This machine adopts contact roller type heater, heating is uniform and reliable. After forming the bubble wall is thick, so the requirements the same bubble wall thickness conditions can be used PVC films thinner, which can reduce the packaging cost. This machine is used to move the clutch manual control heat sealing roller, which can save the teaching complex pneumatic system, compact structure, is of similar models in the lowest price, the highest reliability of a packaging machine. The machine also trial and light industry, food, electronic industry and other sealing packing.