Compression moulding is the oldest and simplest way to make a rubber product and it is often the most economical method of manufacture. It finds application for prototypes and low and medium volume production.
Basically, the process consists of compressing a piece of uncured rubber between heated mould plates in a hydraulic press. The heat and pressure moulds the rubber to the shape of the cavity and vulcanisation occurs after a prescribed time. The product is removed from the mould and the cycle repeated.
We have a large number of conventional hydraulic presses, several of which are computer-controlled for greater accuracy and consistency of operation. These range in capacity from our small, 10-tonne laboratory press to a 300-tonne machine having a platen area of 900 mm x 900 mm. This comprehensive selection allows us to manufacture one of the widest ranges of product size available in the UK.
For more complicated precision rubber components it may be desirable to consider transfer or injection moulding.