Film blowing machines are essential tools in the production of plastic films. They use heated pellets and circular dies to extrude them through a die, which creates an expanded tube of molten plastic which is stretched and cooled to form a thin film of plastic that can then be wound onto rolls for further processing or use in various applications such as packaging, agriculture, construction or industrial products.Film blowing machinesmay be operated manually or automatically depending on desired film characteristics and production volume needed.