hydraulic auto leveling machine plc touch sreen control 13 leveling rollers DC motor hydraulic auto leveling machine WG43-10×2100 leveling machine1, summarizethis machine adopted several rollers ... roller diameter 160mm 6,distance of leveling rollers 170mm 7,leveling speed 0~15m/min 8,leveling precision 1.5mm/1000mm ,2mm/ ... 165mm12,hardness of roller surface HRC52-58 hydraulic auto leveling machine