Injection Moulding: Advantages and Disadvantages | mumble in the jungle

Injection Moulding: Advantages and Disadvantages

Injection moulding is a commonly used manufacturing process used across the globe. A quick look around your office, kitchen, car, and home reveals the hundreds of items and moulded parts that have come out of the injection moulding process. Such a commonly used process has many advantages which make it so popular. Here we review some of the benefits of the process, and when it is suitable for you.

Injection moulding

Injection Moulding – Advantages

  1. Fast Production Times. The injection moulding process turns out huge quantities of product in a very short time. The production time depends on the number of impressions your tool holds, but it can be expected to turn out cycles in only around 15 to 30 seconds. This benefits the business that needs a large number of parts and is operating on a tight timescale, according to
  2. Flexibility on Material and Colour. Once the tool has been made, you then have flexibility on changing the plastic or the colour, within reason, without too much difficulty. This is excellent if you know that last-minute design changes may need to be made.
  3. Flexibility in Design. With injection moulding you have a large amount of leeway when you are designing your parts. There are certain restrictions and you need to consider your material, but in general this is a highly flexible process.
  4. Low Labour Costs. This is not a labour-intensive process once the design has been finalised and the tool has been made. You recoup your investment in terms of low production costs where the machinery is set to work automatically.
  5. Fast Turnaround. When you set up an injection moulding project you can expect the actual production of the parts to be fast. The design and prototype stage takes a little longer but once this has been finalised you are not waiting on long lead times. When choosing injection moulding UK companies tend to be best as you do not have to factor in shipping times for the parts.

Injection Moulding – Disadvantages

  1. Cost of Initial Tooling. The price for the development of the tooling is the most expensive part of the process, so you need to budget for this outlay. However, once production is underway you will find the process to be extremely cost effective whether you are completing a large order or several smaller orders. If you are concerned about the initial cost, speak to a supplier to find out ways to bring the price down.
  2. Restrictions on Part Design. As with any process, there is not a limitless amount of options for design; you do need to work within certain parameters. You may find that you need to make a few changes to the design so that it can be successful in the injection moulding process. Seeking advice from a professional will make this easier to achieve and you will discover that with a few minor adjustments you will be creating an effective, economic part.


Image courtesy of Arvind Balaraman/