... :20mm-50mm 3: warranty period for 5 years Pellet Machine: It's new generation of energy-saving products,researched and ... straw,plant waste,bamboo poweder,grass,straw,rice husk and wood chips etc.into cylindrical and square shape particles.Machines adopt ... hours. 5. Gearbox is warranty 5 years Capacity1 T/H Wood Pellet Making Machine