How a roll ice machine works.
If you want to start the Roll ice cream business, you have to know details about the roll ice machine and its’ works.
In this article, we’ll look at how different types of roll ice machines work. Click the photo below for an enlarged view of the cooling system of the ice roll machine.
Roll Ice Cream Machines can be built in a variety of ways. The cheapest machines on the market use a single simple cooling loop. The compressor emits high-pressure refrigerant vapor. This hot refrigerant vapor passes through the condenser/fan unit and extracts heat from the gas and converts it into a hot liquid refrigerant. The liquid refrigerant then passes through the capillaries, reducing the pressure and temperature of the liquid. This cold liquid refrigerant then enters the cooling coil of the cold pan, where heat is absorbed by the refrigerant flowing through the tube. This cools the surface of the ice cream pan. When the refrigerant heats up, it returns to low-temperature, low-pressure steam. The steam is then sucked back into the compressor, where it is recompressed into high-pressure, high-temperature steam, where the entire cycle resumes.
With cheap pots on the market, the temperature of these systems is controlled simply by turning the compressor on and off. There are some problems with this. First of all, it’s not good to turn the compressor on and off. This leads to premature failure of the compressor. Secondly, this type of control does not allow the surface temperature of the pot to be uniform. The center of the pot may get cold, but the outer edges are unlikely to reach the desired temperature. The longer the compressor runs, the smaller the temperature difference across the pan. But there is a better way.
Adding a cooling solenoid between the outlet and inlet of the compressor provides another way to control the temperature. When this solenoid opens, some of the hot steam leaving the compressor circulates around the normal cooling loop and returns directly to the compressor, effectively reducing the cooling capacity of the circuit. This will gradually heat the surface of the pot during this time. This method is better than the previous method, but it still has problems. If the bypass solenoid is open, hot gas can move backwards through the pan coil. The effect of this is that the edges of the pot get quite hot. More expensive units under the Kolice brand use this type of scheme.
The Arctic Griddle series of coiled ice pans is the only one on the market to solve this latest challenge. A check valve is included at the outlet of the pan coil to prevent this reverse hot gas flow. This makes the construction of our unit more expensive, but our pancakes have the most uniform and stable temperature control of any ice cream maker on the market.
Almost all machines on the market are thawed using a hot gas process. The solenoid is connected between the compressor output and the pancoil input. When this solenoid opens, hot gas flows through the coil and heats the pot significantly.
When an inexpensive ice cream maker fails, it is most often due to a solenoid or a relay that drives the solenoid. Therefore, having these components alone is not enough to make your machine great. These particular components must be of high quality and reliability. Otherwise, you will actually have problems later.
If you have any questions about how the rolling / fried ice cream machine works, feel free to send us your questions.