ease of transport.

The crane’s cab is ergonomically designed with a wide view and equipped with full instrumentation, electronic load moment indicator, and monitoring systems to ensure safe operations. Safety features include automatic stop limits, load torque limiters, and emergency shut-down systems.

In summary, the Zoomlion QUY50 is a compact yet capable crawler crane that combines efficient hydraulic performance, adaptable lifting configurations, and robust safety features. It’s a practical choice for contractors handling diverse lifting challenges on medium-scale construction sites.