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China Suppliers Factory for Tandem Rolling Mill / Continuous Rolling Mill for High Precision Steel Strips

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PRODUCT OVERVIEW
This advanced equipment is designed for the reverse rolling of high-precision and high-quality mild carbon steel, stainless steel strips, and low alloy steel, making it an essential solution for manufacturers seeking efficiency and quality in their production processes.

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KEY COMPONENTS AND FEATURES
Our equipment comprises several vital components, including an Uncoiler, Hydraulic coil car and unloading car, a 5 Roll pinch flattener, and an entrance and exit platform. The rolling mill is customizable, allowing the user to select the number of mills for continuous rolling. Additional features include left and right recoilers, a joint gear box, a Hydraulic AGC and bending roll system, a powerful driving motor, an advanced electric control system, and comprehensive equipment and process lubrication systems. Trust in our China-based factory to provide top-notch machinery that meets the demands of modern steel production. Choose us as your reliable suppliers for superior rolling solutions.

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    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.

    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

    ★ Supports headless rolling technology to enhance 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 working principle of a continuous rolling mill?
    The continuous rolling mill connects multiple rolling mill stands in series and operates based on the equal second flow model, ensuring the volume flow of metal remains constant between each stand. Speed matching and tension control maintain strip thickness uniformity to a precision of ±5μm.
    Q What materials can the continuous rolling mill process?
    The continuous rolling mill is designed to process carbon steel and low alloy steel. It accommodates material thicknesses ranging from 2.0 to 3.0 mm and widths from 400 mm up to 750 mm depending on the mill model selected.
    Q What thickness accuracy can the cold continuous rolling mill achieve?
    The cold continuous rolling mill achieves a thickness accuracy of ±1μm. Using hot-rolled coils as raw materials and processing them through pickling and multi-stand rolling, it produces high surface quality products suitable for home appliance panels, car body panels, and similar applications.
    Q What stand configurations are supported?
    The continuous rolling mill supports four-high, six-high, and twelve-high stand configurations. This flexibility allows the equipment to be adapted to the specific rolling requirements of different product types and production volumes.
    Q What control systems are used in the continuous rolling mill?
    The mill uses a Siemens PLC for electric control and a Siemens 6RA70 DC speed regulator for precision speed management. The pressing method employs Hydraulic AGC (Automatic Gauge Control) to maintain consistent strip thickness throughout the rolling process.
    Q Can the rolling mill be customized according to specific production requirements?
    Yes. The models and parameters listed in the technical 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 variations in material width, rolling speed, pressing force, and other key parameters.