Materials

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

Gray iron / Cast iron with lamellar graphite

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

EN DIN ČSN ASTM
EN-GJL-150 GG 15 42 24 10 Class 25
EN-GJL-200 GG 20 42 24 15 Class 30
EN-GJL-250 GG 25 42 24 25 Class 35
EN-GJL-300 GG 30 42 24 30 Class 40
EN-GJL-350 GG 35 42 24 35 Class 45
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Vermicular iron / Cast iron with vermicular graphite

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

EN
EN-GJV-300
EN-GJV-350
EN-GJV-400
EN-GJV-450
EN-GJV-500
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Ductile iron / Cast iron with spheroidal graphite

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

EN DIN ČSN ASTM
EN-GJS-350-22 GGG 35.3 422303 -
EN-GJS-350-22LT GGG 35.3 422303 -
EN-GJS-400-15 GGG 40 422304 60-40-18
EN-GJS-400-18LT GGG 40.3 422314 60-40-18
EN-GJS-450-10 GGG 45 - 65-45-12
EN-GJS-500-7 GGG 50 422305 70-50-05
EN-GJS-600-3 GGG 60 422306 80-60-03
EN-GJS-700-2 GGG 70 422307 100-70-03
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Furnaces

Cupola furnaceel pec

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

Induction furnaces

two 6 tonne 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 the factors affecting the final metallurgical quality of iron. In order to control this, the melting shop is equipped with an instrument ATAS, a device measuring and evaluating the solidification curves of smelt on purpose to stabilize and improve the inner quality of castings.

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