SOUTH AFRICA FILM BLOWING MACHINE

understanding of the key manufacturing process- the film blowing.the tube causing longitudinal elongation in the machine direction (MD); this is known.Leading Manufacturer of High Quality Paper Bag Machines in China, Inquiry Now!24-hour online service · Global Customer Base · Guaranteeing stable · Minimum Lead Time?Plastic melt is extruded through an annular slit die, vertically to form thin walled tube ? Air is introduced in the centre of the die to blow up the tube like a balloon (IBC) ? Air ring blows onto the hot film to cool it (outside and inside the tube) ?