High-Precision CNC 4-Roll Plate Roller: Achieving Perfect Circularity in One Pass
Discover how SLM 4-roll CNC technology eliminates flat ends and achieves ±0.5mm tolerance. Featuring a full-load test case of 20mm Q355 steel rolled to a 958mm diameter.
The Precision of 4-Roll CNC Rolling
One-Pass Forming | Zero Flat Ends | Industry 4.0 Ready
In modern metal fabrication, the gap between "good" and "perfect" is measured in millimeters. For industries requiring high-speed production and extreme circularity, the 4-Roll CNC Plate Rolling Machine has become the definitive solution.
Pre-Bending Mastery
By clamping the plate between the top and bottom rolls, the 4-roll system achieves the shortest possible flat ends (1.5x plate thickness) in a single feed.
CNC Automation
Our integrated CNC system manages side roll positioning and synchronization, allowing for complex multi-radius shapes with push-button simplicity.
Full-Load Performance Case: 30x3200 Series
To demonstrate the stability of SLM engineering, we recently conducted a maximum capacity test on our 30x3200 4-Roll model.
| Material Type: | Q355 High-Tensile Steel |
| Plate Thickness: | 20mm (Heavy Gauge) |
| Target Inner Diameter: | 958 mm |
| Accuracy Achieved: | Standard-compliant Circularity & Straightness |
The result was a perfectly formed cylinder with zero deformation. This efficiency makes the 4-roll system the preferred choice for pressure vessel shells and precision piping where welding prep time must be minimized.
"For rolling widths exceeding 3000mm, we integrate Hydraulic Support Rollers. This not only assists in forming but actively compensates for top-roll deflection, ensuring the cylinder remains straight across its entire length."
