The x ray collimator for 150KV tube is a larger beam limiter, and there is also a beam limiter for 125KV spherical tube. The beam limiter for 150KV spherical tube is often used in fixed X-ray machine. The beam limiter for 150KV tube has large volume, heavy weight and high performance.
There are three types of manual beam limiters. In addition to NK202, there are two types of beam limiter for 150KV tube. They are NK102 and NK103. Mobile X-ray machines can use NK102. Portable X-ray machines can use NK103. The beam limiter for 150 KV spherical tubes is NK202.
At present, Newheek is not only a manual beam limiter, but also an electric beam limiter, which is a type of beam limiter controlled by electric remote control.