In the architecture of large-scale grinding equipment—such as ball mills and AG/SAG mills—the
Mill Head (End Cover) serves as more than just a container for ore and grinding media. It is the strategic pivot connecting the hollow shaft and transmitting massive torque. Its quality directly dictates the equipment’s operational availability and site safety.
With over 20 years of expertise in heavy steel casting, Tenfaye has become a trusted partner for global industrial leaders, including ThyssenKrupp and Metso, delivering components that withstand the world’s harshest mining and cement environments.
I. Material & Specifications: Custom-Engineered for Performance
At Tenfaye, we understand that different operating conditions demand specific balances of toughness and hardness. We go beyond standard materials to provide application-specific solutions:
Primary Materials: High-strength ZG270-500 is our standard for ensuring structural stability under massive loads.
Manufacturing Capacity: Leveraging our advanced production lines, we provide a wide range of custom casting from 1 to 150 Tons, meeting the requirements of everything from compact mills to ultra-large SAG mills.
II. Core Advantages of Tenfaye Mill Heads
1. Superior Fatigue Life & Structural Integrity
Utilizing advanced CAE simulation technology, we optimize the casting process to eliminate stress concentration points. This effectively resolves the common industry pain point of cracking at the root of
the mill head. Following precise quenching and tempering, our mill heads feature a dense internal structure and high fatigue resistance, extending service life by more than 30% compared to conventional castings.
2. Exceptional Hardness & Wear Resistance
To combat the deformation caused by long-term abrasive environments, Tenfaye employs precise chemical composition control and specialized heat treatment. This results in superior surface hardness, allowing the mill head to resist impact and spalling from high-hardness materials.
3. Rigorous Non-Destructive Testing (NDT)
Every mill head undergoes stringent Ultrasonic Testing (UT) and Magnetic Particle Testing (MT) before leaving the factory. Critical high-stress areas, such as the hollow shaft connection, meet the highest industrial inspection levels, ensuring "Zero-Defect" delivery.
4. High-Precision Machining for Seamless Installation
Equipped with large-scale vertical lathes and CNC machining centers, we maintain exceptional concentricity and tolerance control. This ensures a perfect fit between the mill head, the shell, and the trunnion, significantly reducing on-site installation time and long-term maintenance costs.
Get a Professional Quote Today
If you require high-quality, customized large-scale steel castings, Tenfaye is ready to support your project.
Send us your drawings today! We provide comprehensive technical quotes within 24 hours.
