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In the injection molding industry, the cooling system of injection molding machines is crucial for ensuring production efficiency and product quality. During the injection molding process, the mold and plastic melt require rapid and stable cooling to avoid product deformation, shrinkage, or other quality issues.

1.Power matching

Firstly, the power of the chiller needs to meet the requirements of the injection molding machine. Injection molding machines usually indicate their power requirements, including power supply voltage and rated current. When choosing a chiller, it should be ensured that its power is greater than or equal to the required power of the injection molding machine to ensure that the chiller can provide sufficient cooling capacity. At the same time, it is necessary to consider the cooling capacity of the chiller (usually measured in tons) to ensure that it can cover the cooling needs of the injection molding machine at maximum load.

2.Temperature control

The temperature range of the cooling water for injection molding machines is generally between 6 ℃ and 18 ℃. During the injection molding process, the plastic particles are melted by heating and injected into the mold. After solidification, the mold is opened and the molded plastic workpiece is ejected. In the continuous production process, it is necessary to cool the mold to shorten the plastic setting time, improve the dimensional accuracy, molding quality, and surface quality of the workpiece.

Temperature range: The temperature of the cooling water is usually required to be between 6 ℃ and 18 ℃.
Temperature difference requirement: The temperature difference of the cooling water should be controlled within 0 ℃ or ± 0.5 ℃ to ensure precise control of the mold temperature.

Choosing the appropriate chiller is the key to ensuring cooling effectiveness. The cooling capacity of a chiller is related to the injection volume of the injection molding machine, and the larger the injection volume, the greater the required cooling capacity.

3.Traffic demand

Injection molding machines require a certain amount of cooling water to maintain temperature stability of the mold and melt during operation. Therefore, when choosing a chiller, it is also necessary to consider whether its cooling capacity can meet the water flow requirements of the injection molding machine. Generally speaking, the cooling capacity of a chiller should be able to meet the water flow rate and temperature difference required by the injection molding machine to ensure its normal operation.

4.Pipeline connection and piping system

The pipeline connection and piping system between the chiller and injection molding machine are also important factors to consider when selecting.

5.Flow rate and pressure of ice water machine

Generally, for the cooling of injection molding molds, the pressure of ice water should be selected between 0.1 and 0.2 MPa to meet the requirements.