High precision components with reduced cycle times
Industrial Rubber have been leading rubber injection moulders in the UK for over 40 years. Injection moulding is the process of shaping a rubber compound using heat and pressure and injecting it into a mould to manufacture a component. The main advantages of rubber injection moulding are that it has fast production turnaround, less waste and high tolerance. It is now typically the most common form of rubber processing for high volumes. Tooling for rubber injection moulding is more expensive than compression or transfer moulding but this is recouped by lower part costs due to quicker production.
Injection moulding requires specialist injection equipment and Industrial Rubber have over 30 injection presses. Keen to be at the forefront of injection moulding technology we continuously update and upgrade machinery and our recent additions include new REP V4/10s, V5/10s and a V7/10.
Injection moulding at Industrial Rubber
Rubber injection moulding starts with efficient material selection and preparation. The rubber compound is produced as continuous strip approximately 80-100mm wide x 8-10mm thick. These strips are continuously fed into the “screw” on the injection moulding press. The rubber flows down the screw and fills a barrel to a predetermined weight of material (shot weight). A piston then forces the rubber to inject from the barrel though an injection nozzle into the sprue system of the tool which fills the cavity(s). When the cure period is completed, the press opens the tool and the product is de-moulded and the sprue removed. Once empty, the machine is ready to repeat the process.
Injection Moulding
