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Shell Run-Out

What is maximum allowance redial run-out for kiln shell.

It all depends where on the kiln you are measuring the run out and what damage it is causing. In some areas like mid-span 100 to 150mm is often seen without much problem. This would likely be a big problem if it is at the ends of the kiln. More than 12mm run-out at any tire would likely be a problem. No matter how much run-out is present if it can be tied to any of: -short refractory life -cyclical roller loading causing bearing or shaft failures -uneven drive loading -excessive ovality -shell cracking -drive vibrations -other problems ---then you have too much run-out.

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