W12 Four roller plate rolling machine

High-Performance CNC 4-Roll Plate Rolling Machine

The Ultimate Precision Solution for One-Pass Metal Bending

Our CNC 4-Roll Plate Rolling Machine is the industry’s most efficient and accurate solution for plate bending. Designed for high-volume production, this machine allows for pre-bending and rolling in a single pass without removing or flipping the plate. Whether you are producing cylinders, cones, or complex arcs, our 4-roll system delivers superior circularity and exceptional productivity with minimal manual intervention.

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Four roller plate rolling machine

Includes the following features and settings

High-Precision Pre-Bending

One-Pass Circular Rolling

Conical Bending Capability

Automatic Plate Squaring

Standard Equipment

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  • Main Rollers 42CrMo Alloy Forged Steel
  • CNC System SIEMENS
  • Hydraulic System Rexroth (Germany) / Yuken (Japan)
  • Main Motor Siemens (Germany) / ABB
  • Sealing System SKF / Parker / NOK
  • Electrical Components Schneider (France) / Omron
  • Bearings FAG / SKF / Heavy-duty Spherical
  • Lubrication System Automatic Centralized Lubrication

CNC Control System

8 Key Advantages of the SIEMENS CNC System

  • Global Network & Service Stability
  • Micron-Level Control & High Precision
  • Intuitive Human-Machine Interface
  • Exceptional Durability in Harsh Environments
  • High-Speed Data Processing
  • Industry 4.0 & Digital Integration
  • Integrated Safety Logic
  • Advanced Energy Efficiency

How It Works

The 4-Roll Plate Rolling Process

  • Clamping & Squaring: The plate is gripped between the Top and Bottom rollers. A Side Roller acts as a back-gauge to instantly square the plate for perfect parallelism.
  • Pre-Bending: While clamped, a Side Roller moves upward to pre-bend the leading edge. This ensures zero flat ends and perfect circularity from the very start.
  • One-Pass Rolling: The machine rotates the rollers to form the cylinder in one continuous motion. The plate remains clamped, allowing for the entire process—including final edge pre-bending—to be completed in a single cycle.
  • Easy Discharge: Once formed, the Hydraulic Drop-End opens automatically, allowing the finished cylinder to be removed quickly and safely.

Optional Support Systems for Oversized Rolling

Vertical Top Support: Designed for large-diameter cylinders, it holds the plate from above to prevent collapsing under its own weight, ensuring perfect circularity.

Lateral Side Supports: Stabilizes extra-wide or thin plates from both sides during the rolling process, preventing sagging and maintaining perfect alignment.

Motorized Feeding Table: Automates smooth material entry and automatic squaring, significantly boosting productivity while reducing labor risks.