Cantilever crane is a kind of light and small station lifting equipment, the core is based on the principle of lever mechanics, through the rotatable cantilever with the lifting mechanism, to achieve the vertical lifting and horizontal displacement of heavy objects, the main small-range, precise lifting industry, widely used in mechanical processing, warehouse logistics, workshop maintenance, chemical industry and other industries. The cantilever crane has a compact structure, flexible installation, and convenient operation, and does not require large plant supporting facilities, which can effectively replace manual handling, reduce labor intensity, improve operation efficiency, and adapt to fixed-point and high-frequency lifting scenarios, making it an ideal lifting equipment in industrial production.