If you have 8 minutes spare, it is worth watching this clip of the investment casting process


Today most customers supply CAD files

Casting Simulation

Casting Simulation helps to identify problems and to increase yield and to reduce the required time to perform any design alterations.

Wax Pattern

A close tolerance wax pattern is manufactured by injecting molten wax under pressure into a tool using filled wax material

Soluble Pattern

Soluble Pattern is used in a wax pattern where undercuts are difficult to produce

Wax Assembly

This consists of building wax assemblies using runner bars, wax patterns, ancillary feeders, ceramic tie bars etc.

Mould Making

The wax assemblies are coated with refractory slurry and then covered with a refractory stucco to form several ceramic coats.


After the final drying cycle the wax material is removed from the ceramic shell mould by using high pressure dry steam.

Firing of the Shell Mould

Before the ceramic shell moulds are ready for casting they are fired at 1050 C.

Ladle Pour

The molten metal is poured into a hot ceramic mould using a ladle.

Roll-Over Furnace

A Roll-over furnace is generally used for pouring smaller hot ceramic moulds up to 50 kg.


When the metal has solidified and cooled to room temperature the ceramic mould material is removed by using a pneumatic knock-out hammer.


Some castings after post casting operations.


The finished cast components are subjected to fluorescent dye penetrant (FDP) detection of surface defects.

Machine Casting