The decibels of each machine on running are as follow: animal feed hammer mill crusher is about 100 decibels, Hayvonlar yem peletlash mashinası 90 decibels, vibrating screen 90 decibels, fan 80 decibels, and elevator 80 decibels. All the statistics are estimated based on experiences but not on practical test, which can be recollected and verified on the trial running.