1. diesel engine or electric-motor engine; 2. Crush nearly all kinds of biomass materials into sawdusts. 3. CE certificate Product features:1. Hammer mill are for grinding the Bio-mass like straw, stalk and wood chip, tree branch and forest waste to be powder of less than 3-5mm, which is right size before pelletizing and briquette.2. It is also ideal machine for farming material like dry or fresh ...