Profile: Sigma Machine Tools manufactures & exports machines for marble, granite and other stones. Our product range includes block slicing machines, stone polishing machines, edge cutting (trimming) machines and edge profiling machines. We also offer lathe machines, precision radial drilling machines, automats, power press machines, crank shearing machine, press brake machine, hydraulic hacksaw machine, hydraulic plate blending machine, hand press brake, power angle notcher and section bending machine. Block slicing machine also known as block dressing machine can be used to cut the block of stone extracted from the mines into thin slices. This machine can be used for cutting marble, granite and other stones. It is one of the essential machines for manufacturing stone slabs. It is a very powerful machine and slicing through the granite's very hard structure easily since the saw tips are composed of industrial diamonds. Water or kerosene is used as a cutting coolant in order to keep the temperature down while cutting the block. Auto cutter drive is a edge cutting machine. It is used to trim and smooth the rough sides (edges) of a marble or granite slab. It consists of a moving cutter and a fixed base. The movement of the cutter is powered by an electric motor.