CNC 4-Roll Plate Rolling Machine for Heavy-Duty Sheet Metal Bending
High-Precision CNC 4-Roll Double Pre-Bending: Features top and bottom pinch rolls to clamp plate edges securely, executing edge pre-bending and roll forming in a single continuous pass without turning the plate around.
Heavy-Duty Plate Capacity (6 mm – 20 mm): Engineered for medium and thick plate bending across standard widths of 1500 mm, 2000 mm, and 2500 mm, with minimum rolling diameter down to approx. 1.2x top roll diameter.
Overview & 4-Roll Double Pre-Bending Technology
The CNC 4-Roll Plate Rolling Machine is an industrial-grade plate bending solution designed for medium and heavy metal fabrication, pressure vessels, wind towers, large tanks, and pipeline fabrication. By employing a 4-roller geometry, the plate is continuously clamped between the top and bottom pinch rolls, preventing sheet slippage and delivering high rolling roundness.
Unlike conventional 3-roll benders, both leading and trailing edges can be pre-bent in a single feeding sequence without removing or turning the plate around. Driven by dedicated CNC numerical systems, operators achieve fast cycle times, minimal residual flat ends, and high geometric repeatability.
Precision Structural Features & Hydraulic Drive
- One-Pass Edge Pre-Bending: Straight edges are minimized by clamping the sheet between the central rolls while side rolls move upward along linear or planetary guides to pre-bend plate ends.
- Anti-Slip Hydraulic Pressure System: Constant hydraulic pressure clamping ensures thick carbon steel and stainless steel plates will not slip during initial pinch and continuous rolling[cite: 135].
- Independent Mobile CNC Console: Ergonomically positioned standalone pedestal on caster wheels[cite: 136] equipped with a digital touchscreen interface, joystick levers[cite: 136], and one-touch parameter recall[cite: 135].
- Hydraulic Drop-End Unloading: Integrated hydraulic swing-down end bearing releases and resets rapidly, allowing closed cylindrical parts to be extracted quickly.
Product Parameter Introduction & Specifications
Hydraulic Anti-Slip Clamping System, Motor Ratings & Plate Thickness Options[cite: 135]
Standard Technical Specifications (CNC 4-Roll Series)
| Parameter Item | Standard Specification Options | Operational Features & Notes |
|---|---|---|
| Plate Thickness (可加工板厚) | 6 mm / 12 mm / 20 mm[cite: 135] | Supports carbon steel, stainless steel, alloy plate, and aluminum[cite: 135] |
| Max. Rolling Width (最大卷板宽度) | 1500 mm / 2000 mm / 2500 mm[cite: 135] | Custom lengths up to 3000 mm and 4000 mm available upon request[cite: 135] |
| Min. Rolling Diameter (最小卷圆直径) | Approx. 1.2x Top Roll Diameter (约1.2倍辊径)[cite: 135] | Delivers tight radii with high circular consistency[cite: 135] |
| Main Motor Power (主电机功率) | 4 kW / 7.5 kW / 11 kW[cite: 135] | Matched according to plate thickness and roll width configurations[cite: 135] |
| Hydraulic System (液压系统) | Stable pressure holding, anti-slip heavy plate clamping[cite: 135] | Includes proportional valves, pressure gauges, and oil cooling circuit[cite: 135] |
| Control System (控制系统) | CNC operation with one-key parameter setting[cite: 135] | Multi-step programmable curves for circles, arcs, and cones[cite: 135] |
Machine Architecture & Operating Showcase
White-Blue Frame, Touchscreen Console & 4 Hardened Bending Rolls[cite: 136]
Heavy-Duty Hydraulic Drop-End Yoke & Cylinder Clamping Structure[cite: 135]
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