jib crane is a small and medium-sized lifting equipment developed in recent years. It has a unique structure, is safe and reliable, and has the characteristics of high efficiency, energy saving, time saving, flexibility and flexibility. It can be operated freely in three-dimensional space, in the case of segment distance and dense transportation. Other conventional lifting equipment shows its superiority. This product is widely used in different places in various industries. The working strength of the jib crane is light, and the crane is supported by the column.