The sickle arm is mainly used for the whole body digital film inspection, mainly for the X-ray inspection of the chest, head, abdomen, waist, pelvis, limbs and other parts of the human body. Automatic exposure does not require staff to set exposure parameters, and only needs to press the exposure handbrake to complete the exposure operation. For clinical inspection, it is simple and easy to operate, replacing the traditional exposure method and realizing intelligence. The sickle arm is now mainly used in teaching and research activities in hospitals, research institutes and schools. The price is varied, the price of different brands and models is different, the same model of different brands will not be much different, and the prices are comparable. Generally speaking, the price is basically more than 100,000, and common hospitals buy sickle arms of 140,000 to 50,000.