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The Secret Behind the Popularity of Four-Roller CNC Plate Rolling Machines

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CNC plate rolling machines are essential equipment for shaping metal plates into cylindrical, arc, or other custom forms. Based on the principle of three-point bending, these machines enable continuous plastic deformation of metal sheets by adjusting their relative positions and rotational movements to achieve the desired shape. CNC plate rolling machines are indispensable in industries such as stainless steel manufacturing, decoration, packaging, metallurgy, aviation, automotive, shipbuilding, container production, and instrumentation.

Applications of Four-Roller CNC Plate Rolling Machines

Designed primarily for wind power tower fabrication, four-roller CNC plate rolling machines are widely used in the production and processing of various types of wind turbine towers. Their applications extend to industries such as shipbuilding, petrochemical, aerospace, hydropower, decoration, boiler manufacturing, and electrical engineering. These machines are capable of rolling metal plates into cylindrical, conical, and arc-shaped components.

Primapress Machinery’s four-roller CNC plate rolling machines utilize an advanced roller arrangement to significantly reduce residual straight edges, lower production costs, and enhance efficiency.

How Four-Roller CNC Plate Rolling Machines Work

During the rolling process, the upper roller remains fixed while the lower roller moves vertically to clamp the steel plate. The side rollers then move in a linear or arc path toward the upper roller to adjust the curvature radius of the rolled component. While both four-roller and three-roller CNC plate rolling machines operate on the same three-point bending principle, the four-roller machine offers superior pre-bending and roundness correction. Additionally, four-roller CNC plate rolling machines can process materials twice as efficiently as three-roller machines.

cnc plate rolling machine

Structure and Features of Servo CNC Four-Roller Plate Rolling Machines

The servo-controlled CNC four-roller plate rolling machine adopts a four-roller design, with the upper roller as the main drive component. The output gear of the reducer meshes with the upper roller gear to provide torque for rolling. The lower roller performs vertical lifting movements driven by hydraulic cylinders, ensuring firm clamping of the metal sheet.

On both sides of the lower roller, side rollers are positioned along the machine frame’s guide rails, moving in a tilting motion via screw rod, nut, worm, and worm gear transmission. The advantage of this design is that both pre-bending and rolling can be accomplished on a single machine, increasing operational efficiency and precision.

How to Choose the Right Four-Roller CNC Plate Rolling Machine

Primapress offers a variety of plate rolling machines, including fully automated four-roller machines, hydraulic three-roller machines, and CNC two-roller machines, all of which can be customized to meet specific customer requirements.

Customers often ask about the differences between arc-type and inclined-type four-roller plate rolling machines. The primary distinction lies in the movement method of the side rollers:

  • Arc-Type Four-Roller Machines: The side rollers move in a planetary arc motion driven by hydraulic cylinders and leverage mechanisms.

     

  •  Inclined-Type Four-Roller Machines: The side rollers move in a linear reciprocating motion along linear rails, driven by hydraulic cylinders.

Recommended CNC Plate Rolling Machine Selection

  • For plate thickness T ≤ 30mm, an arc-type four-roller machine is recommended.
  • For plate thickness 30mm < T < 60mm, both arc-type and inclined-type four-roller machines are suitable.
  • For plate thickness T ≥ 60mm, an inclined-type four-roller machine is preferred.

Primapress Machinery Equipment Co., Ltd. specializes in the production of fully automated four-roller plate rolling machines, hydraulic three-roller plate rolling machines, and CNC two-roller plate rolling machines. Customers are welcome to consult for more details.

cnc plate rolling machine

Fully Automated Four-Roller Plate Rolling Production Line

The fully automated four-roller plate rolling production line is an advanced metal rolling system based on the four-roller plate rolling machine. This production line integrates various automated processes, including:

  • Automatic material separation
  • Automatic material pickup
  • Automatic loading and alignment
  • Automatic feeding
  • Automated rolling and discharge

This high-level automation ensures product quality, improves production efficiency, reduces production costs, and minimizes labor intensity. It is widely used in the mass production of thin-walled tubes, automotive fuel drums, ventilation ducts, chimneys, filters, solar water heaters, exhaust pipes, and liquid/gas storage tanks.

Advantages of the Fully Automated CNC Plate Rolling Production Line

Automated Material Separation Platform

Equipped with an automatic sheet separator to prevent multiple sheets from sticking together during the pickup process.

Automated Material Pickup System

Utilizes vacuum suction cups with high suction power and spring-loaded buffering to ensure stable and efficient material handling. Adjustable suction cup brackets accommodate different workpiece sizes for optimal performance.

Automated Material Pickup System

Automated Alignment and Feeding System

Features a dual-side movement alignment mechanism with multiple rolling alignment wheels, ensuring precise positioning of sheet metal before rolling.

Four-Roller Plate Rolling Machine

Manufactured by Primapress, providing reliable and high-performance metal rolling operations.

Automated Discharge System

Automatically ejects the finished workpiece onto an external platform after rolling, streamlining the production process.

cnc plate rolling machine

With its advanced automation, superior precision, and high efficiency, the fully automated four-roller plate rolling production line is an ideal choice for industries requiring rapid and large-scale metal sheet rolling.

For inquiries about our four-roller CNC plate rolling machines and automated production lines, feel free to contact Primapress today!

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