When the ice reaches the required thickness (which can be freely selected by the operator/user), the hot air discharged by the compressor is redirected back into the ice maker clamp wall to replace the low-temperature liquid refrigerant. In this way, a thin film of water is formed between the ice and the evaporation tube wall, which will act as a lubricant when the ice falls freely into the groove below under the action of gravity. The water generated during the ice harvesting cycle will be returned to the storage tank through multi hole tanks, which also prevents wet ice from being discharged by the machine.