SGA series machine tool adopts the form of cross slide layout, and the horizontal guide rail is pasted with teflon soft belt. The table movement adopts the closed hydraulic station system, the forward and backward feed can be manual feed or the automatic intermittent feed can be driven by the motor, the grinding head moving down by using the lifting motor to realize the fast lifting (AHR type) or the servo motor fast lifting and automatic feeding (AHD type), the grinding head spindle adopts the precision bearing, high rigid sleeve structure, It is the best-selling export product.