The ice cream machine, also known as the ice cream freezing machine, is an automated equipment specially designed for the production of frozen desserts - ice cream. According to the purpose, the ice cream machine can be divided into large-scale freezing machines used in factory assembly lines and There are commercial ice cream machines used in the catering industry, as well as household ice cream machines for home use. Household ice cream machines do not contain any electromechanical components, so they will not be discussed here. Here we only discuss commercial ice cream machines used in catering establishments. According to the required form category of the finished ice cream, ice cream machines are mainly divided into soft ice cream machines and hard ice cream machines. Soft ice cream machines generally include economical ice cream machines, fantasy ice cream machines, luxury ice cream machines, five-head ice cream machines, seven-head ice cream machines, desktop ice cream machines, etc. Hard ice cream machines generally include desktop hard ice cream machines, mobile hard ice cream machines, automatic hard ice cream machines, etc.

The structure of the ice cream machine:

The core components mainly include the raw material cylinder and its refrigeration system , freezing cylinder and its refrigeration system, stirring scraper frame, conveying device and control system.

The working principle of the ice cream machine:

Its working process is: raw material cylinder - mix air pump - freezing cylinder - scraper in the freezing cylinder - pouring outlet.

Raw material tank: used to mix ice cream raw materials and temporarily store the resulting milk slurry. During operation, the thermistor is used to control the operation of the refrigeration system, and the temperature of the raw material cylinder is controlled between -0.5~6.5℃.

Narrow air/mixture mixing pump: It is the key equipment for conveying the equipment. It conveys the mix to the freezing cylinder, and its operation is controlled by the pressure switch. Generally, air and liquid mix enter the mixing zone at the same time according to their respective paths, and then enter the freezing cylinder through the delivery pipe. In the refrigeration system of the raw material tank that stores the mix, the refrigerant is divided into two paths at the M door of the drying filter. One path enters the evaporator of the raw material cylinder through the main capillary tube, and the other path enters the outer wall of the mix delivery pipe and the pipe through the auxiliary capillary tube. The mix undergoes heat exchange and pre-cools the mix entering the freezing cylinder to keep its temperature at about 4°C to ensure product quality and food safety.

Freezing cylinder: The inner surface is its working surface. The milk slurry and air are stirred and expanded, and are cooled upwards in the freezing cylinder to form a milkshake. After 7 to 11 minutes, when the product reaches the required consistency, it is scraped off by the spiral scraper and sent to the pouring outlet. The product can be poured by pulling down the pouring handle. The standard temperature of the product is about -7~-8℃.

The mixing scraper holder in the freezing cylinder: driven by the mixing motor through the reduction box and transmission shaft, is used to stir the mix so that the mix and air are fully mixed. The spiral scraper scrapes down the cylinder wall at the same time to form of small ice crystals and push the formed smoothie towards the freezer door.

Soft ice cream is judged by the shape and viscosity of the product. The freezing cylinder refrigeration system is controlled by the current of the stirring motor. When the current of the stirring motor reaches the set value, the compressor of the refrigeration system stops working, and the stirring motor also stops working.

Ice cream machine classification:

According to height and volume, it can be divided into desktop ice cream machines and vertical ice cream machines. Desktop ice cream machines are more suitable for occasions with limited operating space, such as in the operating rooms of bars and cafes. This type of ice cream machine can also be placed directly on the bar. The vertical type is a popular model.

It can be used for takeout or dine-in. Due to the compact design of desktop machines, it is not conducive to heat dissipation. Therefore, the heat dissipation of vertical machines is better than that of desktop machines. Therefore, it is recommended to use vertical ice cream machines when the ambient temperature is too high

According to the structure of the ice cream machine compressor, it can be divided into non-hermetic compressor, semi-hermetic compressor and fully hermetic compressor. Most machines produced by manufacturers now use hermetic compressors.

According to the hourly rate of the ice cream machine The output can be divided into less than 10 liters, 10-20 liters, 20-30, 30-40 and more than 40 liters. Generally, ice cream machines are divided into models based on output. For example, 7228, where 28 means that the output per hour is 28 liters. Of course, ice cream machines There is a difference between the actual output of the machine and the marked output. This has a lot to do with the quality of the ice cream machine, the ambient temperature used and the temperature of the ice cream liquid. Therefore, good ice cream will be produced at the same time When the ambient temperature is the same as the feed temperature, the output is better than other ice cream machines. If a machine can still maintain good output under harsh ambient temperatures, it means that the performance of this machine is relatively better. This This can only be realized slowly during use.

According to the type of ice cream production, it can be divided into two categories: soft ice cream machine and hard ice cream machine. Soft ice cream machine is a KFC cone or Sundae ice cream. Hard ice cream is the kind of ice cream that uses scoops to make fancy ice cream. Generally, soft ice cream must be made with an ice cream machine. The temperature of soft ice cream is about -3 degrees. Hard ice cream can pass by itself. It is made by freezing in the refrigerator. However, the effect and efficiency are far inferior to that of ice cream produced by a hard ice cream machine. Because hard ice cream requires quick freezing, the soft ice cream produced by the ice cream machine must be placed in a freezer below -23 degrees and quickly frozen. The purpose is to prevent the moisture in the ice cream from forming ice particles during the freezing process and to maintain the delicate texture of the ice cream. Therefore, if you want to make Italian ice cream, you need a hard ice cream display cabinet with a refrigeration temperature of -18 to -23 degrees.

A good soft ice cream machine has the following characteristics:

1. It has a good and stable expansion rate. The expansion rate of an ice cream machine mainly depends on the quality of the compressor. There is a big price difference between a good compressor and a poor compressor, which also results in the price difference of the ice cream machine. And a good ice cream machine expansion rate can greatly reduce your ice cream production costs. The ice cream machines on the Sigma Food Machinery and Equipment website are all imported from Italy and the quality of the compressors should be well guaranteed, and the compressor warranty of its Sigma Food Machinery and Equipment is three years.

2. Stable freezing performance and good effect

3. High output and stable output. Generally, the larger the number, the stronger the production capacity of the machine. To put it simply, it means unit time. The output is greater. Naturally, the more ice cream will be produced [referring to the soft ice machine]. This is a key indicator.

4. A low failure rate can ensure a continuous supply of your ice cream

As for the price, you can go to Sigma Food Machinery and Equipment Network to see what brands of ice cream machines there are. You can refer to the price. The compressors of most products are imported and have a three-year warranty, and ice cream machines at various price points should have what you need