According to different cutting materials, the diamond cutter head can be divided into granite cutter head, marble cutter head, sandstone cutter head, limestone cutter head, basalt cutter head, andesite cutter head and so on.
Why are there so many types of cutter heads? Mainly because there are many types of stone in nature, and different stones have different hardness, abrasiveness, toughness, crack resistance, etc. The material is equipped with different diamond cutter heads, so that the cutter head has better cutting performance and service life, so as to avoid the situation that the marble cutter head cuts granite without cutting, and the teeth are lost, and also avoids the consumption of cutter heads when the granite cutter head cuts marble. Too fast, the blade becomes dull, etc.
Diamond Bits for Granite Cutting
So how to distinguish the diamond bits for granite cutting?
1. In terms of shape: The granite cutter head will be designed into various shapes in terms of cutting edge to facilitate cutting, such as M-shaped, V-shaped, K-shaped, W-shaped, corrugated, fan-shaped, etc. Because the cutting area is reduced, the cutter head will be very sharp at the beginning, and it can be stably overrun in the early stage of cutting the stone.
2. In terms of structure: the efficiency of multi-layered granite cutter heads is much higher than that of non-interlayered cutter heads, especially the 7-layer and 9-layer large cutter heads, which are widely used in multi-piece bridge combination cutting and single-arm cutting. Combined cutting, greatly improving the processing efficiency.
3. In terms of carcass raw materials: the granite cutter head faces very hard stone, so the granite cutter head has extremely high requirements on hardness and toughness. At present, silicon carbide base is the best choice, but the price of this material is very high. Due to the high cost, people choose iron base for granite cutter head. The use of this material greatly reduces the price of granite cutter head. Therefore, most granite cutter heads use iron powder, which leads to the partial color of granite cutter head. Grey-black or grey-white.
Common granite bits usually use fine-grained, medium-quality, high-concentration diamond powder. Of course, not all granite bits are formulated like this, but the overall adjustment direction and trend tend to be the same.