Coconut & Palm slag rotary dryers （patent number：ZL200920089749.2）are specifically designed and manufactured based on the property of coconut slags and palm fruit slags, which have the advantage of large capacity, high drying ability, high efficiency, easy operation, guaranteed quality, less footprint, etc. This product could save 30% to 50% energy compared with similar products, largely reducing the fuel consumption and operation cost. Our product can be customized according to the property of biomass materials, output requirements, application requirements, cost control, automation level, site conditions, and other requirements. Coconut slag is the byproduct of the coir fiber industry. With strong water absorption capacity, good ventilation performance, pest resistance, and other characteristics, it has been widely used as the medium of mushrooms and flowers. Similarly, palm slag is the main byproduct of the palm fiber industry, which can be processed into biomass solid fuel.