2.wood pellet machine can press 2-8mm diameter pellets, there are three knives installed nearby pellet machine outlet door, which can adjust last pellet length , very convenient to operate . wood pellet machine has one flat die inside ,its flat die hole can be changed into from 2mm-8mm , for example if install 4mm hole die , then will produce 4mm diameter pellets ,Pellet density is 1.1-1.4ton/m3. 4.wood pellet machine has auto lubricate spare part oil system, which can lubricate three rollers, vertical shaft, bearings, gears automatically , If don¡¯t have the auto lubricate oil system, needs to add oil each four working hours manually. suitable ocean freight package