best practices and guidelines, operators can help extend the life of their mill, reduce maintenance costs, and optimize overall efficiency

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The mill should be rotated intermittently when it is still hot and the outlet gas temperature exceeds 50°C. This helps prevent longitudinal scratches and damage to the trunnion bearing or slide shoes.

When the mill is stationary, oil is slowly pressed out due to the mill’s weight. This leads to contact between the bearing and trunnion, and between the tire and slide shoes. If the mill shell contracts while cooling, axial displacement and scratching of the bearing or slide shoe surface can occur.

Leaving the high-pressure pump on can aid in preventing damage by maintaining the oil film between surfaces. Turning the mill while it is still hot is also good practice to prevent axial cracking of the mill head and circumferential cracking of the shell.

Regular maintenance and inspections are crucial to prevent damage and ensure optimal mill performance. Operators should monitor the mill’s temperature, vibration, and lubrication systems to detect potential issues before they become major problems.

In addition, proper shutdown procedures should be followed to prevent damage to the mill and its components. This includes gradually reducing the mill’s speed and temperature, and securing the mill in a safe position.

By following these best practices and guidelines, operators can help extend the life of their mill, reduce maintenance costs, and optimize overall efficiency.

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