Injection molding is economically and technically much more profitable than the seemingly cheaper method of molding into silicone molds.
Why is injection molding recommended for large batches?
- The production process results in higher quality products. The supply of liquid plastic under pressure allows it to be evenly distributed over the mold, filling even the smallest holes.
- Possibility to obtain a part of any complexity, incl. with very thin walls. For the production of products, a metal mold is made, the design of which takes into account all the small details of the future product. As a result, you can get both a simple and a very complex product, with many holes and bends.
- No need for mechanical processing of the product. The finished product does not require additional processing. The exceptions are very complex products, however, in this case, the improvements are minimal.
- Ability to reuse forms. The metal mold, which is created before production, will last a very long time, with its help you can make any number of products.
- Low cost, subject to the production of a large batch. The more products are made, the cheaper the cost of one copy will be, the process is mechanized - there is no need for labor costs.
However, this technology has its drawbacks:
the high cost of preparatory work, and, accordingly, the unprofitability of manufacturing a product in one copy or a small batch.