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. Big Square Ice Cube Maker, Commercial Ice Flake Machine, Best Ice Cube Making Machine, Big Block Ice Machine,Ice Maker Making Large Block Of Ice. 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,Cancun, Sri Lanka,Israel, Mombasa.2. tube ice machine: it makes cylinder type transparent ice with a hole in the middle, or solid type cylinder ice. Capacity up to 50,000kg per day