As the key part of the complete flake ice machine, the ice flaker evaporator plays important role in making ice. To match the various Ice flaker evaporators, you can make different choice about the refrigeration units in different refrigerant (R22, R404A or R717) by yourselves before place the order, let me know which refrigerant you’ll choose. The ice flaker evaporator processed from special alloy with lightness and high heat conduction efficient approximating that of Aluminum. Every flake ice scraper processed in special designing without any jointing then in high solidity and can rotate well nearly 8 years. http://www.icesta-icemachine.com