2 hydraulic control of cutting speed, step less speed regulation 3 stable sawing with high precision model: GB42401)cutting ... material 400mm,square material 400x450mm2)Feeding Speed(m/min):15 ,30,45,55(Step less Speed Control)3)blade size : 1.3x41x4740mm4)motor ... machine with the same work.4 Hydraulic feeding, step less speed regulation.5 Hydraulic claming, automatic stopping.6 Simple and convenient ...