We would like to continue our discussion by demonstrating how this innovative machine can be integrated in a basic production laminating glass line for max glass dimensions 2,200 x 3,600 mm.
In principle, the low pressure autoclave is quite similar to a high pressure autoclave in terms of how they operate. However, Lisec's new entry-level model offers significantly shorter cycle times and reduced energy consumption than the high pressure autoclaves. Having a maximum working size of 2,200 x 3,600 mm, the low pressure autoclave can process up to 2 tons of glass in less than three hours. When combined with a pre-lamination system (with pre-press rollers and heating furnaces), cycle times can be reduced still further. In this way, 140 m² of glass can be produced per shift.
The advantage of Lisec's low pressure autoclave is a reduced investment (when compared to a line combined with standard autoclave) and similar high quality results!
Line Process Flow
After being loaded on the tilting table and driven into the washer, glass is parked on the caster sphere table. Through an operator assisted handling device the glass is moved onto a tray placed on a supporting table and the pre-cut PVB foil is manually applied. The operator now brings the following glass for the assembling and trims the excess foil. Fully loaded tray is subsequently closed and pushed out of the climatic room to be placed on a scissor lift, which enables to lift and match the storage rack levels. Storage rack is moved in front of the low pressure autoclave where the operator easily slides each tray to the corresponding slot.
This configuration allows an estimated daily output of ~ 95 m2 / 8 h shift and needs an available area of approximately ~280 m2 , 28 x 10 m. Total installed power is equal to 140 KW and cycle time takes from 2 to 3 hours according to the total glass volume loaded into the low pressure autoclave (max 2,000 kg), which is pressurized at 1 bar above atmospheric pressure and is heated up to 150 °C.
- Ideal for miscellaneous production, maximum average < 3 m2
- Processing of flat or curved glass
- Different types of films allowed: PVB Standard / EVA / Ionomers
- Low installed power required
- Considerable energy savings (compared to standard autoclave)
- Vacuum connections included
- PED certification
Manual assembly without heating and pressing sections require constant use of vacuum systems during the pressurization cycle. Therefore, all trays must be equipped with silicone bags for vacuum process.