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APPROXIMATE PER HOUR CAPACITIES OF APRON FEEDERS ACCORDING TO WIDTH1830” Wide 36” Wide 42” Wide 48” Wide 60” Wide 72” Wide3Tons Yds3 Ton Yds3 Tons Yds3 Tons Yds3 Tons Yds3 TonsPan Travel(Ft. per Min.) Yds10 55 74 80 108 109 147 143 192 222 300 320 43215 83 112 120 162 164 222 214 289 333 450 480 64820 110 148 160 216 218 294 284 384 444 600 650 86425 138 186 200 270 273 369 357 482 555 750 800 108030 165 223 240 324 327 442 427 577 667 900 960 129635 193 260 280 378 382 516 500 673 778 1050 1120 151240 220 296 320 432 436 588 572 768 888 1200 1280 1728NOTE: Considerable variance will always be encountered when calculating the capacities of feeders. Usually, experience is the best guide to what a feeder will handle under given conditions of material, rate of travel of the feeder pans, anddepth of loading. The table above is based on a depth of material equal to half the feeder width, and tons are based on material weighing 2,700 pounds per cu. yd. A feeding factor of .8 has been introduced to compensate for voids,resistance to flow, etc. This factor, too, will vary with the type of material and its condition when fed.The following formula can be used to calculate the approximate capacity in cubic yards of a feeder of given width where the feeding factor is determined to be other than .8:Cu. Yds per Hr. = 2.22 (d x w x s x f); whered = depth of load on feeder, in feet: s = rate of pan travel, in feet per minute;w = width of feeder, in feet; f = feeding factor.To convert cu. yds. to tons; multiply cu. yds. by 1.35.Pan Travel (meters per.762 m Wide .914 m Wide 1.07 m Wide 1.22 m Wide 1.52 m Wide 1.83 m Wide(minute) m 3 mt m 3 mt m 3 mt m 3 mt m 3 mt m 3 mt3.05 42 67 61 98 83 133 109 174 170 272 245 3924.57 63 102 92 147 125 201 164 262 254 408 367 5886.10 84 134 122 196 167 267 217 348 339 544 489 7847.62 105 169 153 245 209 335 273 437 424 680 611 9089.14 126 202 183 293 250 401 326 523 510 816 734 117610.67 147 236 214 343 292 468 382 610 594 953 856 137212.19 168 269 245 392 333 533 437 697 679 1089 978 1568
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