Injection molding machine selection

Generally speaking, customers who have been engaged in the injection molding industry for many years are mostly able to judge and choose the appropriate injection molding machine for production. However, in some cases, customers may need the assistance of the manufacturer to decide which specification of injection molding machine to use. Customers may even only have samples or ideas of the product, and then ask the manufacturer whether the machine can produce it, or which model is more suitable.
In addition, some special products may require special devices such as accumulators, closed loops, injection compression, etc. to be produced more efficiently. It can be seen that how to decide on the right injection molding machine for production is an extremely important issue. The following information is provided for readers' reference.
The important factors that usually affect the selection of injection molding machines include molds, products, plastics, molding requirements, etc. Therefore, before making a selection, the following information must be collected or available:
Mold size (width, height, thickness), weight, special design, etc.;
The type and quantity of plastics used (single raw material or multiple plastics);
The appearance size (length, width, height, thickness), weight, etc. of the injection molded product; molding requirements, such as quality conditions, production speed, etc.
After obtaining the above information, you can follow the steps below to choose the right injection molding machine:
1. Choose the right model: The model and series are determined by the product and plastic.
Since there are many types of injection molding machines, you must first correctly determine which injection molding machine or series should be used to produce this product, such as general thermoplastic plastics or bakelite materials or PET materials, single color, two colors, multiple colors, sandwich or mixed colors, etc. In addition, some products require high stability (closed loop), high precision, ultra-high injection speed, high injection pressure or rapid production (multi-loop) and other conditions, and you must also choose the right series to produce.
2. Can fit: Determine whether the "large column inner distance", "mold thickness", "mold minimum size" and "mold plate size" of the machine are appropriate based on the mold size to confirm whether the mold can fit.
The width and height of the mold must be smaller than or at least one side must be smaller than the inner distance of the large column;
The width and height of the mold should preferably be within the mold plate size range;
The thickness of the mold must be between the mold thickness of the injection molding machine;
The width and height of the mold must meet the minimum mold size recommended by the injection molding machine, and it cannot be too small;
3. Take it out: Determine whether the "mold opening stroke" and "mold ejection stroke" are sufficient to take out the finished product based on the mold and the finished product.
The mold opening stroke must be at least twice the height of the finished product in the direction of opening and closing the mold, and must include the length of the vertical sprue;
The mold ejection stroke must be sufficient to eject the finished product;