The whole PU Sandwich Production Line includes uncoiling system, film covering and cutting system, roll forming machine, preheating oven, high pressure foaming system, double belt conveyor, double belt heating device, cutting system, etc.
The whole PU sandwich panel production line work process: Uncoiler will uncoil the steel sheet which goes to the roll forming machine. Then the upper and down roll formed panel will go to the double belt press machine while the PU foaming machine inject the PU inside at the same time. After 24m movement and heating, they will get sticked and come out of the press machine. Then the cutting machine will cut the panel into pieces. Then it can goes for the packing.
1. Beautiful sandwich panels with high practicality, such as insulation, sound-proofing and flame retardance.
2. Hot air circulation furnace strictly controls PU foaming and solidification temperature in suitable range.
3. Precise measurement, high stability, little dust making of the high pressure foaming system protect worker’s health from harm in producing.
4. Using 141B (or cyclopentane), instead of CFC as vesicant, PU foaming treatment becomes an environment-friendly production technology.
5. Special double belt conveyor design ensures flat surface, even thickness and anti-deformation of panels.
6. User-friendly design and simple operation control system: HMI together with PLC computer.