In steel production, the continuous casting machine (CCM) is the core equipment that determines billet quality, output stability, and operational efficiency. Today we introduce our R8.0m two-strand billet continuous casting machine, a fully engineered turnkey solution designed for medium-sized steelmaking plants, perfectly matched with 20t medium-frequency induction furnaces.
This production line delivers consistent high-quality billets for rebar, wire rod, section steel, and various rolling applications.
1. Project Overview & Key Performance
This integrated steelmaking-continuous casting solution includes:
- 2 sets of 20t medium-frequency induction furnaces
- 1 set of R8.0m high-efficiency two-strand billet continuous casting machine
Core Specifications
- Billet section: 100mm×100mm – 200mm×200mm (standard 150mm×150mm)
- Steel grades: Q235, 20MnSi, and other structural steels
- Designed annual capacity: 400,000 tons
- Operating rate: 82.2%
- Metallic yield: ≥96% (sequential casting)
- Cut length: 6.0m
- Normal casting speed: 2.0–3.0m/min, max: 3.5m/min
The line supports 24-hour continuous operation with high stability, low failure rate, and optimized production cost.
2. Complete Continuous Casting Process
Qualified molten steel → Ladle turret → Tundish → Mold → Secondary cooling → Withdrawal & straightening → Hydraulic shear → Conveying roller tables → Hot charging / Billet transfer → Cooling bed → Billet stacking
Every stage is optimized to minimize temperature loss, reduce defects, and improve product consistency.
3. Core Equipment & Technical Advantages
① Ladle Turret
- Single-arm load capacity: 50t
- Hydraulic drive, stable rotation, stepless speed regulation
- Equipped with weighing system and insulation cover
- Ensures safe and reliable multi-heat sequential casting
② Tundish & Tundish Car
- T-type optimized flow design for uniform steel distribution
- Nominal capacity: ~6t
- High-low leg cantilever structure, dual drive
- Manual transverse adjustment: ±50mm for nozzle alignment
- Strong heat radiation resistance, long service life
③ Mold Assembly
- R8.0m narrow-gap water jacket mold
- Parabolic taper copper tube (phosphorus-deoxidized copper)
- Length: 900mm, water gap: ~4.5mm, water speed: 12m/s
- High-efficiency cooling reduces corner cracks and off-square
- Integrated stainless steel inner water jacket
④ Mold Oscillation System
- Integral oscillation structure (no spring plates)
- Sine oscillation curve
- Frequency: 20–320 cpm (AC variable frequency)
- Amplitude: 2–4mm adjustable
- PLC auto-control synchronized with casting speed
- Improves billet surface quality and equipment durability
⑤ Secondary Cooling System
- Full water cooling + automatic water distribution
- 4 cooling zones (O, I, II, III)
- Stainless steel spray headers for uniform 4-side cooling
- Independent flow meters and automatic control valves
- Auto backwash filter reduces nozzle clogging
- Real-time flow adjustment based on casting speed
⑥ Withdrawal & Straightening Unit
- Five-roll, three-drive structure
- Full internal water cooling for rollers, bearings, motor, and gearbox
- Stainless steel heat shield
- Water-cooled hydraulic cylinder
- PLC-controlled pressure switching between cold & hot billet
- Speed range: 0.3–4.5m/min
- Stable, low-maintenance, and long-lasting
⑦ Rigid Dummy Bar & Storage
- R8.0m adaptive rigid dummy bar
- Precise alignment, smooth insertion
- Motor-driven storage with self-locking function
- Shortens preparation time and improves efficiency
⑧ 45° Hydraulic Shear
- 45° oblique shear design
- Shearing force: >350t
- Cutting cycle: ~18 seconds
- Applicable billet temperature: >800°C
- PLC automatic length control, clean cutting surface
⑨ Roller Tables & Billet Handling System
- Pre-shear, post-shear, and terminal roller tables
- Roller diameter: φ240mm, water-cooled bearing housings
- Elevated cross-transfer car
- Heat-resistant sliding rail cooling bed
4. Fluid & Electrical Control Systems
Hydraulic System
- Independent pump unit: 1 working + 1 standby
- Supplies power for turret, withdrawal, shear, and clamping actuators
- High stability and fast response
Cooling Water System
- Mold cooling: closed soft water circuit with pressure alarm
- Secondary cooling: automatic distribution and real-time monitoring
- Equipment cooling for withdrawal unit, shear, rollers, etc.
Gas & Auxiliary Systems
- Standard interfaces for oxygen, fuel gas, and compressed air
- Axial fan steam discharge system: ~40,000 Nm³/h
Electrical Control System
- Controller: SIEMENS S7-1200 PLC
- HMI for real-time monitoring and parameter setting
- Dual-strand independent control
- Fully automated functions: Mold oscillation Withdrawal speed and pressure control Dummy bar handling & disconnection Secondary cooling auto water distribution
- Total installed power: ~180kW
5. Key Advantages
✅ High operating rate and stable performance
✅ High metallic yield, reduces material loss
✅ Breakout rate < 0.2%
✅ Full water cooling for key components, extended service life
✅ Integral oscillation, greatly reduced failure rate
✅ PLC automatic control, easy operation
✅ Full turnkey supply: mechanical, hydraulic, water, electrical, steel structure
✅ Short installation and commissioning period
6. Ideal For
- Steel plants with 15–30t melting furnaces
- Production of carbon steel, low-alloy steel billets
- Rebar, wire rod, section steel, and bar rolling lines
7. Our Full-Scope Service
- Process design and workshop layout
- Complete equipment manufacturing and supply
- On-site installation, commissioning, and training
- Operation and maintenance manuals
- Long-term spare parts supply and after-sales support
If you are planning a billet continuous casting project or upgrading your existing line, we provide professional, reliable, and cost-effective turnkey solutions.
Contact us today for details, layout, and official quotation.
Whats App: 0086 13613814286
Email: hengyuan6@hotmail.com
