Drying

Key parameters in oven design:
- Circulation of hot air between the ends
- Continuous renovation of air inside the oven
- Gradual increase of temperature to avoid blistering
- Reduced energy consumption & low maintenance cost
HEAT HAS TO BE PROPERLY APPLIED NOT ONLY TO REMOVE WATER BUT ALSO TO ACCELERATE FILM RETICULATION
Evolution of drying scenarios: Traditional
- Horizontal oven with stacked ends transportation
Actual
- Vertical oven with individual transportation of ends trought:
- Screw (risk of coating scratches and end jams)
- Chain/ pocket
Trend
- Post heaters with sufficient drying efficiency
- Low investment cost
- Low maintenance cost & time
- Easy change of end diameter