Centrifugal compressors blow away roofing manufacturer's conveying troubles
When a roofing manufacturer's pneumatic conveyor failed to perform adequately, the manufacturer installed two conveying lines, one using centrifugal compressors.
A northern Ohio roofing manufacturer produces rolls of asphalt shingles. Filler and backdust limestone powders are used during shingle production. Filler limestone promotes dimensional stability so shingles don't crack from excessive expansion and contraction. Backdust limestone applied to the shingles' backs prevents them from sticking together.