About the Refrigeration System : The sea water flake ice machine uses a refrigeration system to cool the evaporator. Common refrigerants are environmental friendly gas, R404a, or R507a. or others depending on the design and intended use of the machine. flake ice machines commercial supplier, Square Clear Ice Maker, Big Ice Block Maker, Hollow Ice Cube Maker,Oylus Ice Maker. Block Ice: Large blocks of ice that can be crushed for cooling or ice carving. The product will supply to all over the world, such as Europe, America, Australia,Madras, Finland,Qatar, Sudan.Type of ice available in OMT ICE which produces by our ice makers: cube ice, tube ice, flake ice and crushed ice, ice block, slurry ice, bag ice etc. IN OMT ICE, we make a range of ice makers, such as: