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Roof roll forming machine could make roof profile steel sheet.
It could be used independently or used in whole sandwich panel line. The main composing:
1. Guiding platform 
There is in the beginning of the main machine with left-right guiding. It can help the operator to make the sheet in the right direction, left side and right side can be adjusted separately by manual screw structure.
2. Pre-slitting system
This device is mainly use to save the material while change the material.
3. Roll forming system
Roll forming system consist of machine frame, transmission parts and roll forming rollers etc.              
a) Machine frame adopts welding structure with blasting treatment.
b) The roller of this line is made of No.45 steel, surface painted with hard chrome, all treated by full CNC precision machines, therefore the roller has good rigidity. 
c）Roller supporting type: column
d) Electrical motor driving, the back/forward roller driven by chain, part of upper/lower rollers driven by gear
e) Adjust the screw bar manually to adjust the distance between upper/lower rollers for difference thickness of sheet, scale will be mounted in the machine.
f) Different thickness and yield stress will get different dimension tolerance.
g) The station consists of both right and left forming group being male side, female side.

4. Post cutting system 
a) Adopts post cutting, the cutting blade material is Cr12 with quenched treatment, after cutting, there is less material wasted. 
b) Adopts welded frame for good rigidity.
c) The power of cutting is provided by hydraulic station.