Materials and Furnaces

We continuously improve both the production process and the range of products, our goal is maximum satisfaction of our customer’s requirements.

Materials and Furnaces

GRAY IRON / Cast iron with lamellar graphite

We produce grey iron by the duplex technology; the iron is first molten in the cupola furnace and then it is modified to the final required quality in the induction furnaces

EN-GJL-150 GG 15 42 2410 Class 25
EN-GJL-200 GG 20 42 2415 Class 30
EN-GJL-250 GG 25 42 2425 Class 35
EN-GJL-300 GG 30 42 2430 Class 40
EN-GJL-350 GG 35 42 2435 Class 45


VERMICULAR IRON / Cast iron with vermicular graphite

Vermicular iron is used especially for parts with special character requirements, e.g. they are exposed to a cyclical thermal stress.



DUCTILE IRON / Cast iron with spheroidal graphite

Ductile iron is produced by the technology Tundish Cover or Cored Wire.

EN-GJS-350-22 GGG 35.3 42 2303 -
EN-GJS-350-22LT GGG 35.3 42 2303 -
EN-GJS-400-15 GGG 40 42 2304 60-40-18
EN-GJS-400-18LT GGG 40.3 42 2314 60-40-18
EN-GJS-450-10 GGG 45 - 65-45-12
EN-GJS-500-7 GGG 50 42 2305 70-50-05
EN-GJS-600-3 GGG 60 42 2306 80-60-03
EN-GJS-700-2 GGG 70 42 2307 100-70-03


Cupola furnace

Hot-air cupola GHW without lining with a capacity of 10 t/hour

Induction furnaces

1 six-tonne low-frequency induction furnace
2 six-tonne medium-frequency induction furnaces


Analysis of molten metal solidification

The inner quality of metal depends not only on chemical composition of metal matrix but on the manufacturing process as well. The method of metal melting, a proportion of metal charge, alloying additives, the velocity of melting, time for which the metal temperature is kept etc. are factors affecting the final metallurgical quality of iron. The melting shop is equipped with an instrument ATAS, a device measuring and evaluating the solidification curves of smelt, to check, stabilize and improve the inner quality of castings.