Double column vertical lathe suit for 1)motor, water turbine generator, 2)aviation, mining ... so on 1.This series machine is suitable for motor, water turbine generator, aviation, mining machinery, metallurgy ... and finely etc.2.The main drive adopts A C motors, and sliding gurdeway or rolling guild ... to the customer’s requests3.Feed system adopts A.C motor with 18 steps.4.Accessories including side head ...