Transfer moulding is a very similar process to compression moulding, the main difference being where the material is placed within the mould. The rubber is loaded into a chamber above or below the tool and squeezed through passageways/gates to form the shape.
This process can be used to create more intricate or ‘awkward to compress’ mouldings where simple compression just won’t do. Typically mouldings with a metal or plastic insert inside will be moulded using this process.
As with compression moulding, once the vulcanization has taken place the mould is then removed from the press and opened up to reveal the finished moulding inside. After cooling it goes through an initial check, trimming and a further quality check before being dispatched to the customer.