Feb 28, 2022
Here’s a Way to Check for Screen Media Gaps
While you’re performing equipment repairs around the plant, check out the crushing and screening operations, too. If screen media has been installed incorrectly, you could see slow production, material that goes out of spec, and screen media wearing out quickly. These are not good things.
One test that costs nothing is the string test. This works on media installed with crown bar rubber. You want to make sure you have it installed correctly, so run a string from one side plate to the other side plate, going over the crown bars. Pull the string tight. You want to look for gaps between the string and the crown bars. If you see gaps, you know the media won’t sit properly on the crown bars. You need to correct the height of the crown bars to get the media installed correctly.
Also watch out for over-tensioning. A gentleman from Astec Mobile Screens shared that over-tensioning can result in a curved tension bar. Multiple sources recommended replacing a curved tension bar.
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