DIAMOND BLADES / 191 www.flexovit.com TROUBLESHOOTING CAUSE: The segments are too hard for the material SOLUTION: Check if the blade is suitable for the material CAUSE: The segments are too hard for the material SOLUTION: Check if the blade is suitable for the material CAUSE: Undercutting occurs when the steel core wears faster than the segment, i.e. where the segment and steel core meet. This is usually caused by materials that are highly abrasive. The cutting debris is not removed sufficiently and the steel core is affected. Undercutting is certain to occur if a diamond blade for hard materials is used to cut abrasive materials SOLUTION: Use a diamond blade suitable for the specific material CAUSE: The segment is too soft for the material (e.g. if a blade for hard material is used to cut abrasive material) SOLUTION: Check if the diamond blade is suitable for the material CAUSE: The segments are too hard for the material. This results in the diamond blade bouncing in the cut resulting in cracking segments SOLUTION: Check if the diamond blade is suitable for the material CAUSE: Excessive cutting pressure causing overheating. This is easily recognisable from the blue colouring where the segments and the steel core are welded together SOLUTION: Allow the diamond blade to cool regularly by rotating the blade away from the workpiece for a few seconds CAUSE: The segments are too hard for the material SOLUTION: Check if the diamond blade is suitable for the material. Alternatively use less cutting pressure and let the blade do the work CAUSE: The segments have become blunt SOLUTION: Sharpen the segments by cutting an abrasive material (e.g. sandstone) CAUSE: Excessive cutting pressure, overheating, material slippage, twisting or jamming in the cut SOLUTION: Leave the blade to do the work, do not exert too much pressure and allow the blade to cool regularly by leaving it to rotate away from the workpiece for a few seconds CAUSE: Insufficient machine power SOLUTION: Check the voltage, machine power and filters DIAMOND BLADE DOES NOT CUT CRACKING OF STEEL CENTRE UNDERCUTTING EXCESSIVE WEAR LOOSENING OR CRACKING OF SEGMENTS SCORCHING OF SEGMENTS MAX OPERATING SPEED DIA (mm) MAX m/s MAX RPM 100 80 15300 115 80 13300 125 80 12250 150 80 10200 180 80 8500 200 80 7650 230 80 6650 250 100 7650 300 100 6400 350 100 5500 Never exceed the maximum operating speeds: • Hand held blades ø < 230mm: 80m/s • Hand held blades ø > 230mm: 100m/s • Others: 63m/s DIAMOND BLADES
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