Selection of injection chiller for industrial chiller

Compared with plastic water chillers, injection molding water chillers are very common in the industry. Most injection molding machines are equipped with water chillers for cooling. Today, we take you to know the selection of injection molding water chillers.

Let’s first understand the working principle of the water cooler of the injection molding machine: after the plastic particles are heated and melted in the injection molding machine, they are injected into the mold for condensation, and then the mold is opened and ejected to form the plastic workpiece. In the continuous production process, the chilled water system of the water cooler is required to cool the mold, so as to shorten the plastic solidification time and improve the dimensional accuracy, molding quality and surface quality of the workpiece, This is the working principle of injection molding machine chiller. Water cooled box chillers are generally used for injection molding machines. If the chiller is applied to the cooling of the forming mold of plastic processing machinery, it can greatly improve the surface finish of plastic products, reduce the surface marks and internal stress of plastic products, make the products not shrink and deform, facilitate the demoulding of plastic products, accelerate the finalization of products, and greatly improve the production efficiency of plastic forming machine; The chiller is applied to CNC machine tools, coordinate boring machines, grinding machines, machining centers, modular machine tools and various precision machine tools. It can accurately control the oil temperature, effectively reduce the thermal deformation of the machine tool and improve the machining accuracy of the machine tool.

After understanding the working principle of the water chiller of the above injection molding machine, you should start to choose the water chiller. Many people will ask: I have three injection molding machines and need a chiller with these three, so how big a chiller do I need? Firstly, the cooling capacity of the chiller is related to the injection volume of the injection molding machine. The larger the injection volume, the greater the cooling capacity required. If each of the three injection molding machines is 200 tons, we have to calculate: the number of injection molding machines is 3 * the tonnage of each machine is 200 / the fixed number is 80 = 7.5HP. In order to ensure the refrigeration effect, we suggest to use 8HP water chiller to drive the three injection molding machines at the same time. Do you understand that?

Now let’s show you the matching of vertical injection molding machine / horizontal injection molding machine when the cooling water condensation temperature of water-cooled box chiller is below 35 ℃ and the condensation temperature of air-cooled box chiller is below 43 ℃ under normal ambient temperature.

1、 When the clamping force of injection molding machine is nominal in “tonnage”

The 1HP water-cooled box chiller can be equipped with 80 tons of mold locking force, and the temperature of the injection molding machine is controlled at 5-10 degrees;

The 1HP water-cooled box chiller can be equipped with 100 tons of mold locking force, and the temperature of the injection molding machine is controlled at 10-15 degrees;

1HP water-cooled box chiller can be equipped with 120 tons of mold locking force, and the temperature of injection molding machine is controlled at 15-20 degrees;

The matching of air-cooled box chiller is 0.8 times that of water-cooled box chiller, then:

The 1 HP air-cooled chiller can be equipped with an injection molding machine with 64 tons of mold locking force, and the temperature is controlled at 5-10 degrees

1HP air-cooled box chiller can be equipped with 80 tons of mold locking force, and the temperature of the injection molding machine is controlled at 10-15 degrees;

1HP water-cooled box chiller can be equipped with 96 tons of mold locking force, and the temperature of injection molding machine is controlled at 15-20 degrees;

2、 When the clamping force of the injection molding machine is nominal in “Oz”

1HP water-cooled chiller can be equipped with a single injection quantity of 10   The temperature of Oz injection molding machine is controlled at 5-10 degrees

Injection volume 1 oz = 28.3 G