The machine is heat sealing and heat cutting bag making machine, which are suit for printing and non-printing big flat bag making,non stretch at production. The material of bag is HDPE, LDPE film. Which are special design for single line high speed flat bag production. 2 fully servo motors control, independent computers control design and driven by 4.4kw servo motors, Unique pressure maintaining function for thick bag, sealing more firmly, high efficiency, easy and stable operation.