For people who need the machine to shrink the vacuum shrink bag the hot water shrink tank is your cleaver choice as it simple design and easy maintenance. It become automatic when it link with belt type vacuum packaging machine.
You can also inject steam water and only heat it while get cold for save power reason. The high grade #304 is the excellence material for food industrial and hygienic purpose.
Promarks ST serial shrink tank was design to provide high quality shrink vacuum pack for meat, poultry, cheese and other perishable food products.