RPM design and manufacture high quality die cast, blow, vacuum and compression moulds for a wide range of requirements within industry sectors including the plastic, packaging, automotive and communication sector.
We work to specific build times and attain unrivalled delivery times. Our highly skilled in house design team undertakes all tool design, testing and prototyping work for die cast, blow, vacuum and compression moulds.
We manufacture using only European grade tool steels unless our client stipulates otherwise, and our machinery and facilities are second to none.
RPM’s team take pride in the fact that our high quality work holds up to the challenges it is designed for and the fact that our clients keep coming back for high-spec tooling designed to meet every requirement.
RPM’s international clients include the likes of Sika Technology Ltd, Australasia’s leading supplier to the telecommunication industry, and Premier Plastics Ltd, an innovative global company in the packaging industry. Read our case studies here.
Die Cast, Blow, Vacuum and Compression Moulds are heavily employed throughout the plastics and packaging industry and a common requirement is bottle and crates tooling.
We’re ready to talk about how we can assist with die cast, blow, vacuum and compression moulding tools.
The metal casting process of die casting involves forcing molten metal under high pressure into a mould cavity, which is initially created using two hardened tool steel dies which have been machined into shape and work in a similar way to an injection mould. Depending on the type of metal being cast, a hot- or cold-chamber die casting machine is used.
Blow molding is a manufacturing process for forming hollow plastic parts, which begins with melting down the plastic and forming it into a parison or preform. The parison is a tube-like piece of plastic with a hole in one end that the compressed air can pass through. Then the parison is clamped into a mold and air is pumped into it, pushing the plastic out to match the mold. The part is ejected when the plastic has cooled and hardened the mold opens up.
A sheet of plastic is heated to a forming temperature then stretched onto or into a single-surface mold, and a vacuum is applied to hold the sheet against the mold. Vacuum forming is often used to make product packaging, car dashboards and speaker casings.
Molding material is generally preheated then placed in an open, heated mold cavity which is closed before pressure is applied to force the material into contact with all mold areas, while heat and pressure are maintained until the molding material has cured.
Compression molding is typically used to make larger flat or slightly curved parts, and is widely used in manufacturing automotive parts like hoods, fenders, scoops, spoilers, and many small, more intricate parts.