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At sedak, tempered glass shows what it can really do

Glass tempering means treating basic glass products, up to 20m (787in) long, to create heat-strengthened or fully tempered glass, which, after firing, can be further processed to form laminated safety glass.

sedak has one of the world’s largest glass tempering installations with a 75m (246ft) long furnace for processing flat glass to create heat-strengthened or fully tempered glass.

In 2017, sedak expands its range of capabilities and starts operating a new tempering furnace for glass up to 16.5m. The so-called convection furnace allows the glass manufacturer to temper pre-coated glass. That leap in technology offer clients not only time but also cost efficiency.

We also set standards in terms of quality control of heat-strengthened and fully tempered glass. If required by a customer, we can test every fully tempered pane in our heat-soak chamber for the nickel sulfide inclusions that can cause spontaneous failure. The result of the heat-soak test is a standardized, high-quality, heat-soak-tested, fully tempered glass.

 

The new convection furnace

Overview production capabilities.pdf

Heat-strengthened glass
max. length 20000mm 787in
max. width 3510mm 138in
thickness 6mm - 12mm 1/4 - 1/2in
max. weight 1584kg/pane 3492lbs/pane
min. surface tension 70 MPa
standard DIN EN 1863
Fully tempered glass
max. length 20000mm 787in
max. width 3510mm 138in
thickness 6mm - 19mm 1/4in - 3/4in
max. weight 2508kg/pane 5529lbs/pane
min. surface tension 120 MPa
standard DIN EN 12150
Heat soak Test (HST)
max. length 20000mm 787in
max. width 3510mm 138in
thickness 6mm - 19mm 1/4 - 3/4in
max. weight 12000kg 26455lbs
standard DIN EN 14179