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Vacuum Casting Systems Part One - .PDF file.

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Vacuum Casting Systems Part Two - .PDF file.

MTT Technologies Group has produced technical literature describing the benefits of and typical applications for vacuum casting.

The process is most typically used for high-quality prototypes, small batch production for bespoke products, functional nylon components, automotive ‘hot test’ parts and high-quality waxes for investment casting.

Recent developments in PU resin and materials as well as the introduction of thermoplastic nylon casting capability have led to vacuum casting becoming a fully accepted manufacturing technology.

Material developments and the process stability brought about by PLC control and the MTT dispensing module, means vacuum cast components are being used for high-quality mouldings for trim and consumer products and high-performance structural parts in vacuum cast glass-filled nylon.

All this is possible without the need for hard steel tooling and with parts virtually indistinguishable from injection-moulded components.

Typical castings per mould range from 20-50 parts, depending upon complexity and materials used – with the silicone rubber mould manufacture taking less than 24h in most cases.

MTT’s vacuum-casting machines can be configured by exchanging modules for the production of parts in either PU resins, nylon and glass-filled nylon, prototypes in silicone rubber and highly-filled viscous materials, as well as wax master models for investment casting.

Vacuum-cast nylon parts can be produced in around 30min, with mould life ranging from around 15-30 castings per mould depending upon complexity, and with performance advantages over plastics sintering technologies.

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