XCMG has displayed the QAY300 during Bauma 2006 that is held in Shanghai, China. It was the largest all-terrain crane manufactured by a China manufacturer back then.

The seven axle crane is capable of a maximum working radius of 86m and a maximum lifting height of 110m. Using a single extending hydraulic cylinder, it extends the oviform boom, held by a pinning system. The 300-tonne crane has five steering axles and four driving axles.