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Sisal automatic decorticator is a new type of fiber extraction equipment, including two units of belt conveyors, a unit of arraying machine, a unit of two side drum extraction main machine, and a unit of fiber pressing machine which can achieve automatic feeding, fiber extraction, and washing and dehydration effects. This set of equipment has low labor intensity, high production efficiency, low production cost, and good fiber cleanliness. It is an ideal production equipment for fiber processing plants.