What is a main disadvantage of injection moulding?

High setup cost is indeed a significant disadvantage of injection moulding. This process requires expensive machinery and precise molds to create products, which can lead to substantial initial investment. The costs involved in designing, producing, and maintaining the injection molds can be quite high, making it less economically viable for small production runs or one-off items.

Although injection moulding offers many advantages such as speed and efficiency for large-scale production, the high setup cost presents a barrier for smaller companies or projects where the volume of production does not justify the initial investment. This aspect should be carefully considered when deciding whether to use injection moulding for a particular product or component.