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Transfer Moulding

Camberley Rubber Mouldings is one of the premier transfer moulding suppliers in the UK. We produce a full range of bespoke rubber products for customers all over the world, using a variety of rubber moulding methods including transfer rubber moulding.

Transfer moulding is similar to the compression moulding process, with the addition of a transfer pot and feed hole to the cavity. This process offers high-quality repeatable parts and as the tool is completely closed it has less ‘flash’ when compared to the compression process, yet retains the advantage of lower tooling cost.

In transfer moulding, the compound is fed into the cavity by the cylinder under pressure from the top plate as the press closes.

The closed tool is placed into the press with the uncured rubber slug positioned in the transfer pot. On closing the press, the rubber is transferred into the cavity under pressure, forming the shape of the cavity. Pressure and temperature are maintained for a pre-determined time to ensure that the curing process is complete. The part is then removed from the tool and the transfer injection marks removed to the required finish.

Transfer Moulding 1

I have been dealing with Camberley Rubber for the last 7 years and in this time we have enjoyed a problem free and very pleasant relationship with all contact staff at Camberley. We have often been in serious need of assistance, eg. our customer would experience a problem and Camberley will always go the extra mile to help solve our customer issues.In the last 7 years, we have not experienced a single late delivery or a non-conformance! Camberley is an outstanding supplier to our company and if we as a company presented “Supplier of the year” awards, Camberley would win year on year as they are by far the best supplier that we deal with.

Large Energy Company | Buyer

Camberley Rubber are an excellent supplier and have continued to meet our expectations and demand for a number of years. Their delivery performance is consistently 100% on time in full, and their customer service team are always quick and happy to help with any queries or issues.

PPE Manufacturer | Buyer

Our previous suppliers weren’t able to provide the reliability of production, cleanliness & quality we required but CRM quickly grasped the issues & worked hard to meet our needs.

Leading Manufacturer of Pharmaceutical Valves | Managing Director
Transfer Moulding 1

Step 1
A piece of cold uncured rubber compound is placed into a portion of the mould called the “pot.” The piston (on the top-most part of the mould) fits snugly into the “pot.”

Transfer Moulding 2

Step 2
The mould is placed between the heated platens of the press which closes under hydraulic pressure, as the “piston” pushes down into the pot the rubber is forced through the small hole (the “gate”) into the cavity forming the shape of the finished moulding. The mould remains closed under pressure and heat until the rubber is completely cured and ready for removal.

Transfer Moulding 3

Step 3
The press opens. The tool is pulled forward and the pot lid removed along with the transfer pad excess rubber.

Transfer Moulding 4

Step 4
The tool is opened, the moulding removed from the cavity and the transfer pip removed to the required finish.

The process is then ready to be repeated.