Vertical Roller Mills – LNV TECHNOLOGYContact. V Floor,Sigapi Achi Building, 18/3, Rukmani Lakshmipathy Road, Egmore, Chennai – 600 008. +91-44-4399 0000. csmlnvt. kialnvt . Vertical roller mills are large grinding machines developed, designed and manufactured by Sinoma-tec; Sinoma-tec vertical mills feature a rational and reliable.raw mill two comperment lnvt classifier,Concept of LV Classifier – LNV TECHNOLOGYLV Classifiers are applied to vertical mills and ball mills. References exhibit more than 500 sets supplied to all over the world. LV Classifier produces higher production rate about 10-20% and less specific power consumption about 1.5-5kWh/t, compared with other Separators.