MZLH 42 wood pellet mill line: 1,for biomass fuel 2,ring die pellet mill 3, ... motor 4,6mm,8mm,10mm,etc pellets wood pellet mill line: Main structure and working principle: 1,High efficient gear drive ... ,Cast iron gate, stainless chute, strong corrosion resistance ,long service time.3,The feeder is driven by variable frequency motor, convenient ...