Why injection moulding

Machines can be specified with a choice of injection unit size, smaller injection units providing better accuracy if relatively small components are being produced for the size of machine. A good example would be the production of automotive components, where it is often the large and complex mould tools that dictate that a higher tonnage machine is needed for its physical size, rather than its maximum Locking Force.

Within each specified size of injection unit, there is also a choice of injection screw diameters. There is however a proportional reduction of the maximum injection pressure that can be generated. This is going to be less critical if large components with relatively thick wall sections are being produced using plastic materials that are of lower viscosity. If you are looking for a product or a moulder, please complete your details below and the BPF will send the detail, on your behalf, to the most relevant companies within the plastics industry who will contact you directly with more details.

British Plastics Federation. Polymer Prices. Member Offers. International Market Data. Sales Leads. Chemical Legislation. Get Funding. Promote Your Company. Health and Safety. Legal Support. BPF Branding. Communication Tools. Influence UK Policy. Your Company Page. Injection Moulding. The tool can be used to manufacture one consistent part in a repeating process or incorporate multi cavities a multi impression tool , that is many components can be manufactured on the same tool repeatedly with a single injection.

See below for more information on the types of resins used in the process. Choosing the right material and color for a project are two of the essential factors in creating plastic parts. Due to the wide variety of both, the possibilities are almost endless. The advances in polymers over the years have contributed to the development of a large selection of resins from which to choose. To ensure you select the right resin for your project, keep in mind the following variables: impact strength, tensile strength, a flexural modulus of elasticity, heat deflection and water absorption.

Plastics can be colored using various coloring systems, each of which offers its own unique properties, benefits, and drawbacks. To learn more, check out our recent article on how plastic resins get their color. During the molding process, excess plastic is generated. You want to look for a company that has a system in place to recycle its excess plastic. The most eco-friendly plastic injection molding companies employ state-of-the-art machinery to assist them in minimizing waste, transportation, and packaging.

Visit our Sustainability page to learn more about these initiatives. Labor costs are typically relatively low in plastic injection molding, in comparison with other types of molding. The ability to produce the parts at a very high level with a high output rate helps with its cost efficiency and effectiveness. The molding equipment typically runs with a self-gating, automatic tool to keep operations streamlined and production ongoing, requiring minimal supervision. Automation abounds at Rodon, from our 3D computerized design capability and automated tool fabrication processes to our computerized and automated plastic injection molding machines and robots.

You should have no doubts about using this method to manufacture parts. Here are 5 major advantages of using injection molding for manufacturing plastic parts and components.

The injection molds are subjected to extremely high pressure. As a result the plastic within the molds is pressed harder against the mold compared to any other molding process. Due to this excessively high pressure, it is possible to add a large amount of details into the design of the part. Furthermore, due to high pressure during the molding process, complex and intricate shapes can easily be designed and manufactured which otherwise would have been too complicated and expensive to manufacture.

Plastic injection molding process hardly takes times and this allows more parts to be manufactured from a single mold. The high production output rate makes plastic injection molding more cost effective and efficient. Learn more about the key differences between hot-runner and cold-runner systems. In plastic injection molding, it is possible to use fillers in the injection molds.

These filler reduce the density of the plastic while it being molded and also help in adding greater strength to the part after it has been molded.