Selecting a seal machine is not easy. There are many seal machines producing seal bags. The selection must take into account the food, the amount to be preserved, the type of project and the frequency of use. All this helps choose an appropriate seal machine. Seal machines can be divided into two types. The most common type is the sealer with a fixed position seal head. These machines are equipped with a magnetic drive (gear drive) that moves it across the sealing area and back again. The head of this machine is fixed, i.e. you can not adjust the position of the connection point, when connecting the bag, you must hold it in place so that the "kite" on the top surface of the head goes over it correctly.