| 209 / | HD | CLASSIFYING, SEPARATING, AND ASSORTING SOLIDS |
| 233 | DF | SIFTING {16} |
| * | DD | .~ Drum sifters {2} |
| * | | .~.~ Horizontal and inclined {4} |
| 284 | DF | .~.~.~> Feeding or dischargingd {1} |
| 287 | DF | .~.~.~> Reciprocating and rotating |
| 288 | DF | .~.~.~> Rotating {3} |
| 300 | DF | .~.~.~> Stationary |