Manufacturing Process

1. Rolling Process:

Coiled plate (raw material) → Longitudinal shearing → Automatic punching → Roll forming → Fixed length setting → Automatic tracking flying saw cutting → End flattening → CO₂ shielded welding → Grinding and deburring → Black parts → Surface treatment.

2. Automatic Punching:

Equipped with a fully automatic continuous punching production line, which is used to punch holes on column profiles before rolling. The hole spacing accuracy can reach 0.02mm, and the total cumulative error of the column length is no more than 2mm.

3. Cold Roll Forming:

Shelf columns and various beams are rolled by their respective automatic cold roll forming units. They are automatically positioned and cut according to the required length, with a length dimension error of no more than 1mm.

4. Welding:

All welding operations are performed using CO₂ shielded welding machines, ensuring the quality of weld seams as well as their smoothness and appearance.

5. Columns:

• Material: Cold-rolled steel plate;
• Color: Blue (customizable according to customer requirements);
• Columns are connected to cross braces and diagonal braces via galvanized bolts;
• When fully loaded, the maximum deflection of the column is no more than 1/1000H (H = column height);
• The bottom of heavy-duty shelf columns is equipped with base plates, and expansion bolts are used to connect the base plates to the ground to ensure the stability of the shelf;
• The total height of shelf columns is determined according to design requirements; the column hole spacing is 50mm or 75mm, the layer height can be adjusted freely, and the cumulative error of hole spacing is ±1mm;
• Convex columns are adopted, with optimized cross-section and strong load-bearing capacity. (Columns with appropriate load-bearing capacity are selected according to design requirements; commonly used columns: medium-duty columns 55*45, heavy-duty columns 90*65).

6. Beams:

• Material: Cold-rolled steel plate;
• Color: Orange red (customizable according to customer requirements);
• Each beam is equipped with a safety pin to increase the safety factor;
• When fully loaded, the maximum deflection of the beam is no more than 1/200L (L = beam length);
• Beams are connected to columns using hanging teeth, adopting a mosaic-type gapless insertion structure, which features large contact area and high reliability;
• Clamp-type beams or P-type beams are adopted, with optimized cross-section, strong bending resistance and load-bearing capacity. (Beams are selected based on span and load-bearing requirements; conventional sizes: P-type beams 60*40, 80*40; clamp-type beams 80*45, 100*45, 120*45, 140*45).