To making a completed storage rack shelf, they are need 4 machines to completed. Automatic roll forming line→computer fixed-length cutting→carbon dioxide protection welding→electrostatic spraying Surface treatment Electrostatic spraying with epoxy resin, the coating thickness is 60~80 microns; Degreasing→rinsing→acid washing and rusting→flushing→phosphating→high pressure washing→drying→electrostatic spraying→high temperature curing; For surface process and cutting, welding all can be same series machine for different storage shelves types. But different rack need different roll forming machine.
For different rack shelf unit profile & beam & panel & uprign using different roll forming machine. Light rack shelf roll forming machine is very cheaper, and heavy duty rack shelf roll forming machine require very good roll material such as GCr15 or Cr12.
