how many roll forming stations needed to form the 3mm c purlin

The number of roll forming stations required to form a 3mm C purlin will depend on the specific design and requirements of the purlin. However, a typical roll forming process for a 3mm C purlin might involve the following number of stations:

1. Uncoiler station: This station is used to hold the raw material (in this case, a coil of 3mm thick steel) and feed it into the roll forming machine.
2. Straightening station: This station removes any bends or kinks in the material before it enters the roll forming process.
3. Pre-punching station: This station may be required to punch holes or slots in the material before it is formed into the C purlin.
4. Forming stations: These stations gradually shape the material into the desired profile for the C purlin. The number of forming stations required will depend on the complexity of the profile and the necessary degree of precision.
5. Post-cutting station: This station may be required to cut the C purlin to the desired length before or after it is formed.

Based on this typical roll forming process, a 3mm C purlin might require 10-15 roll forming stations, although the exact number will depend on the specific design and requirements of the purlin.