Precision Four Six Hi Reversing Cold Rolling Mill China Factory Suppliers
The Four/Six-Hi Reversing Cold Rolling Mill is a high-precision industrial solution engineered for superior metal sheet processing. By integrating advanced PLC-based automation and a robust mechanical structure, this mill ensures exceptional dimensional stability and surface quality, making it an essential asset for high-end metal tool and sheet manufacturing.
Designed for versatility and efficiency, the system features a sophisticated closed-loop control mechanism for tension and speed, coupled with a multi-layered Automatic Gauge Control (AGC) system. This synergy allows for precise thickness regulation and consistent material flow, significantly reducing waste and enhancing production throughput for demanding industrial applications.
Detailed Parameters
| Control System | PLC Automation & Process Control | Speed Regulation | Full Digital DC Speed Control |
|---|---|---|---|
| Tension Control | Closed-Loop Automatic Control | Gauge Control | Hydraulic AGC (Forward, Feedback, Mass Flow) |
| Cooling System | Roll Segmented Cooling Control | Work Roll Adjustment | Positive/Negative Bending Roll |
| Intermediate Roll | Positive Bending & Shift Control | Level Adjustment | Motor with Worm and Worm Gear |
| Roll Exchange | Quick Change for Work/Intermediate Rolls | Data Management | Integrated Collection, Display & Storage |
Key Advantages
Precision AGC
Comprehensive Hydraulic AGC including forward, feedback, and mass flow monitoring for ultra-precise thickness.
Rapid Changeover
Quick roll change mechanisms for both working and intermediate rolls to minimize downtime between batches.
Digital Synchronization
Full digital DC speed control and closed-loop tensioning ensure seamless production line synchronization.
Intelligent Monitoring
Equipped with a sophisticated data I/O system featuring real-time fault diagnosis and alarm notifications.
Advanced Bending
Positive/negative bending of working rolls and intermediate roll shifts for perfect flatness control.
Thermal Stability
Segmented cooling control prevents thermal deformation, ensuring consistent quality over long runs.
Product Gallery
Management Platforms
Process Automation
Centralized PLC control for entire production cycle management.
Speed & Tension
Integrated digital DC control for optimized material flow.
Diagnostic System
Real-time fault detection and alarm system for immediate response.
Gauge Monitoring
Dynamic AGC monitoring ensuring strict adherence to thickness specs.
Data Storage
Secure collection and storage of production data for quality auditing.
Roll Adjustment
Motorized worm gear systems for precise leveling adjustments.
Investment Return Comparison
| Metric | Standard Mill | Our Reversing Mill |
|---|---|---|
| Gauge Precision | Moderate | Ultra-High (Multi-AGC) |
| Roll Change Time | Manual / Slow | Quick-Change System |
| Automation Level | Basic | Full PLC/Digital DC |
| Waste Rate | High | Significantly Reduced |
| Maintenance Cost | Predictive Gap | Integrated Diagnostics |
Frequently Asked Questions
The Four/Six-Hi configuration provides superior control over roll bending and deflection, allowing for much tighter gauge tolerances and better flatness across the width of the strip compared to simpler mill designs.
By combining forward, feedback, and mass flow AGC, the system can anticipate and react to thickness variations in real-time, ensuring a consistent profile across the entire length of the rolled product.
Yes, the robust design and adjustable roll bending systems make it suitable for a wide range of metals used in the metal cutting and processing tool industry.
Our mill utilizes specialized quick-change couplings and motorized adjustment systems that eliminate the need for extensive manual alignment, drastically reducing downtime.
It applies targeted cooling to specific zones of the rolls, preventing uneven thermal expansion and ensuring the roll profile remains optimal during high-speed production.
The system monitors critical parameters in real-time and provides specific alarm codes, allowing operators to identify and fix issues quickly, preventing costly unplanned outages.
