SZ-300 stone drilling machine adopts round column as its guide slip surface for steady automatic ups and downs. The main drivr has two kinds: single speed and double speed. It is mainly uses drilling and tombstones tank processing. SZ-300 DRILLER MACHINEAppellationUnitSZ-300Drilling diametermmØ15- Ø300Max. vertical strokemm1400Water consumptionm³/h0.85()Power of main motor2 speedskw6.5 / 8Gross powerkw8.7Dimension(L×W×H)mm1600×1000×2700Weightkg1150kg