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    4 HI REVERSING COLD ROLLING MILL

    4 HI REVERSING COLD ROLLING MILL
    6 Hi Reversing Cold Rolling Mill

    6 Hi Reversing Cold Rolling Mill
    Tamdem Rolling Mill / Continuous Rolling Mill

    Tamdem Rolling Mill / Continuous Rolling Mill
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    Skin Pass Mill
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    Slitting Round Blade/ Slitting Disc Knife

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    Tamdem Rolling Mill Continuous Rolling Mill (1).jpg
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    Tamdem Rolling Mill Continuous Rolling Mill (1).jpg
    Tamdem Rolling Mill Continuous Rolling Mill (2).JPG
    Tamdem Rolling Mill Continuous Rolling Mill (3).jpg
    Tamdem Rolling Mill Continuous Rolling Mill (4).JPG

    Tandem Rolling Mill / Continuous Rolling Mill - High Precision Steel Solutions from China Suppliers and Factory

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    MAIN FUNCTION OF THE EQUIPMENT
    This advanced equipment is designed for the reverse rolling of high precision, high-quality carbon steel, stainless steel strips, and low alloy steel. Ideal for factories seeking reliable performance, it ensures optimal results in steel processing.

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    COMPONENTS AND FEATURES OF THE EQUIPMENT
    Our equipment includes an uncoiler, hydraulic coil car, unloading car, 5-roll pinch flattener, as well as entrance and exit platforms. The rolling mill, customizable in the number of stands for continuous rolling, is complemented by left and right recoil systems, a joint gearbox, hydraulic AGC, and a bending roll system. The setup is powered by a high-performance driving motor and an efficient electric control system, paired with both equipment lubrication and process lubrication systems. As a leading China supplier and factory, we prioritize quality and innovation in our product offerings.

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      Product Details

      Product Introduction

      The continuous rolling mill achieves continuous plastic deformation of metal materials by connecting multiple rolling mills in series. Its core principle is based on the equal second flow model, meaning the volume flow of metal between each stand remains constant. Uniformity of the strip thickness (with an accuracy of ±5μm) is ensured through speed matching and tension control. The equipment consists of reducers, motors, universal joint shafts, roller systems, etc., and supports four-high, six-high or twelve-high stand configurations, suitable for the production of high-precision sheet and strip materials.

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      Core Principle Equal second flow model — constant volume flow between each stand
      📏
      Thickness Accuracy Strip thickness uniformity up to ±5μm
      🏗️
      Stand Configurations Four-high, six-high or twelve-high configurations supported

      Cold continuous rolling mill: Using hot-rolled coils as raw materials, after pickling, they are rolled through multiple stands, with thickness accuracy reaching ±1μm. It is used for high surface quality products such as home appliance panels and car bodies.

      ▶ Process Flow
      Hot Coil Pickling → Multi-Stand Rolling → Annealing → Tempering → Headless Rolling Technology (enhanced continuity)

      Technical Parameter Table

      Mill Model / Technical Parameter 650 750 850
      Material Carbon steel and low alloy steel Carbon steel and low alloy steel Carbon steel and low alloy steel
      Material Thickness (mm) 2.0~3.0 2.0~3.0 2.0~3.0
      Material Width (mm) 400~520 500~650 600~750
      Finish Thickness (mm) 0.6~0.40 0.6~0.40 0.6~0.40
      Pressing Force (KN) 5000 6000 7000
      Support Roll Specification (mm) Φ520×550 Φ600×700 Φ700×820
      Working Roll Specification (mm) Φ175×600 Φ200×750 Φ240×850
      Mill Units 5 sets units 5 sets units 5 sets units
      Driving Method Working roll driving Working roll driving Working roll driving
      Main Motor DC motor DC motor DC motor
      Speed Reducer Joint gear box Joint gear box Joint gear box
      Uncoiler (Specifications) Φ610×600 Φ610×750 Φ610×850
      Recoiler (Specifications) Φ508×600 Φ508×750 Φ508×850
      Rolling Speed (m/min) 360 420 480
      Uncoiler Loop Disc loop or ground loop Disc loop or ground loop Disc loop or ground loop
      Recoiler Tension (KN) 25 30 35
      Pressing Method Hydraulic AGC Hydraulic AGC Hydraulic AGC
      DC Speed Regulator Siemens 6RA70 Siemens 6RA70 Siemens 6RA70
      Electric Control Siemens PLC Siemens PLC Siemens PLC

      📌 Remark: The model and parameters shown in this table are for reference only. The design and production can be tailor-made according to user's requirements.

      Frequently Asked Questions (FAQ)

      Q
      What is the core working principle of the continuous rolling mill?
      A
      The continuous rolling mill operates on the equal second flow model, which ensures that the volume flow of metal passing through each stand remains constant. Speed matching and tension control are used to maintain strip thickness uniformity with an accuracy of ±5μm across all stands.
      Q
      What materials are compatible with the continuous rolling mill?
      A
      The rolling mills (models 650, 750, and 850) are all designed to process carbon steel and low alloy steel. The input material thickness ranges from 2.0 to 3.0mm, and the finished product thickness can be reduced to as thin as 0.40mm.
      Q
      What stand configurations are available, and which applications are they suited for?
      A
      The mill supports four-high, six-high, and twelve-high stand configurations. These are suitable for producing high-precision sheet and strip materials, including home appliance panels, automotive body panels, and other products that demand high surface quality and tight dimensional tolerances.
      Q
      What control system and electrical components are used in the rolling mill?
      A
      The mills are equipped with Siemens 6RA70 DC speed regulators and Siemens PLC electric control systems, ensuring precise speed management and automated process control. Thickness pressing is handled by a Hydraulic AGC (Automatic Gauge Control) system for consistent output quality.
      Q
      Can the equipment be customized to meet specific production requirements?
      A
      Yes. The models and parameters listed in the technical specification table are for reference only. The design and production of the continuous rolling mill can be fully tailor-made to meet individual user requirements, including custom strip widths, rolling speeds, pressing forces, and stand configurations.
      Q
      What is the difference between cold continuous rolling and conventional hot rolling?
      A
      Cold continuous rolling uses hot-rolled coils as raw materials, which are first pickled and then processed through multiple rolling stands at room temperature. This process achieves superior surface quality and dimensional precision (±1μm) compared to hot rolling, making cold-rolled products ideal for demanding applications such as automotive body parts and home appliance panels.