
CNC Machined Tundish Nozzle
Advantages of CNC machining of sprues:
Improves the stability of molten steel flow
Reduces the risk of molten steel erosion and slag formation
Enhances casting surface finish and yield
Extends sprue service life and reduces production costs
Products Description

The CNC-machined tundish nozzle is a high-precision refractory component specifically designed for steel smelting and continuous casting processes. Manufactured using advanced CNC machining technology, this nozzle features precise dimensions, smooth flow channels, and excellent high-temperature resistance. It significantly improves the stability of molten steel flow and reduces quality issues caused by slag formation and molten steel turbulence.
Key Features
High-Precision CNC Machining
CNC machining ensures smooth molten steel flow, reduces turbulence and bubble formation, and improves the efficiency of molten steel transfer in the ladle.
High-Temperature and Corrosion Resistance
The materials used offer excellent heat resistance, wear resistance, and chemical corrosion resistance, extending the service life of the nozzles.
Stable Flow Control
Stable Flow Control
The flow channels are optimized using fluid dynamics, ensuring a steady flow of molten steel into the ladle, reducing slag formation, and improving the surface quality of castings.
Wide Range of Applications
Suitable for various industrial applications, including continuous casting machines, molten steel transfer in ladles, and special steel casting. Dimensions and materials can be customized to meet customer requirements.
Parameters
| Model | Material | Nozzle Diameter | Height | Max Operating Temperature | Weight |
|---|---|---|---|---|---|
| CNC-TN-100 | Zirconia | 100-200 mm | 300 mm | ≤ 1600°C | 15 kg |
| CNC-TN-150 | Alumina | 150-250 mm | 350 mm | ≤ 1600°C | 20 kg |
| CNC-TN-200 | Zirconia/Alumina Composite | 200-300 mm | 400 mm | ≤ 1600°C | 28 kg |
Customization Note:Custom nozzles can be manufactured according to customer-specific continuous caster specifications, molten steel temperatures, and process requirements.
Applications
CNC machined tundish nozzles are widely used in continuous steel casting, serving as the critical link for molten steel transfer from the tundish to the mold. By precisely controlling steel flow rate and flow pattern, they effectively reduce turbulence and reoxidation, improving ingot quality and production stability.
In the manufacturing of premium steels such as stainless steel, alloy steel, and high-temperature alloys, CNC-machined nozzles offer superior dimensional accuracy and corrosion resistance. This helps minimize inclusion formation, ensures high steel cleanliness, and improves the consistency of finished product quality.
In the tundish systems of major steelmaking enterprises, CNC machined nozzles meet the demands of multi-strand casting and long-duration continuous pouring. Their stable flow control and extended service life contribute to higher overall production efficiency and lower maintenance costs.
As a key component of metallurgical refractory systems, CNC machined nozzles are typically used in conjunction with slide gates and submerged entry nozzles. By optimizing molten steel flow fields and refractory structure design, they enable more efficient steel control and enhanced overall system performance.
During steel plant equipment upgrades or retrofits, CNC machined tundish nozzles provide customized solutions to meet diverse specifications and process requirements. They help enterprises improve steel control precision, reduce losses, and achieve more efficient and stable production operations.
Why Choose Changtai
Extensive Experience
Years of experience in the R&D and production of ladle nozzles
Fast Delivery
High-efficiency CNC machining ensures on-time delivery

Customized Services
Tailored solutions based on ladle dimensions and molten steel processing requirements
Quality Assurance
Every nozzle undergoes rigorous quality testing to ensure high precision and durability
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