In the modern steel industry, continuous casting is the critical link connecting steelmaking and rolling. A reliable, efficient, and easy-to-operate continuous casting machine (CCM) directly determines the stability, output, and cost control of the whole production line.
Today we share a professional R4.0m two-strand continuous casting machine designed for 80–100mm square billet and high-quality carbon steel production. It perfectly matches short-process, hot-charging rolling lines, with high operating rate, low failure rate, and long service life.
Core Design Concept
This continuous casting machine is built around mature technology, stable performance, energy saving, and easy maintenance. It supports high automation, precise control, and stable production rhythm, making it ideal for medium-scale steel mills.
- Matching with 3 sets of 5t medium frequency furnaces
- Suitable for 80×80mm – 100×100mm square billets
- Main product: 90mm square billet
- Applicable steel grades: high-quality carbon structural steel, 20MnSi, Q235, etc.
- Radius: R4.0m
- Type: full arc continuous casting machine
Overall Configuration & Key Equipment
The machine adopts a compact and robust layout, with independent control for each strand to ensure stable and flexible operation.
Steel Ladle & Tundish System
- Steel ladle support: steel ladle moving cart (20t capacity)
- Tundish support: high-low leg mobile cart (15t capacity)
- Stable molten steel supply and accurate flow control
Crystallizer & Oscillation System
- Integrated oscillation structure for high stability
- Amplitude: ±2–±4mm (adjustable)
- Oscillation frequency: 20–280 times/min (PLC controlled)
- Stainless steel water jacket for long service life
Withdrawal & Straightening System
- 5-roll withdrawal straightener with internal water cooling
- Dual drive, strong traction, high precision
- Rigid dummy bar for reliable starting
Cutting System
- 45° hydraulic shear for clean, fast cutting
- High precision, no deformation, suitable for hot charging
Secondary Cooling
- Full water cooling + automatic water distribution
- PLC-controlled atomizing nozzles for uniform cooling
- Stable billet quality and minimal cracks
Cooling Bed & Handling
- Internal water-cooled sliding rail cooling bed
- Hydraulic billet pusher for stable conveying
- Supports hot charging to rolling mill to save energy
Control System
- Independent PLC module for each strand
- Siemens PLC & inverter, Schneider contactors
- HMI for real-time monitoring, easy operation
- Centralized electric cabinet for easy maintenance
Production Process Flow
Qualified molten steel → Ladle car → Tundish → Crystallizer → Secondary cooling → Withdrawal & straightening → 45° hydraulic shear → Roller conveyor → Billet pusher → Cooling bed / hot delivery → Billet stacking
This short process greatly improves efficiency and reduces energy consumption.
Technical Parameters (Highlights)
- Casting radius: R4.0m
- Strands: 2 strands
- Billet section: 80–100mm square
- Working speed: 2.8–3.8 m/min (90×90mm)
- Max speed: 4.0 m/min
- Cutting: 45° hydraulic shear
- Cooling: full water, automatic distribution
- Effective operating rate: 84.9%
- Preparation time: only 25.3 minutes per heat
Utility Requirements
Cooling Water
- Crystallizer water: ≥120 m³/h, pressure ≥1.0 MPa
- Secondary cooling water: ≥30 m³/h, pressure ≥0.6 MPa
- Mechanical cooling water: ≥80 m³/h, pressure ≥0.3 MPa
Gas & Power
- Oxygen & fuel gas for emergency cutting
- Total power: approx. 250 kW (380V 50Hz)
Why This CCM Improves Your Production
1. High Operating Rate
- Annual effective working days: 310 days
- Operating rate: 84.9%
- Less downtime, higher output
2. Stable & High Quality
- Uniform secondary cooling
- High-precision straightening and shearing
- Good surface quality and internal structure
3. Easy Operation & Maintenance
- PLC automatic control
- Simple interface
- Mature parts, long service life
4. Perfect for Hot Charging
- Direct hot delivery to rolling mill
- Greatly reduces fuel consumption
- Improves overall economic benefits
5. Long Service Life
- Robust structure design
- High-quality components
- Stable under long-term heavy load
Application & Value
This R4.0m two-strand continuous casting machine is widely used in:
- Short-process steel plants
- Rebar & profile steel production lines
- High-quality carbon steel production
- Hot-charging rolling mills
It helps manufacturers:
- Improve billet quality
- Increase output
- Reduce energy consumption
- Lower labor intensity
- Enhance long-term competitiveness
Conclusion
A high-performance continuous casting machine is the heart of a stable steel production line. This R4.0m two-strand CCM provides mature technology, reliable operation, low failure rate, and easy maintenance. It is the optimal choice for building an efficient, cost-effective short-process steel line.
