Yes, rotary dryer is the preferred drying equipment for EFB (empty fruit bunch) and palm fiber, widely used in palm oil waste biomass processing lines across Malaysia, Indonesia and Southeast Asia. Fresh EFB and palm fiber come from palm oil mills, featuring high moisture, long fibrous texture and easy tangling, which brings challenges to drying. A properly customized rotary dryer can efficiently remove excess water and prepare materials for biomass pellet, briquette and organic fertilizer production.

Raw EFB and palm fiber usually carry 50–65% moisture after oil extraction. For pelletizing, the target moisture needs to drop to 12–15%. Standard rotary dryers adopt inclined rotating drum with special anti-tangling lifting flights inside. As the drum rotates, flights lift and spread the fiber into a uniform material curtain. Hot air flows through the drum to exchange heat evenly, evaporating moisture continuously. This design avoids fiber winding, material blockage and uneven drying problems common for palm biomass.

Before feeding into rotary dryer, pre-processing is necessary. EFB should be crushed into short fibers. Metal impurities are removed by magnetic separator to protect the dryer drum and internal parts. The hot air generator can burn EFB waste as fuel, cutting energy cost and realizing circular economy. Operators can adjust drum rotating speed and hot air temperature flexibly according to raw material conditions.

Supporting auxiliary systems guarantee stable and safe operation. Cyclone dust collectors capture fine palm fiber dust to meet environmental emission standards. Temperature monitoring system prevents overheating and fiber burning. Compared with other dryers, rotary drum dryer has large processing capacity, continuous running, low maintenance cost, suitable for medium and large palm waste processing plants.

However, ordinary rotary dryers without modified lifting structure may suffer from fiber wrapping and material accumulation. It is important to select rotary dryer customized for EFB and palm fiber. With matched pre-crushing and dust removal units, rotary dryer can steadily dry EFB and palm fiber to required moisture, helping palm mill owners turn waste into valuable biofuel products.