The general principles for selecting injection molding machines focus on three points: skill, economy, and quality. The characteristics of injection molding machines can be measured based on these three points. Common selection criteria for injection molding machines include the following factors:

1. Output power. The output power of the injection molding machine includes the injection volume, cycle time, and degree of automation of the injection molding machine.

2. Product quality. General product quality includes internal quality and external quality. Internal quality includes the physical and chemical characteristics of the product; External quality primarily refers to the structure, appearance, and performance of a product. Product quality primarily depends on the melting performance of the injection molding machine.

3. Power consumption. The power consumption of an injection molding machine mainly includes the driving power and heating power of the screw. Generally, an injection molding machine with high efficiency and low energy consumption is selected.

4. Service life. It mainly depends on the service life of the screw, barrel, and other mechanical structures on the injection molding machine.

We can choose a suitable injection molding machine according to three processes:

Select the appropriate injection molding machine model.

Select the appropriate screw method.

Determine the parameters of the injection molding machine based on the production scale and product quality.