Issue link: http://www.e-digitaleditions.com/i/83700
Tatch-A-Cleat® Cleat patterns General Cleat Information When choosing cleat installation patterns, you should give major consideration to the type of return support which is available or feasible. Where conveyor pulley center distances are 15 feet or less, it is often possible to omit return rolls safely. Where the curved or chevron pattern is used with standard return rolls, cleats should be arranged so that they provide a set of continuous contacts between cleats and rolls. On drives using pulleys less than 6" in diameter, curved or chevron patterns should not be used. The ends of cleats mounted in a curved pattern should be tapered to lead smoothly onto return rolls. Suggested minimum cleat height for various sized materials and degrees of incline This chart assumes that material being conveyed has a 30° natural angle of repose. For rounded or free-fl owing materials with a natural angle of repose of less than 30°, use the cleat corresponding to the next higher material size. (For example, if your material is 4" high, with a natural angle of repose of less than 30°, and your belt incline is 40°, you would use a 3" cleat — that is, the cleat size corresponding to 5" material. 8" 7" 6" 5" 4" ½" 6" 6" 4" 3" 2" 1" ⅝" ⅝" 30° Cleat Height 6" 6" 4" 3" 2" 6" 6" 6" 4" 3" 3" 1 ½" 1 ½" 2" 2" 1" Belt Incline Suggested cleat spacing This chart assumes that material being conveyed has a 20° dynamic angle of repose (30° natural angle of repose) and that cleats are installed at a right angle to the belt edge. For more free-fl owing material, use slightly closer cleat spacing. 6" 4" 3" 2" 35" 23" Cleat Spacing 28" 1 ½" 8 ½" 6" 4" 30° 21" 15 ¾" 17" 13 ½" 10" 12" 8 ½" 6¼" 5" 2 ¾" 40° 50° Belt Incline 18 ½" 13 ½" 10 ½" 8" 5" 4" 1" 5 ½" 4 ¼" 2¾" 2 ½" ⅝" 2" 1 ¾" 60° 6" 6" 6" 6" 4" 3" 1" 1 ½" 2" ⅝"1" ⅝" 40° ⅝"1" 50° 1 ½" 60° Type IN TROUGH SQUIRREL CAGE STAGGERED ACROSS BELT WIDTH SELF-CLEANING Cleat Pattern Return Rolls SPLIT ROLLS Recommended Where Cleats are needed only to lock material in place on the conveyor. Where drain-off of liquids presented special problems. Where incline is steep and/or material has high flowability – as with large, round or uniformly sized material. STANDARD RETURN ROLLS CURVED RUBBER-DISC SPLIT STANDARD RETURN ROLLS CHEVRON Where increased load capacity is required with a given belt width, trough, and incline. Where drain-off is a a problem, and rubber disc-type rolls are available. Where drain-off is a problem, and standard solid return rolls are used. www.fl exco.com • phone: 1-630-971-0150 PRODUCT HANDBOOK 83 Tatch-A-Cleat® Cleat Height Size of Material