Plastic Parts Casting Service

Plastic Parts Casting Service

Let MillenniTek Cast Parts For You

Our technical department can analyze your 3D models and design a mold that will work in the Vacuum Casting process.  We can supply machined metal parts to use in the mold design.  Small volume parts can be supplied directly from Millennitek or we can help you with your own production by supplying the first molds for you to try copy.

We can offer total support for all of your requirements including supplying the original SLA models.  Often design changes need to be made to allow high yield casting of the parts.  This includes modifications to thin wall sections that may break when de-molding.  These changes are normally also necessary when injection molding and so the vacuum cast parts can be directly translated to high volume injection mold tooling.  Our team can help you to get your products to market.

Key benefits

  • Design advice prior to manufacturing the product ensures producible parts
  • SLA models can be supplied directly
  • Workable prototypes can be produced within days
  • Test the system before purchasing
  • Parts are commercial quality

Plastic casting process:

  • Master part creation – usually using stereolithography (SLA) 3D printing from a virtual model.
  • A silicone mold is formed around the master part.
  • The silicone mold is parted by cutting to the model
  • Now a two-part resin is used in the Vacuum Cast machine and the part is cast
  • The cast mold and part are cured in a low temperature oven
  • The cast part is removed
  • The part is now finished by fettling and polishing
  • Nylon is cast using a three-part system and a heated mixing cup

Metal Casting Services

High quality parts in non-ferrous metals using wax masters from the Renishaw vacuum casting process.

Renishaw provides a casting service in non-ferrous metals, such as brass, aluminium and low melting point alloys. We can also provide multiple wax masters produced using our vacuum casting systems. It only takes a matter of days to go from master model to investment cast metal parts. The process is particularly well suited for thin wall, complex geometries and delivers a high quality surface finish similar to a pressure die casting.


Key benefits

  • A master model can be produced rapidly via 3D printing technologies, usually stereolithography (SLA) or selective laser sintering (SLS).
  • Combine additive technologies to save time and cost by going direct to metal casting via model burnout.
  • Cost effective method to produce low volume metal parts.
  • Silicone tooling method produces fast, low-cost, multi-segment molds for wax part production, not possible with standard, traditional tooling methods.

Metal casting process:

  • Master part creation – usually using stereolithography (SLA) 3D printing from a virtual model.
  • A silicone mold is formed around the master part.
  • Now a wax master can be cast using the silicon mold and a vacuum casting system, multiples can easily be produced.
  • The wax master is encapsulated in ceramic and burnt out to create the mold for metal casting.
  • A metal part is cast using the mold, then the ceramic is removed.

Speak to a Product Specialist