Four Roll Plate Bending Machine 1

ZhongTie

Four-Roll Plate Bending Machine

ZhongTie

Four-Roll Plate Bending Machine

Automatic Feeding & Pre-Bending

Productivity Boost up to 40%

High-Efficiency Plate Rolling with Precision Automation
Accurate. Productive. Automation-Ready.

Zhongtie Four-Roller Plate Rolling Machine is designed for superior accuracy, efficiency, and automation. Its four-roller design enables automatic feeding, precise positioning, and effortless pre-bending, improving productivity by up to 40%.

Equipped with a servo-hydraulic drive system, CNC control, and synchronous motion technology, it ensures consistent results with reduced labor requirements. With high-strength rollers and CE-compliant safety features, it is the perfect choice for manufacturers seeking fast, accurate, and reliable plate forming under demanding workloads.

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Standard Equipment

  • Servo hydraulic drive system
  • High-performance CNC system
  • High-intensity rollers (heat treatment, tempering, and precision grinding)
  • Equipped with emergency stop buttons, safety interlocking circuits, and protective covers.
All-new automation system

Intelligent systems

ZHONGTIE plate rolling machine control system is further upgraded on the basis of the Siemens system. It features an intelligent touch screen and an additional compensation system. During plate rolling, it helps cope with various issues such as notches on rolled workpieces and undetected material springback. The system supports auxiliary and automatic calculation to apply corresponding compensation.

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    Plate Support Abd Bracket

    Auxiliary bracket

    The side and top support arms prevent large-sized plates from deflecting during rolling. Automatic feeding can be added to facilitate tapered rolling. Suitable for oversized plates, reducing human error.

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      Automated Factory

      Customized automation solution

      Robotic arms or conveyor systems for automated sheet metal handling and integration with welding lines

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        Working Roller

        42CrMo Material

        Made of high-strength steel, forged and heat-treated to achieve HB240-300 and HRC47-58 hardness, compliant with JB/ZG4289-86 standards, ensuring long service life and rolling precision.

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          Electrical Components

          SIEMENS System & Performance

          Utilizes Germany SIEMENS electrical components and motor for high reliability and stability. The rational wiring design and integrated hydraulic valve module minimize failure rates, ensure smooth and precise operation, provide effective protection, and deliver powerful force with low noise.

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            Roller Rotation

            Direct Drive System

            The upper drive roller is powered by an independent hydraulic motor directly coupled with a high-power planetary gearbox, eliminating intermediate gears for maximum energy efficiency. The system features an immediate brake for precise stopping during pre-bending operations.

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              Hydraulic System

              Precision & Reliability

              The system employs dual relief valves per circuit (25 MPa for main cylinders, 16 MPa for others) and high-precision sensors to ensure synchronized roll movement and precise pressure control. It features unique pre-discharge technology to minimize hydraulic shock, utilizes premium YUKEN and Nok components for stability, and includes comprehensive detection points for easy maintenance and automated fault warning.

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                General FAQs

                A Four-Roll Plate Bending Machine is designed to roll metal sheets into cylinders or cones in one operation. The top roll acts as a drive roll, while the two side rolls and the lower roll perform precise positioning and pre-bending.

                It offers higher efficiency, better pre-bending performance, and easier operation. The plate can be clamped and pre-bent at both ends without turning, which improves accuracy and productivity.

                It can bend mild steel, stainless steel, aluminum, and copper sheets. Standard models cover 3–60 mm thickness and up to 3000–4000 mm width, depending on machine capacity.

                The machine uses a hydraulic synchronization system, precision rollers, and digital readouts for roll positions. Safety features include emergency stop buttons, overload protection, and side guard rails.

                We provide factory testing before delivery, a 12-month warranty, lifetime technical support, and online or on-site training. Spare parts are available for long-term service support.

                The four-roller bending machine is more suitable for workpieces that require precision, ideal for the mass production of single-type workpieces, and offers higher efficiency.

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