A Roll-Bond evaporator is a heat exchanger, which is mainly used in refrigerators and freezers. Its primary function is to remove the heat from the air inside of the fridge or the freezer. Roll-Bond evaporators provide the best results (among competing technologies) in term of energy consumption of the refrigerators. They are mainly used for appliances with the highest energy efficiency classes A++ and A +++ and better.
Roll-Bond evaporator panel is made of two welded aluminium plates, between which a channel system is formed. On the places where we would like to have channels formed, we print on one aluminium plate (inner surface) a picture of channels with a special paste, which prevents bonding of aluminium plates when they are rolled together. After rolling, the channels between the two aluminium plates are inflated by a special inflation process. Evaporator plates are then prepared for further operations.