When it comes to PRO concrete cutting diamond blades, there are 3 main factors to consider. How fast does the blade cut? How much life does the blade offer? What coolants will be used?
Time is money. This means that cutting speed is crucial when considering what diamond blade to choose for your job. Getting the correct bonded blade is very important. So if you’re cutting concrete, you need a soft bonded blade, if you’re cutting asphalt, you need a hard bonded blade. The bottom line is, you want to be cutting between 8 and 10 feet per minute. If you aren’t reaching this metric, get a new blade guy!
You also need your blade to last. Even if the blade is gliding through the material, it needs to give you significant life. With diamond blades, most relationships are opposites. For instance, if you are cutting lower horse power, your blade lasts longer. Or, if you’re cutting with a thicker rim diameter, for example a .187, then your blade will cut slower but last longer, refer to the chart below.
VARIABLES | CONDITION | CUTTING SPEED | BLADE LIFE |
Bond Hardness | Harder Softer | Slower Faster | Longer Shorter |
Diamond Quality | Lower Higher | Slower Faster | Shorter Longer |
Diamond Amount | Lower Higher | Faster Slower | Shorter Longer |
Segment Width | Thinner Thicker | Faster Slower | Shorter Longer |
Horsepower | Lower | Slower | Longer |
Blade RPM | Lower Higher | Faster Slower | Shorter Longer |
Water Volume | Lower Higher | Faster Slower | Shorter Longer |
Cutting Depth | Shallow Deep | Faster Slower | Longer Shorter |
Material Hardness | Harder Softer | Slower Faster | Longer Shorter |
Abrasiveness | More Less | Faster Slower | Shorter Longer |
Aggregate Size | Larger Smaller | Slower Faster | Shorter Longer |
Steel | Less More | Faster Slower | Longer Shorter |