... running cost 3. Overall reliability 4.Max. ef 1. Wood pellet mill is to make pellet from bio-mass such as straw ... pellet mill are most suitable for processing of different products such as wood, straw, grass, waste,paper, plastic, coal etc.5.Design feature ... processing of different products, such as wood, straw, grass , plastic waste, coal, paper, RDF etc.Design features such as overall reliability, ...