Shelf Panel Roll Forming Machine

Main Components of the Production Line

Step-by-Step Working Process

The typical workflow of a shelf board roll forming machine follows the sequence illustrated below:

Decoiling → Leveling → Servo Feeding → Punching → Roll Forming → Cutting → Discharging

Step 1: Decoiling (Uncoiling) The steel coil is loaded onto the decoiler using a feeding trolley or overhead crane. The machine unwinds the coil and feeds the leading edge into the leveler .

Step 2: Leveling (Straightening) The metal strip passes through a series of leveling rollers that flatten the material, removing curvature and twist. This ensures dimensional stability for downstream processes .

Step 3: Servo Feeding A servo-driven feeder grips the leveled strip and advances it precisely to the punching station. The servo motor allows for accurate length measurement and positioning .

Step 4: Punching (Pre-Punching or Inline Punching) The material enters a hydraulic or mechanical punching press. Holes, slots, or notches are punched according to the shelf design. This can be done:

Pre-punching: Pause-to-punch before roll forming

Tracking punching: Continuous punching without stopping

The punching mold is typically made of Cr12MoV or Cr12 steel, heat-treated to HRC 58–62 for durability .

Step 5: Roll Forming (Cold Forming)

The punched strip passes through a series of roller stations (typically 12–24 stations). Each station gradually bends the metal until the final profile is achieved. The rollers are precision-machined from GCr15 or Cr12 steel, hardened and chrome-plated for wear resistance .

Forming Speed: 6–22 meters per minute (depending on material thickness and hole pattern)

Width Adjustment: Many modern machines offer automatic width adjustment via electric motors, allowing different panel sizes without manual roller changes

Step 6: Cutting (Cut-to-Length)

Once the formed profile reaches the preset length, the cutting unit activates. Two cutting methods are common:

Hydraulic Cutting (Pause-to-Cut): The line pauses briefly while the blade cuts

Flying/Tracking Cutting: The cutting die moves with the material, allowing non-stop production

Cutting blades are made of hardened Cr12 or SKD11 steel .

Step 7: Discharging & Stacking

Finished shelf panels are discharged onto a run-out table. Some advanced lines include an automatic stacker that organizes panels for packaging

Applications of Finished Shelf Panels

• Supermarket shelving and gondola displays

• Warehouse pallet racking systems

• Industrial storage and logistics equipment

• Home storage and garage shelving units