It is often hardly possible to respond to the increased requirements of the industry with respect to the quality of castings using the traditional gravity sand casting process.
To realise for example

structure components with thin walls for e-mobility,
heavy duty castings for new drive concepts or
complex magnesium castings for the aerospace.

Metallgießerei Wilhelm Funke is now able to offer the

differential pressure sand casting.

Operating principle
The sand mould to be cast is mounted above the melting furnace at the end of the riser and hermetically closed with a lid.
A vacuum is generated in the chamber. Thanks to the atmospheric pressure, the melt rises into the sand mould via the riser.

Customer benefits
The procedure offers clear benefits in comparison with the classical gravity sand die casting process for the production process as well as for the design of the component. You - as customer - benefit from

good mechanical characteristic values

compared with the gravity sand casting in connection with an

increased repeatability

by a controlled production process. Therefore it is possible to

achieve closer tolerances and
manufacture structure components with large surfaces and smaller wall thicknesses with
good mechanical characteristic values.