Joint Cutting Blades

Choosing a proper diamond saw blade for a concrete saw is a necessary condition to perform a cutting task well. Apart from some basic aspects, such as what diameters of diamond saw blades the concrete saw can accommodate, and the blade’s quality, there are some other important aspects which should also be taken into considered.

The match between the diamond saw blade’s features and the material being cut whether it be concrete or ashphalt. For example, some concrete structures and surfaces are reinforced some is not.  Some contain stone aggregate such as pebbles and some might be crushed rocks. There is also a difference in curint times.  Cured concrete has been standing for a long time and green concrete for a much shorter space of time.  Diamond saw blades should have different designs to fit these concrete and asphalt properties.

Though diamond saw blades for concrete are usually laser welded, they are normally designed for wet cutting because the concrete that needs to be cut is often very hard or abrasive. If the blades are used without adequate water, the diamond segment itself may break or the steel core below the segment may wear and break, and then the segment may fly out.  If you have to perform dry cutting for some reason (e.g. there is no water source near your work area), you can choose sharper diamond blades, and the dry cutting should be intermittent and shallow (you can do several passes of shallow cuttings to gain a deep cut) to keep the diamond blade cool.

Whether faster cutting or longer lifespan is needed, the basic cutting speed of the diamond saw blades should be determined before any blade is chosen. On this basis, a blade which has a faster cutting speed or a longer lifespan can be selected.

The power output of the concrete saw. If the concrete saw has a high power output, the diamonds on the saw blade will receive a higher impact when cutting is performed. In this case, the diamond concentration of the diamond saw blade should be higher, or its bond should be harder. Whilst if the saw has a low power output, the diamond concentration should be lower or the bond should be softer to make the blade become sharper to ensure the cutting speed needed.