1) Adopt the gantry structure which have no Underbed.

2) I bought a set of three cardboard underbed boxes for about $10.

3) High strength underbed, the complete machine running quality is steady.

4) An effective approach for utilizing low grade coals, fluidized bed combustion with flyash underbed recycle is recommended based on analyzing the state of the art of fluidized bed combustion.

5) Small-scale fertilizer granulator is mainly composed by motor, making grains disc , gearbox , underbed, main shaft bearing , regulate device and rotational speed test system , etc.