1150mm 6 Hi Reversing Cold Rolling Mill Unit
Brand name: HANI
Packing Details : Wooden box with fumigation or Wooden Fram or Steel Frame
Delivery Details: 30~60days or Based on the quantity
Shipping: Sea freight、Land freight、Air freight
HANI focuses on cold rolling mill equipment technology, safeguarding your production.
Product Details
In today’s high-demand metal manufacturing landscape, efficiency, precision, and sustainability are non-negotiable. The 1150mm 6 Hi Reversing Cold Rolling Mill Unit, engineered by industry leaders like HANI, represents the pinnacle of cold rolling technology—delivering unmatched control over thickness, surface finish, and mechanical properties across a wide range of materials including stainless steel, carbon steel, aluminum, copper, and specialty alloys.
Designed for both batch and semi-continuous operations, this 6 hi reversing cold rolling mill combines advanced mechanical design with intelligent automation to meet the rigorous standards of modern industrial production. Whether you’re producing ultra-thin foils for electronics or high-strength strips for automotive applications, this unit ensures consistent quality, minimal waste, and maximum throughput.
Why Choose a 6 Hi Reversing Cold Rolling Mill?
Unlike traditional 4-high mills, the 6 hi reversing cold rolling mill configuration adds two backup rolls that significantly enhance roll stability and reduce deflection during high-pressure rolling. This architecture enables:
- Superior flatness control
- Tighter gauge tolerances (±0.002mm achievable)
- Reduced edge drop and center buckle
- Extended work roll life due to optimized load distribution
- Greater flexibility in processing hard-to-roll materials
The 1150mm 6 hi reversing cold rolling mill unit from HANI integrates decades of metallurgical insight with cutting-edge engineering, making it ideal for precision strip producers who demand repeatability, reliability, and ROI.
Key Technical Specifications
| Parameter | Specification |
|---|---|
| Rolling Width | Up to 1150 mm |
| Material Thickness (Entry) | 0.8 – 6.0 mm |
| Material Thickness (Exit) | 0.1 – 3.0 mm (multi-pass capable) |
| Max Rolling Speed | 800 m/min (adjustable based on material) |
| Work Roll Diameter | Φ180 – Φ220 mm |
| Intermediate Roll Diameter | Φ280 – Φ320 mm |
| Backup Roll Diameter | Φ700 – Φ850 mm |
| Main Motor Power | 1600 – 2500 kW (AC vector control) |
| Hydraulic System Pressure | 21 MPa |
| Automatic Gauge Control (AGC) | Yes (with X-ray or laser thickness measurement) |
| Flatness Control System | Integrated hydraulic bending + roll shifting |
| Coil Weight Capacity | Up to 25 tons |
| Automation Level | PLC + HMI + optional AI-based process optimization |
This 6 hi reversing cold rolling mill is fully customizable—HANI offers tailored solutions based on your production volume, material mix, and quality targets.
Advanced Features That Set This Mill Apart
1. Intelligent Process Control
Equipped with a real-time monitoring system, the 1150mm 6 hi reversing cold rolling mill unit uses closed-loop feedback from thickness gauges, tension meters, and temperature sensors to auto-adjust roll gap, speed, and tension—ensuring consistent output even during long production runs.
2. Eco-Friendly Design
HANI prioritizes sustainability. This 6 hi reversing cold rolling mill features regenerative braking, energy-efficient motors, and optional oil-mist lubrication systems that reduce consumption by up to 30% compared to conventional units.
3. Modular Construction
The mill’s modular frame allows for future upgrades—such as adding a skin-pass section or integrating with an inline annealing line—without major downtime or reconstruction.
4. Operator Safety & Ergonomics
Full guarding, emergency stop circuits, and remote diagnostics ensure compliance with ISO and CE safety standards. Maintenance access points are strategically placed for quick roll changes and service.
Ideal Applications
- Stainless Steel Strips: For kitchenware, medical devices, and architectural panels
- Aluminum Foil Stock: Battery foils, packaging, and heat exchangers
- Copper & Brass Strips: Electrical connectors, terminals, and decorative trims
- High-Strength Low-Alloy (HSLA) Steels: Automotive structural components
- Nickel Alloys & Titanium: Aerospace and chemical processing industries
With its ability to handle both soft and ultra-hard materials, this 6 hi reversing cold rolling mill is a true workhorse for diversified metal processors.
Production Workflow Integration
The 1150mm 6 hi reversing cold rolling mill unit seamlessly integrates into existing lines:
- Uncoiler → Entry Accumulator → Mill Stand → Exit Accumulator → Recoiler
- Optional inline tension leveler for improved flatness
- Compatible with offline or online degreasing lines (e.g., HANI’s 1450 degreasing line)
- Data connectivity via Industry 4.0 protocols (OPC UA, MQTT) for MES/ERP integration
HANI provides full turnkey solutions—including foundation design, commissioning, operator training, and after-sales support—ensuring rapid ROI and minimal ramp-up time.
Comparative Advantage: 6-Hi vs. 4-Hi Mills
| Feature | 4-Hi Mill | 6-Hi Reversing Cold Rolling Mill |
|---|---|---|
| Roll Deflection Control | Moderate | Excellent (via intermediate rolls) |
| Minimum Achievable Thickness | ~0.3 mm | Down to 0.1 mm |
| Flatness Accuracy | ±15 I-Units | ±5 I-Units or better |
| Work Roll Wear | Higher | Reduced by 25–40% |
| Material Flexibility | Limited for hard alloys | Broad (including superalloys) |
| Automation Compatibility | Basic | Full digital twin & predictive maintenance ready |
For high-value, precision strip production, the 6 hi reversing cold rolling mill is not just an upgrade—it’s a necessity.
Frequently Asked Questions (FAQ)
Q1: What materials can be processed on the 1150mm 6 hi reversing cold rolling mill?
A: It handles stainless steel (304, 316, 430), carbon steel, aluminum (1xxx–8xxx series), copper, brass, nickel alloys (Inconel, Monel), and titanium. Hardness up to 500 HV is supported with proper roll selection.
Q2: How many passes are typically needed to achieve final thickness?
A: Depends on reduction ratio. For example, reducing from 2.0 mm to 0.3 mm may require 3–5 passes with intermediate annealing if needed. The 6 hi reversing cold rolling mill’s precise AGC minimizes pass count.
Q3: Does HANI provide installation and training?
A: Yes. HANI offers global on-site installation, commissioning, and comprehensive operator/maintenance training—typically 2–3 weeks depending on complexity.
Q4: Can the mill be upgraded later for higher automation?
A: Absolutely. The control system is scalable—from basic PLC to full AI-driven optimization with cloud-based analytics.
Q5: What is the typical delivery time?
A: 6–9 months from order confirmation, depending on customization level.
Q6: Is spare parts availability guaranteed?
A: HANI maintains a global inventory of critical components (rolls, bearings, sensors) and offers 24/7 technical support.
Why HANI Stands Out in Cold Rolling Technology
As a trusted name in metallurgical machinery, HANI has delivered over 200 cold rolling lines worldwide. Their 1150mm 6 hi reversing cold rolling mill unit embodies their philosophy: “Precision Engineering for Sustainable Metal Processing.” Backed by R&D centers in China and Europe, HANI continuously refines mill dynamics, control algorithms, and energy recovery systems—keeping clients ahead of regulatory and market demands.
Whether you’re expanding capacity or replacing aging equipment, choosing a 6 hi reversing cold rolling mill from HANI means investing in decades of field-proven innovation.
Final Thoughts
The 1150mm 6 hi reversing cold rolling mill unit isn’t just another piece of equipment—it’s a strategic asset that enhances product quality, reduces operational costs, and future-proofs your production line. With its robust construction, intelligent controls, and versatility across metals, this 6 hi reversing cold rolling mill delivers exceptional value for specialty strip producers, service centers, and OEMs alike.
For engineers and plant managers seeking a reliable, high-performance solution that balances output with precision, the answer is clear: specify the 6 hi reversing cold rolling mill from HANI—where metal meets mastery.
HANI is one of China’s leading professional cold rolling mill manufacturers, providing complete cold rolling systems to steel companies worldwide. HANI focuses on designing and manufacturing integrated cold rolling solutions that meet the industry’s highest standards of precision, efficiency, and durability. Our engineering expertise lies in providing turnkey cold rolling production lines to optimize the performance of modern steel manufacturing plants.
