The use of mechanical advantage is that it is faster than the speed of manual operation, not only in fact most of our products or its efficiency on handling quality problems, such as vacuum packaging machine, it compared with the manual packing has more rigor, not leaking problem, and produce the phenomenon of package is not tight must be equipment failure problems, what are the reasons?
1, vacuum packing machine is not complete, causing the bag with air residual, cannot form effective negative pressure, don't look tight.

