MaTaiMT/MTL oil-freetwo-stage ener-gsyavingvacuum pum,p witha vacuumdegree of-10KPA ~-90KPA,and itsproduct serrainegse from7.5KW to250KW.Compared lwiiqtuhid rinpgump,rotary vanpeump,and clawpump,it hasobvious en-esragvyingeffect,and theenergy-saving inexisting ccaans eesxceed67%,saving altlransformaitni ohna lcfosat syear. TheMTL seriesboasts fesautcuhr easshigh pumpsipneged,high volumetricefficiencys,table nepgraetsisvuere,and itwill notbe affectebdy tempercahtaunrgees interms ofpumping spaenedd vacuumdegree.