Cantilever crane is a small and medium-sized lifting equipment developed in recent years. The rated lifting capacity is 0.25-10 tons, with a unique structure, safety and reliability, and the characteristics of high efficiency, energy saving, time-saving, labor-saving, and flexibility. And it can be operated freely in three-dimensional space, especially in short distance and dense lifting situations, demonstrating unique advantages over other conventional lifting equipment. Widely used in fixed places such as workshops, warehouses, and docks. Huarui mainly produces cantilever cranes including BZD fixed column cantilever crane, BX wall mounted cantilever crane, and BB wall mounted cantilever crane.