When it comes to stone cutting, selecting the right saw blade is crucial for achieving optimal results. The 400H brazed diamond saw blade is a top - choice in the market, known for its excellent performance. In this guide, we'll help you understand how to choose the 400H saw blade according to different stone types, enhancing your cutting efficiency and extending the saw blade's lifespan.
Before diving into the selection process, let's first explore the core advantages of the 400H saw blade. It features outstanding wear - resistance, which means it can withstand the abrasion from various stones for a long time. With a stable design, it ensures smooth cutting operations, reducing vibrations and improving cutting accuracy. Additionally, its excellent heat - dissipation design prevents the saw blade from overheating during high - speed cutting, further extending its service life. As the saying goes, "Durability is the ultimate truth." The 400H saw blade truly lives up to this principle, offering you high reliability and cost - effectiveness.
Marble is a relatively soft stone with a Mohs hardness of about 3 - 4. It has a fine - grained structure. For cutting marble, a 400H saw blade with a medium diamond concentration (around 30% - 40%) and a relatively soft matrix hardness (about 30 - 40 HRC) is recommended. This configuration allows for efficient cutting while minimizing chipping. When using it, you should keep a moderate cutting speed (around 20 - 30 m/min) and use water as a coolant to ensure a smooth cut.
Granite, on the other hand, is much harder, with a Mohs hardness of 6 - 7. It has a coarse - grained structure. To cut granite, you need a 400H saw blade with a high diamond concentration (40% - 50%) and a hard matrix hardness (45 - 55 HRC). A slower cutting speed (about 10 - 20 m/min) is required, and continuous water cooling is essential to prevent the saw blade from overheating and wearing out quickly.
Artificial stones are made by combining various materials, and their hardness can vary. Generally, a 400H saw blade with a medium - high diamond concentration (35% - 45%) and a medium matrix hardness (35 - 45 HRC) is suitable. The cutting speed can be adjusted according to the specific hardness of the artificial stone, usually in the range of 15 - 25 m/min. Coolant should also be used to keep the saw blade in good condition.
Tiles are relatively thin and brittle. A 400H saw blade with a low - medium diamond concentration (25% - 35%) and a soft - medium matrix hardness (25 - 35 HRC) is a good choice. The cutting speed can be relatively high (around 30 - 40 m/min), but gentle handling is required to avoid cracking the tiles. Water cooling is also necessary.
In addition to stone types, actual working conditions such as cutting thickness, speed, and cooling methods also affect the performance of the saw blade. For thicker stone cutting, you may need to reduce the cutting speed and increase the coolant flow. When using dry cutting, make sure the saw blade has good heat - dissipation properties and take breaks regularly to prevent overheating.
| Stone Type | Diamond Concentration | Matrix Hardness (HRC) | Cutting Speed (m/min) | Cooling Method |
|---|---|---|---|---|
| Marble | 30% - 40% | 30 - 40 | 20 - 30 | Water |
| Granite | 40% - 50% | 45 - 55 | 10 - 20 | Water |
| Artificial Stones | 35% - 45% | 35 - 45 | 15 - 25 | Water |
| Tiles | 25% - 35% | 25 - 35 | 30 - 40 | Water |
By referring to this table, you can quickly make the right choice for your stone - cutting needs. Whether you're a novice or an experienced technician, mastering the selection of the 400H saw blade according to stone types will surely enhance your cutting efficiency and save costs.
