What are the common tonnages of injection molding machines

re the common tonnages of injection molding machines

What are the common tonnages of injection molding machines? It is worth mentioning that the tonnage referred to here is not the weight of the injection molding machine, but the clamping force of the injection molding machine. This point is a lot of injection molding novice will understand the wrong, we can take a small notebook to write down.
 
What are the common tonnages of injection molding machines? It is worth mentioning that the tonnage referred to here is not the weight of the injection molding machine, but the clamping force of the injection molding machine. This point is many injection molding novice will understand the wrong, we can take a small notebook to note down. And specific knowledge about the tonnage of the injection molding machine, please listen to the following Fengtie Jun's explanation.

Injection molding machine tonnage is what?

Injection molding machine tonnage refers to clamping force, clamping force refers to the injection molding machine clamping mechanism applied to the mold clamping force. Speaking of clamping force, we will naturally talk about its corresponding melt pressure. When the melt pressure is too large, greater than the clamping force, then the force will be the mold open, the product can not be completed production. So in order to ensure that the product molding meets the accuracy requirements, the clamping mechanism must have enough clamping force to clamp the mold.

What are the common tonnages of injection molding machines?

The processing capacity of an injection molding machine depends on two parameters - injection volume and clamping force. Therefore, the tonnage of the injection molding machine affects the processing capacity of the injection molding machine, according to which the injection molding machine is divided into smaller, small, medium, large and larger. The detailed classification can be seen in the following table.

Clamping force (tonnage) and the same injection volume, also reflects the size of the injection molded products, is an important parameter of the injection molding machine, is to ensure the quality of plastic products is one of the important conditions. As a result, many countries and regions use clamping force as the standard of injection molding machine specification.

The average pressure of the mold cavity corresponding to different sizes of injection molded products

PE, PP, PS and other thick-walled and uniform easy-to-mold products, generally used in the average pressure of the mold cavity for 25 MPa; mold temperature is higher under the conditions of molding thin-walled containers, generally used in the average pressure of the mold cavity for 30 MPa; ABS, POM and other precision requirements of high precision parts, the viscosity of the material and the precision of the requirements of the high, generally used in the average pressure of the cavity for 35 MPa; High-precision mechanical parts, such as plastic gears, these products have high viscosity, difficult to fill the mold and high precision requirements, the average pressure of the mold cavity is generally selected for 40-45 MPa.