pipe cutting machine automatic oil hydraulic 1.feed,cut,back in circular 2. ... .Use HSS blades, Φ250-Φ400 .Ablity of saw blade(mm):50*50,ø60,115*115,110*110,110*50Blade drive motor:4HP ... /3HP (2/4 change pole) 50/60 HZ or 3HP/2HP(4/8 change pole ... ) 50/60 HZBlade rotating speed:standard 35/70 RPM ,special 70/ ...