Our company is recognized as one of the world’s leading producers of fused cast refractories. Our products are mainly used in the glass and ceramic industry as well as in the reheating furnaces of the steel industry. Magnesium industry is also an important market, we supply refractories to the furnaces that electrolyze and melt metal magnesium.  More than 90% of our turnover is gained from the export sales. Our traditional markets are Western- and Central-Europe, but we are present on all continents with our products.

To satisfy the quality requirements of customers and to ensure good quality on a continuous basis, Motim Hungary’s fused cast refractory expert has implemented comprehensive production technology improvements at both of its factories.

Korvisit A and Korvisit AB fused cast alumina refractories are produced at one works. A modern graphite molding workshop was built here, with new machining equipment to guarantee the dimensional accuracy of moulds. In addition, melting, stripping and annealing technologies were updated. These modifications allow Motim to manufacture much larger feeder channel blocks, for example.

To improve surface quality, Motim purchased a state of-the-art grinding machine, which can grind two parallel surfaces simultaneously. The latest crushing plant has also been installed for the preparation of recycled in-house material.

Motim’s other works is engaged in the production of Zirkosit S32, Zirkosit M36, Zirkosit Y41 fused cast AZS refractories.



ZIRKOSIT S32 is the most commonly used type of AZS fused cast refractory produced by MOTIM having 32,6% zirconium-dioxide content.

ZIRKOSIT S32 blocks have long been used in glass melting furnaces with excellent result both in high and low temperature zones.

Recommended fields of application:

  • superstructures
  • paving tiles
  • working ends
  • feeder channels
  • special shapes

ZIRKOSIT S32 fused cast refractory blocks are manufactured by the following casting methods:

  • regular cast (N)
  • void free special shapes (KLS)
  • void free tiles (KLP)



ZIRKOSIT M36 is an AZS type fused cast refractory material with 36,2% zirconium-dioxide content. ZIRKOSIT M36 blocks can provide improved service over ZIRKOSIT S32 but are more economical than ZIRKOSIT Y41.

MOTIM recommends to apply ZIRKOSIT M36 blocks for the parts of glass melting furnaces where better performance is required than is achievable by using the lower zirconium-dioxide containing AZS type fused cast refractory but where the usage of the higher zirconium-dioxide content material is not justified technically or commercially.

Recommended fields of application:

  • side walls
  • bottom paving
  • superstructures
  • feeder channels
  • working ends

ZIRKOSIT M36 fused cast refractory blocks are manufactured by the following casting methods:

  • regular cast (N)
  • end cast (EL)
  • void free tiles (KLS, KLP, KLB)



ZIRKOSIT Y41 is AZS type fused cast refractory material with the highest zirconium-dioxide content produced by MOTIM. ZIRKOSIT Y41 blocks have been accepted and used in the most exposed parts of glass melting furnaces by the leading glass makers all over the world with excellent results.

Recommended fields of application are:

  • weir
  • electrode blocks
  • throat
  • bubbling blocks
  • side walls
  • corner blocks

ZIRKOSIT Y41 fused cast refractory blocks are manufactured by the following casting methods:

  • regular cast (N)
  • end cast (EL)
  • void free tiles (KLS, KLP, KLB

  • Fiber Glass    
  • Flat Glass    
  • Special Glass    
  • Tableware Glass    
  • Hollow Glass    


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nº 132-134 Edifício 2
2710-418 Sintra, Portugal
Phone: +351 219 248 020

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