Fecha de publicación: 01/02/2022 Fuente: WIPO "processing tomato" The utility model discloses an air cylinder for sorting tomato fruits, which is mainly applied to sorting unqualified tomato fruits on a tomato harvesting machine or a tomato processing production line. The hydraulic cylinder mainly comprises an end cover, a cylinder body, a spring, an exhaust hole, a sealing ring, a piston and a piston rod, according to the utility model, the end cover on the rod cavity side of the cylinder and the cylinder body are connected through the thread or the snap ring, so that the interior of the cylinder body can be conveniently opened, and easily-damaged parts in the cylinder body can be conveniently maintained or replaced; meanwhile, an exhaust hole is formed in the cylinder body, so that the returning speed of the cylinder is effectively improved, and the working requirement of high-speed sorting is met; the device is simple in structure, low in cost and convenient to manufacture, maintain and use, and has a better popularization prospect.