surface grinding machine saddle moving surface grinding hydraulic grinding machine SGA2550AH SGA3036AH SGA4080AH Surface griding machine AH: Auto cross feed, hydraulic longitudinal feed, manual vertical feedAHR: Auto cross feed, hydraulic longitudinal feed, rapid vertical feedAHD: Auto cross feed, hydraulic longitudinal feed, automatic vertic feed MODELUnitSGA2550AHSGA3063AHSGA4080AHCode No. ...