How to Choose the Right Injection Molding Machine

With the development of resin chemical industry and mold industry, the application scope of injection molding products has been widely popularized. Therefore, the requirements for the precision and complexity of plastic products are getting higher and higher. Choosing the right injection molding machine is becoming more and more important.

Factors affecting the selection of injection molding machines:

Important factors that usually affect the selection of injection molding machines include product weight repeatability, mold opening position, cycle time, etc. Therefore, the following information must be collected or available before making a selection:

1. Product: size (length, width, height, wall thickness), net weight and total weight, etc.

2. Materials: the ratio of raw materials or granulated materials and other materials and crushed materials.

How to choose the model of injection molding machine?

The model and series are determined by the product and plastic. When customers choose an injection molding machine, they must first determine the structure of the injection molding machine according to the direction of product removal and the structure of the mold. There are mainly vertical injection molding machines, angle injection molding machines or horizontal injection molding machines.

There is little difference in the structure of the glue injection machines of the major manufacturers, and the structural difference is mainly in the clamping structure.

How to choose the clamping force of the injection molding machine?

The determination of mold clamping is determined by the design structure of the product mold and the plastic to determine the "clamping force" tonnage. Clamping force is an important parameter of an injection molding machine. When the high-pressure plastic melt fills the cavity, a large expansion force is generated in the cavity. This causes the mold to expand along the parting surface. The injection molding machine must provide a force larger than this expansion force to lock the mold, otherwise, the phenomenon of overflowing and running material will occur.

Too much clamping force will not only increase the purchase cost, but also increase the difficulty of venting. This will cause the product to be burnt or lack of material.

More importantly, when the machine is under force, the wear of the machine is aggravated, and the life of the clamping mechanism and hydraulic system is shortened. This also results in wasted energy.

Clamping force should be calculated by the customer's product projected area, the material, and etc. Clamping force, like injection volume, reflects the ability of machined products to a certain extent. It is often used as the main parameter to express the size of the machine size.

Conclusion

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