5 Types of Granite Cutting Blades

The manufacturing process of saw blades varies, resulting in different types of circular saw blades used for granite cutting. In this article, we’ll explore five types of granite cutting blades, their production processes, sizes, and applications, to help you choose the right blade for your needs.

 

1:High-Frequency Welded Sintered Granite Circular Saw Blades 

Production Process:

High-frequency welded sintered granite circular saw blades utilize a traditional welding method that begins with a mixture of high-quality diamond powder, cobalt, nickel, copper powders etc. in specific proportions. This mixture is placed into molds and subjected to high temperatures and pressures to form the segment according to the mold’s shape. Only the best-looking and highest quality segments are selected and then polished. These are firmly attached to the saw blade using a welding agent and a welding machine.

Size:

These saw blades typically range in diameter from 200mm to 3000mm, with cutting segments available in 8mm, 10mm, 12mm, 15mm, 20mm, and 26mm. This variety allows for accommodating different scales and requirements of cutting tasks.

Application:

The appropriate saw blade is selected based on the usage scenario and compatibility with the cutting machinery, as well as the size of the material being cut. For example, blades ranging from 300mm to 600mm are commonly used on bridge saws or CNC 3-axis or 5-axis machines, while blades 800mm and above are typically used on equipment for quarrying.

granite cutting saw blade
granite cutting saw blade

2:Laser Welded Blades

Production Process:

High-energy laser beam is used to precisely heat the contact point between the diamond segment and the steel core to melt, forming a strong weld to fix the segments on the steel core. This method provides a strong and durable bond with high precision and strength, and enhance the cutting performance of the blade.

Size: 

Generally, laser welding blades are available in sizes ranging from 300 mm to 600 mm in diameter. This size range makes it suitable for a variety of cutting machines and applications.

Application: 

Saw blades used in the construction field are usually laser welded blades. Due to the complexity of cutting materials, which may also contain steel bars and other materials, it will be safer to use laser welded saw blades. But it’s also great for cutting granite and other hard materials where precision is critical.

laser welding blade

Laser Weld Diamond Cutting Floor Blade
Laser Weld Diamond Cutting Floor Blade

3. Electroplated Blades

Electroplated blades are very popular in professional stone processing and fine art work due to their excellent fine cutting performance and ability to work with soft or fragile materials.

Production Process:

Electroplating technology is to immerse the steel core in an electroplating solution containing diamond particles. Through electrochemical reaction, the diamond particles are firmly plated on the surface of the steel core, forming a solid single-layer structure. This structure allows the saw blade to provide a high degree of precision and a more uniform cutting surface when cutting.

Size:

Electroplated blades typically come in diameters ranging from 100mm to 250mm, making them ideal for smaller-scale cutting tasks, especially where space is limited or finesse is required.

Application:

Electroplated blades are particularly suitable for cutting marble, soft stone, and performing fine work such as shaping and profiling. Due to the even distribution of diamond particles on its surface, electroplated blades provide smooth and precise cuts, making them ideal for stone processing that requires fine decoration or detailed engraving. In addition, this kind of saw blade is also often used in the production or restoration of art, and can accurately handle fragile and fragile materials, reducing material loss.

electroplated cutting blade electroplated cutting blade

4. Brazed Blades

Brazed saw blades and electroplated saw blades have many similarities, especially their production principle of fixing diamond particles to a steel core. But brazed saw blades are becoming more and more popular because they are more durable and the manufacturing process is more environmentally friendly.

Production Process:

Brazing involves using a metal alloy known as brazing filler, typically containing silver, copper, or other metals. This filler is placed in either strip or powder form between the diamond segments and the steel core. The assembly is then heated in a controlled environment, typically in a specialized furnace, to a temperature above the melting point of the brazing filler but below the melting points of the steel core and diamond segments. This causes the brazing filler to melt and fill the gaps between the diamond segment and the steel core, creating a strong metallic bond.

 

Application:

The sizes of brazed saw blades are comparable to those of electroplated blades.

 

Style:

With growing environmental awareness and higher demands for cost-effective tools, more manufacturers and users are shifting towards brazed saw blades. Although the initial cost of brazed blades may be higher than that of electroplated blades, their longer lifespan and lower maintenance requirements offer greater cost-effectiveness in the long run.

5. Grinding Blades

Multipurpose saw blades that can cut and grind are becoming increasingly popular because they can be mounted on angle grinders, allowing for the completion of a series of processing steps without the frequent need to change tools.

 

Production Process:

These blades are generally produced using an integrated sintering process, either hot-pressed or cold-pressed, which forms the blade in one piece.

 

Application:

Grinding blades are particularly suitable for small-scale precision finishing of granite countertops and tile edges, removing excess burrs and providing rough grinding or polishing.

 

Style:

These blades come in various styles to accommodate different levels of grinding and finishing. Whether the task requires minor touch-ups or more intensive material removal, there is a grinding blade style available to meet the specific needs of the project.

 

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