Lock former machine also known as reel bone machine, bite sewing machine, bite edge machine, duct bite mouth machine, wind tube reel bone machine. Is a versatile model that is mainly used for the processing of seams for the connection of plates and round ducts. Duct to meet the manufacture of a variety of different shapes of bone. Processing plate thickness of 0.4-1.2mm. All the gears, shafts and rollers of the machine are made of high quality steel. After strict heat treatment process, the machines are durable and stable in quality. They are easy to install, attractive in appearance, reasonable in mechanics, flexible in movement and convenient in operation. Different requirements. Biting machine for ventilation, air conditioning, cleaning and other devices duct production, according to requirements, can be made into a variety of square, rectangular sheet duct, is a variety of sheet metal processing, duct production and other indispensable mechanized equipment.