WANLONG
Diamond saw blades are not like ordinary consumer goods, where quality can be easily discerned simply by looking at the exterior. As tools, saw blades often appear quite similar on the surface; without professional expertise, it is difficult to distinguish between superior and inferior products using the naked eye alone. However, by mastering a few key techniques and conducting a careful inspection, one can identify subtle flaws that reveal the overall performance potential of the product.
Below are some tips on how to select a saw blade by examining specific details:
1. First, check from the side to see if the diamond segments (teeth) on the blade align along a straight line.
If the segments do not align, it indicates that their dimensions are irregular—some may be wider or narrower than others. This irregularity leads to instability during stone cutting operations, thereby compromising the overall quality of the saw blade.
2. Inspect the joint between the segments and the blade core (matrix) to ensure a tight bond.
After the brazing process, a visible seam exists between the segments and the core. If the curved base of the segment has fused perfectly with the core, no gaps will be visible. The presence of gaps indicates that the segment and the core have not fully bonded; this is primarily due to uneven grinding of the segment’s curved base during manufacturing.
3. Weigh the saw blade.
Generally, the heavier and thicker a diamond saw blade is, the better. A heavier blade generates greater inertial force during cutting, resulting in a smoother and more stable cutting process. As a general guideline, a 350mm diamond saw blade should weigh approximately 2 kilograms, while a 400mm blade should weigh around 3 kilograms.
4. Check the hardness of the blade core (matrix).
The higher the hardness of the blade core, the more resistant it is to deformation. Therefore—whether during the high-temperature brazing process or during actual cutting operations—the core’s hardness directly impacts the quality of the saw blade. A core that remains undeformed under high heat during brazing, and remains rigid even under extreme operational stress, is considered a high-quality core; when crafted into a finished saw blade, it results in a superior tool.
By applying the four criteria outlined above, you can effectively assess the quality of a diamond saw blade. When shopping for diamond saw blades, we encourage you to use these points as a checklist to determine whether the blade you are considering is truly a high-quality, durable tool.
