Glass thermal tempering oven

Automatic oven for thermal tempering of glass - LEMA 500


Maximum glass dimension: 180x120mm
Electric power: 13,5 kW
Oven overall dimension: L=230 x W=90 x H=180 cm
Net weight: 650 kg


LEMA 500 unit was succesfully designed in 1970 specifically to harden thin sunglass lenses without introducing optical distortion. It is perfectly adapable to harden small size glasses for several applications.

The unit is built with reliable mechanical and electrical components which are a guarantee for a long life even under continuous use.

The process of thermal strenghtening occurs by means of compressed and filtered air.

Recommended air specifications:

  • Tank capacity: 500 litres
  • Air flux outlet: 800 litres/minute
  • Air pressure in the tank: 7-9 kg/cm2



  • Oven: 230x90x180 cm
  • Control board: 101x48x101 cm
  • Total net weight: 650 kg


The unit needs to be connected to electric power line and compressed air to be ready to work.