... hammer mill, grass/straw cutter , straw bale crusher ,pellet machine and briquette machine, dryer and cooler, screener, mixer , biomass pellet boiler , ... the high alloy anti-friction steel material. Which can bear high pressure and have enough ability to crush logs into ... reasonable structure, low consumption and high working efficiency. 4.sawdust machine is very hot selling more than 1000 sets per year ...