The high-speed rejection checkweiger series is a high-speed, accurate, automatic online weight inspection device that is used to check whether the weight of the product on the conveyor belt meets the set target weight, and can automatically reject products that are light or overweight. At the same time, the human-machine interface of the online automatic conveyor check weigher fully displays information such as quantity, speed, weight, and product information. The machine is used for packaging inspection to achieve full inspection of products before leaving the factory, while also achieving the effect of saving labor.