Precision Four SixHi Reversing Cold Rolling Mill Factory China Suppliers
The Four/Six-Hi Reversing Cold Rolling Mill is a high-precision industrial solution engineered for superior metal processing. By integrating advanced PLC-based process automation and full digital DC speed control, this system ensures exceptional stability and precise closed-loop control of tension and speed, catering to the most demanding requirements of the metal cutting and processing tool industry.
Designed for maximum operational efficiency, the mill features a comprehensive Automatic Gauge Control (AGC) suite, including forward, feedback, monitoring, and mass flow AGC. With innovative roll segmented cooling and flexible bending capabilities for working and intermediate rolls, it delivers unmatched surface quality and thickness uniformity for a wide range of industrial metal applications.
Detailed Parameters
| Automation System | Advanced PLC Process Control | Speed Control | Full Digital DC Closed-Loop |
|---|---|---|---|
| Gauge Control | Hydraulic AGC (Forward/Feedback) | Monitoring System | Mass Flow & Monitoring AGC |
| Cooling Method | Roll Segmented Cooling Control | Working Roll Tech | Positive/Negative Bending |
| Intermediate Roll | Positive Bending & Shift Control | Adjustment Mode | Motor-driven Worm & Gear |
| Roll Change | Quick Change System (W/I Rolls) | Data Management | Collection, Display & Storage |
Key Advantages
Precision AGC
Multi-dimensional Automatic Gauge Control ensures absolute thickness precision and consistency across the strip.
Rapid Roll Change
Optimized quick-change mechanisms for working and intermediate rolls significantly reduce downtime.
Digital Speed Control
Full digital DC control allows for seamless speed synchronization and precise tension management.
Smart Diagnostics
Integrated fault diagnosis and alarm systems allow for immediate detection and resolution of operational issues.
Thermal Optimization
Roll segmented cooling prevents overheating and extends the lifespan of the processing tools.
Automated Leveling
Motor-driven worm and gear systems provide rapid and accurate adjustment of rolling levels.
Product Gallery
Management Platforms
Production Tracking
Real-time monitoring of material flow and rolling throughput.
PLC Control Hub
Centralized automation interface for all process parameters.
Alarm Center
Instant fault notification and systematic diagnostic reporting.
Quality Analytics
Data-driven analysis of gauge control and surface quality.
Inventory Log
Digital storage and retrieval of rolling batch data.
Maintenance Planner
Scheduling and tracking of roll changes and gear lubrication.
Investment Return Comparison
| Metric | Standard Mill | Our Reversing Mill |
|---|---|---|
| Setup Time | High (Manual) | Ultra-Low (Quick Change) |
| Gauge Accuracy | ± 0.05mm | ± 0.005mm (Advanced AGC) |
| Energy Efficiency | Standard DC | Optimized Digital DC |
| Maintenance Cost | Frequent/Unplanned | Predictive/Scheduled |
| Product Yield | Moderate | Maximum (Reduced Scrap) |
Frequently Asked Questions
The Six-Hi configuration provides additional intermediate rolls, offering superior control over the roll gap and strip flatness compared to the Four-Hi version, making it ideal for thinner or more demanding materials.
Our Hydraulic AGC utilizes forward, feedback, and mass flow monitoring to make micro-adjustments to the roll gap in real-time, eliminating thickness deviations during the rolling process.
Yes, thanks to our mature PLC automation and flexible digital DC speed control, our mills can be integrated into most standard hot/cold rolling lines or used as part of a revamping service.
It is designed for various metals within the metal products industry, particularly for those requiring high precision, high surface quality, and strict gauge control.
The segmented cooling system applies targeted cooling to specific areas of the roll, preventing thermal crown development and ensuring uniform pressure across the strip width.
We provide a full suite of Revamping Services and Spare Parts, ensuring your mill continues to operate at peak efficiency with minimal downtime through our dedicated support system.









