China Continuous Rolling Mill Suppliers - High Precision Tandem Rolling Mill Factory for Carbon and Stainless Steel
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.
⚙️ Four-High Configuration
⚙️ Six-High Configuration
⚙️ Twelve-High Configuration
🎯 Accuracy ±5μm
🏭 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.
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
Supporting 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)
Q1
What is the working principle of a continuous rolling mill?
A continuous rolling mill connects multiple rolling stands in series and operates on the equal second flow model, which ensures that the volume flow of metal between each stand remains constant. Speed matching and tension control are used to maintain uniform strip thickness with an accuracy of ±5μm throughout the rolling process.
Q2
What materials can be processed by this continuous rolling mill?
The continuous rolling mill is designed to process carbon steel and low alloy steel. It handles input material thicknesses ranging from 2.0 to 3.0 mm and produces finished strip thicknesses as low as 0.40 mm, making it ideal for high-precision flat-rolled products.
Q3
What stand configurations are available for this rolling mill?
The rolling mill supports multiple stand configurations including four-high, six-high, and twelve-high arrangements. The standard configuration includes 5 mill units per line, with the appropriate configuration selected based on product requirements and material specifications.
Q4
What control systems are used in these rolling mills?
The rolling mills are equipped with Siemens 6RA70 DC speed regulators and Siemens PLC electric control systems. The pressing method employs Hydraulic AGC (Automatic Gauge Control), ensuring high-precision thickness control and stable production across all mill models (650, 750, 850).
Q5
What is the typical process flow for a cold continuous rolling mill?
The standard process flow for a cold continuous rolling mill is: Hot Coil Pickling → Multi-Stand Rolling → Annealing → Tempering. The system also supports headless rolling technology to enhance production continuity and improve overall yield. The finished products achieve a thickness accuracy of ±1μm, suitable for home appliance panels and automotive body components.
Q6
Can the rolling mill parameters be customized according to specific requirements?
Yes. All model specifications and technical parameters listed in the table are for reference only. The design and manufacturing of the continuous rolling mill can be fully customized and tailor-made based on the user's specific production requirements, including material width, rolling speed, pressing force, and roll dimensions.