Typically, cold-rolled carbon steel sheets are used as the base material due to their durability and cost-effectiveness.
Other materials like aluminium (for lightweight and moderately corrosive environments) and stainless steel (for high corrosion resistance) can also be used depending on the application.
2. Roll Forming
The prepared metal strip is fed into a roll forming machine.
This machine consists of a series of roller dies.
As the metal strip passes through these dies, it is progressively bent and shaped into the desired DIN rail profile (e.g., Top Hat, C-section, G-section).
Modern production lines often include inline processes for cleaning, straightening, and degreasing the metal strip before forming.
3. Surface Treatment
After forming, the DIN rails undergo surface treatment to enhance their durability and corrosion resistance.
Common surface treatments include zinc plating or chromate bright finishing.
4. Cutting and Punching
The continuously formed rail is then cut into specified lengths using a cutting machine.
Mounting holes or slots, as per the DIN rail standard and customer requirements, are punched into the rails at this stage. This can be done inline or as a separate process.
5. Quality Control
Inspection units are used to check the manufactured rails against quality standards.
This ensures dimensional accuracy and the quality of the surface finish.
6. Marking and Packaging (Optional)
Some manufacturers may apply printed markings or labels for identification purposes.
Finally, the completed DIN rails are stacked and packaged for shipment.