The paperboard end ring milling machine is suitable for making end ring of big type transformer via processing a board. It mainly mills internal and external circle as well can realize milling arc, straight and skew slot. It also has drilling function.
Paperboard circular shears is used to shear paper boards into circular plates or donuts. Upper and lower shears rotate and shear oppositely. The center press device is as the rotating and shearing center, the distance between blades of shears and center of press device as the radius. The friction force makes the carton board rotate round the center, and then the carton board is processed into circular pates.
