The X-ray collimator is equipped with an X-ray machine and a portable high-frequency X-ray machine for the examination and diagnosis of human limbs. It is especially suitable for ambulance diagnosis in mobile places, battlefields, playgrounds and pet clinics. X-ray tube, X-ray collimator and frame. Portable and simple, analog and digital dual-loop control mode, high precision. X-ray collimator, the image is clearer. Newheek manual X-ray collimators are divided into NK102, NK103 and NK202. Generally, the NK103 X-ray collimator device is used in portable X-ray machines.