Transfer moulding is a process where the amount of moulding material is measured and inserted before the moulding takes place.
The moulding material is loaded into a chamber known as a pot. A plunger is then used to force the material from the pot through channels known as injection point into the mould cavities. The mould remains closed at the material is inserted. The mould walls are heated to a temperature above the melting point of the mould material this allows a faster flow of material through the cavities.
This is an automated operation that combines compression, moulding and transfer mould processes. The combination has a good surface finish, dimensional stability and mechanical properties obtained.