Iron foundry

We get castings into shape – since 1867

We manufacture grey cast iron (GJL), ductile cast iron (GJS) and Ni-Resist. A reliable manufacturer and supplier is particularly important when it comes to procuring castings for your company these days. Two modern induction furnaces and an advanced PPS guarantee on-time deliveries. Thanks to our pattern making department, you can of course also order your pattern equipment from us. Quality and customer satisfaction are the cornerstone of our business relationships. As a result, some customers have been loyal to us for over 80 years.

Casting process

From the design to the end product

Modelling

Models are required for each cast part. However, these models do not correspond to the end product. They have to be made slightly larger to compensate for shrinkage during cooling. Sand moulds are then produced from these models.

Iron casting is no easy matter: the process is not only physically demanding, but also requires metallurgical expertise.

We can cast the following casting qualities with our systems:

  • Cast iron with spheroidal graphite
  • Cast iron with lamellar graphite
  • Ni-Resist

The induction furnaces in our iron foundry heat the raw materials for iron casting. (pig iron, steel scrap, cast iron scrap and recycled material from the foundry) Alternating voltage is applied to a water-cooled induction coil. This induces eddy currents in the material. High currents flow – but the casting process is fast and efficient as a result.

Before finalisation, a small sample is taken for analysis. This is done by so-called spectral analysis. The cooled sample is vaporised in a plasma surrounded by inert gas. The resulting photons pass through a prism and are projected onto the back of the chamber. Optoelectronic elements are located on this rear wall, which measure the light intensity of the respective electromagnetic wavelength. A computer calculates the percentage value of the respective element (C, Si, Mn, Cr, Ni, Mo, Cu, …) very precisely. The experienced smelter in our iron foundry can use these values to correct the iron casting by alloying.

When the melt has reached a temperature of approx. 1400 °C-1500 °C, the furnace is tilted and the material is removed.