Block Cutter Machine with Heavy Cast Iron Column is used to cut the granite, marble and other natural stones in slabs of variable thickness. The Block Cutter Machine has heavy cast iron columns and beam which provides rigidity as well as vibration free cutting of stone that ensures better life of segments. The Block Cutter Machine has carriage assembly that provides spindle speed reduction in small ratio gear box for energy saving in a simple and compact way. Block Cutter Machine with Heavy Cast Iron Column is provided with trapezoidal screws which are actioned by two reduction gears which are connected to a transmission shaft.