The heating of metal by induction has been in industrial use since the beginning of the 20th century, but it is only in the last few years that it has become possible to produce high- efficiency, low  to medium power apparatus, due entirely to semiconductors.

CEIA's Induction Melting Machines have achieved widespread recognition in the field of precious metal casting. Careful study has led to the choice of appropriate operating frequencies that have almost eliminated the problems of weight loss of the precious metal and surface oxidisation on melting. Unlike in the case of high frequency furnaces, high-density surface currents ("skin effect"), which can violently oxidise the metal being treated, are not created.

Special electronic power circuits allow conversion efficiency, thereby reducing power consumption to about half that of electronic tube apparatus for the same amount of metal treated. There are also no maintenance or operating costs caused by the replacement of the generator tubes.

To add to these features there is the speed of melting, the purity of the alloy and very low cooling water consumption.

Digitally adjustable power (in a wide range of values) gives the possibility to optimise the melting time.

A careful control system (carried out by means of a thermocouple or an optical sensor in option) allows keeping metal at the melting temperature, without overheating.

All functions of the furnace are controlled by microcomputer; this guarantees consistency, high reliability and ease of operation.

A checking system uses voice synthesis to indicate immediately the need for any action by the operator.

Furthermore, CEIA digital melting machines are characterised by mechanical and electronics design specifications in excess of operational requirements, to guarantee their reliability