Corn seeds of a single cross BR-20l, were shelled with moisture content of 10,0, 15,5 and 22,0%, by using a stationary sheller of brand Nogueira model BC-80, with cilynder speed adjusted to 400, 500, 600 and 700rpm. The seeds were analysed for moisture content, mechanical damage, germination and vigor. The experiment was carried out in 1991 at the ?National Maize and Sorghum Research Center? of EMBRAPA in Sete Lagoas, MG. The resutts allowed us to conclude that the better velocity of the sheller Nogueira model BC 80 for BR 201 single cross female maize were 400 and 500rpm. Seeds with 10,0% of water content resist more to higher velocity of the sheller. The vigor of seed decrease when increase the speed of the sheller.