In 2014 Unitherm delivered a combined rotary kiln burner M.A.S./5/KO.SO.X to a plant in Greece with the following technical specifications:

Plant capacity: 3.500 tpd with 5 stage precalciner kiln
Burner capacity: 65MW
Fuels: Petcoke: 9.000 kg/h
Solid secondary fuel: 5.000 kg/h
Fuel oil for start up

After several years of operation, the client is very satisfied with the results and highlights the following advantages:

  • 5-6 t/h more clinker production because of more stable kiln operation (3,5 – 4%)
  • The kiln has been operated with high sulphur petcoke (7,5% sulphur content) without any major problems concerning either operation or clinker quality
  • Smooth and continuous coating results in longer brick lifetime
  • Better control of burner flame shape


  • Higher production with the same fuels can be achieved through stable operation
  • High sulphur petcoke can be used due to effective momentum utilization with the unique primary air system of the M.A.S. burner
  • The M.A.S. system is a very powerful tool against ring formation
  • Easier operation and reduced maintenance

If you are interested in our burners or need more information about this project, please do not hesitate to contact us at or via the contact form!