1150 mm 6-hi CRM

Technical Introduction
Our precision-engineered 6 hi cold rolling mill technology transforms hot-rolled steel coils into ultra-thin gauges with unmatched accuracy. Designed for high-volume manufacturing across automotive, aerospace, and electronics sectors, the system integrates proprietary force control algorithms with Industry 4.0 connectivity. The 1150 rolling mill variant delivers heavy-duty processing capabilities, while our universal 6 hi rolling mill architecture enables dual-mode operation for unprecedented flexibility.

Raw Material Specifications

• Material: ASTM A569 hot-rolled low-carbon steel coils

• Max Weight: 22,000 kg/coil

• Width Range: 700–1,000 mm

• Thickness: 1.2–4.0 mm

• Input Coil OD: Φ900–Φ1,900 mm

• Input Coil ID: Φ610 mm

Finished Product Specifications

• Max Weight: 22,000 kg/coil

• Thickness Range: 0.20–0.80 mm

• Thickness Tolerance:

  ±0.01 mm (δ ≤ 0.3 mm)
  ±3%δ (δ > 0.3 mm)

• Surface Finish: Ra ≤ 0.2 μm

• Output Coil OD: Φ900–Φ1,900 mm

• Mandrel Diameter: Φ510 mm

Core Product Advantages

1. Precision Engineering Excellence

The 6 hi cold rolling mill configuration achieves industry-leading tolerances through:

• Intermediate roll shifting for 50% better flatness vs. 4-hi mills

• Dynamic shape control eliminating center buckle/edge waves

• ±0.1% thickness consistency across 0.20–0.80 mm gauges

• Real-time AGC (Automatic Gauge Control) with laser measurement

2. Force & Capacity Capabilities

• 1150 rolling mill variant:

  • 15,000 kN rolling force capacity

  • Processes slabs to 200 mm thickness

  • Heavy-plate applications (construction/marine)

• Universal 6 hi rolling mill:

  • Processes 1.2 mm HRC → 0.20 mm CRC in single line

  • 70% faster hot-to-cold rolling changeovers

3. Enhanced Productivity

• 30% higher throughput vs. conventional mills

• Strip speeds: 1,500 m/min (max)

• Automated coil transfer between Φ610→Φ510 mm mandrels

• 22,000 kg coil handling without de-coiling

Technical Superiority

Six-High Mill Innovations

• Work Roll Bending: Adjustable crown control (±0.5% profile)

• Intermediate Roll Shift: 400 mm stroke eliminates edge drop

• Roll Cooling Optimization: ±1°C temperature control

Industry 4.0 Integration

• Cloud Analytics: Predictive roll wear modeling

• HMI Recipe Management: 500+ material profiles stored

• IoT Vibration Sensors: 400+ hr failure prediction

• Energy Monitoring: Real-time kW/kg consumption tracking

Operational Advantages

Company Credentials

• R&D: 45 engineers at dedicated rolling technology center

• Certifications: ISO 9001/14001, CE, PED, ASME

• Global Installations: 500+ mills across 30 countries

• Patents: 37 proprietary technologies

Service Ecosystem

Pre-Sales Engineering

• Material reduction feasibility studies

• Plant layout simulation (AutoCAD 3D modeling)

• ROI analysis with guaranteed <24-month payback

After-Sales Assurance

• Commissioning: First-coil trial supervision

• Training: Level 1-3 certification programs

• Warranty: 24-month performance guarantee

• Support: 24/7 technical hotline (4-hr response SLA)

• Spare Parts: 10-year availability guarantee

Industry Applications

• Automotive: Ultra-uniform battery foils (0.20 mm)

• Electronics: EMI shielding strips (±0.008 mm tolerance)

• Construction: Structural components (200 mm slabs)

• Aerospace: Titanium alloy cold rolling (Ra 0.15 μm)

Product Highlight

"Our 6 hi cold rolling mill technology delivers ±0.01mm precision on 0.20mm gauges with 30% faster processing, while the heavy-duty 1150 rolling mill variant handles 200mm slabs at 15,000kN force – all featuring Industry 4.0 analytics and guaranteed <24-month ROI."

Lifecycle Value Proposition

• TCO Reduction: 40% lower operating costs vs. European mills

• Scalability: 5 tph pilot lines → 500,000 tpa mega-facilities

• Sustainability: 20% energy reduction through regenerative drives

• Future-Proofing: OPC-UA connectivity for MES integration