Exploring the Various Types of Discs for Angle Grinders

Angle grinders are a kind of efficient and multifunctional power tools, widely used in the stone and concrete processing industries for tasks such as cutting, grinding, polishing, and cleaning. These tools can be loaded with discs ranging from 4 inches (100 mm) to 9 inches (230 mm) in diameter, covering a variety of functions from cutting and grinding to polishing. 

Therefore, choosing the right disc is crucial for enhancing work efficiency and ensuring processing quality. Understanding the different functions of angle grinder discs can help users complete a variety of processing tasks more effectively.



一、Grindig Wheel


  • Types: Many different types of backers and segment shapes. 

The base of the grinding disc (cup wheel)can be made from various materials such as aluminum, iron, rubber, or plastic, each affecting the weight of the disc.

The design of the segment including like: single or double-layer ripple, single-row or double-row segment teeth, continuous segment and etc. to meet different customer needs and material specifics.


  • Features: Different designs bring different effects.

Aluminum backers are favored for their lightweight and excellent heat dissipation,For prolonged use, opting for a lighter material can make the work less taxing; iron backer cup wheels are renowned for their stability and durability; rubber backer cup wheels offer good elasticity and shock absorption.

The design of the segment also determines the grinding efficiency and application range of the wheel. For example, For rougher, more abrasive materials, segmented segment types offer stronger grinding power and better chip removal. The ripple diamond segment is the most popular due to its versatility.


  • Applications: Select the grit based on your material for more efficient processing.

In the stone and concrete processing industries, choosing the right grinding wheel is essential for ensuring efficient, high-quality processing outcomes. The coarse grit diamond grinding disc offers high grinding efficiency, making it an ideal choice for processing hard materials. Grinding wheels of different grit sizes cater to varying degrees of grinding needs; coarse wheels are used for rapid material removal and rough grinding, while fine wheels are designed for detailed grinding and polishing.

Therefore, selecting the appropriate type and grit of grinding wheel, based on the specific processing needs and characteristics of the material, is key to enhancing processing efficiency and ensuring the quality of the finished product.


SSD grinding cup wheels

二、Cutting Blade


As below showed, the angle grinder can accommodate many types of saw blades, allowing you to choose the most suitable one for your needs.


  • Types, Features, and Applications of Sintered Saw Blades:

Sintered saw blades are manufactured through a high-temperature sintering process that embeds diamond particles firmly into a metal matrix, creating a segment with high strength and wear resistance.

They have the widest range of applications; for example, the turbo blades are not only suitable for cutting hard materials like granite and concrete, ensuring cutting efficiency and precision but can also be used on fragile materials such as ceramics and marble.

It’s important to note that although they may look similar, the diamond segment formulations produced by different manufacturers for various materials are not the same. Therefore, it’s crucial to communicate clearly with the manufacturer when making a purchase.


  • Types, Features, and Applications of Electroplated Saw Blades:

Electroplated saw blades use an electroplating process to fix diamond particles onto the diamond segment parts, creating sharp cutting parts.

These blades have a relatively lower production cost and are suitable for cutting softer stones, like marble, but may wear out more quickly when cutting harder materials.

Electroplated saw blades perform well in small-scale or infrequent cutting tasks, making them an economical and practical choice for cutting tools.


  • Types, Features, and Applications of Brazed Saw Blades:

Brazed saw blades are made using a high-temperature brazing process that affixes diamond particles onto a metal matrix, ensuring good cutting performance and a longer lifespan.

These blades are suitable for cutting a variety of materials, including Dekton stone, Nano quartz, cerimic and etc., offering high versatility and stability.

Brazed saw blades excel in multipurpose cutting tasks, making them an ideal choice in professional processing and construction fields.


small cutting blade


三、Diamond Disc


  • The Multifunctional saw blades is a new type of diamond disc.

They are designed for cutting and grinding, applicable to nearly all materials, such as Turbo segment grinding and cutting discs, laser-cut groove grinding and cutting discs, and continuous grinding and cutting, etc.

A common feature among them is the especially long working length of the segment part, with many resembling a corrugated shape. This unique design effectively cuts and grinds a variety of materials.

Multifunctional diamond saw blades are widely used in stone processing and construction engineering fields, quickly and efficiently removing uneven surfaces and defects on materials, laying a solid foundation for subsequent fine processing.

cutting and grinding disc


四、Flap Disc


High-Efficiency, Innovative Polishing Tools


  • Types: Varieties of Diamond Flap Discs.

They are made using an electroplating process that exposes diamond particles, offering powerful grinding force. Available in a wide range of grits from coarse 60# to fine 600#, they meet various polishing needs. The backing comes in fiber, plastic, and aluminum options.


  • Features: High Efficiency and Versatility of Flap Discs.

Flap Discs are known for their efficient grinding performance and broad applicability. The special electroplating process exposes the diamond particles, enhancing the grinding force, allowing them to easily handle hard materials. The choice of multiple grit sizes provides users with flexibility to meet different precision processing needs.


  • Applications: Wide Applications of Flap Discs

Flap Discs are extensively used in construction engineering, stone processing, and surface treatment of metal products, among other fields. They effectively remove unevenness and defects from material surfaces.



electroplated flap disc 


五、 Resin Cup Wheels


Using a resin grinding wheel before the polishing pads can enhance polishing efficiency.


  • Types of Resin-Filled Grinding Wheels:

By incorporating silicon dioxide and diamond powder between the diamond segment of traditional diamond grinding discs, these wheels gain dual functionality for both grinding and polishing. Popular in the market are aluminum backed grinding cup wheels with resin and various teeth counts, such as 4 teeth, 6 teeth, 8 teeth, etc.

The different numbers and layouts of the cutter teeth significantly affect the grinding force of the product. For example, a resin grinding wheel with 8 internal teeth is sharper than one with 4 internal teeth due to having more diamond segment teeth.


  • High Efficiency Grinding and Polishing Performance of Resin Wheels:

The unique structure of resin wheels allows for initial polishing during grinding, significantly enhancing polishing efficiency and reducing processing time. They offer strong grinding force, good polishing results, and durability, extending their lifespan and saving on the next step of polishing time and costs.

The design of resin grinding wheels considers ease of use and cost-effectiveness, making them an essential tool in the stone processing industry.

resin filled cup wheel


六、 Diamond Polishing Pads


When it comes to soft polishing pads, there are many styles available, which can be divided into dry and wet pads depending on the environment of use.


  • Dry diamond polishing pads,

are designed specifically for dry polishing, requiring no water cooling and can be used directly for grinding and polishing operations. These pads are suitable for quick grinding and polishing of materials like stone and concrete, especially in environments without water access or where water use is prohibited.


  • Wet diamond polishing pads,

on the other hand, are used with water and are suitable for wet polishing. During the polishing process, the cooling effect of water effectively reduces the temperature of both the pad and the material, decreasing wear on the pad and improving grinding efficiency. Wet pads are suitable for grinding and polishing stone, concrete, and other materials, achieving a smoother surface finish.

As labor costs continue to rise, there’s a growing demand for achieving the ideal brightness in the shortest possible time. As a result, 3-step quick polishing pads are very popular on the market.


  • 3-step quick polishing pads

quickly complete coarse grinding, fine grinding, and polishing in three steps. Choosing the correct formula for your material can improve work efficiency.


  • 7-step polishing pads

are traditional pads that include seven different grit stages from 50# to 3000#, suitable for moving from coarse to fine polishing. Whether using 3-step or 7-step pads, achieving the highest surface smoothness and gloss may require adding a BUFF pad or wool pad based on your material for a more perfect finish.


diamond polishing pads


In the use of angle grinders, different types of grinding discs play a crucial role.


From cutting stone and concrete to grinding and polishing, each disc has its unique design and function to meet specific processing needs. Therefore, choosing the right tool is essential for improving processing efficiency, ensuring the quality of work, and maintaining operational safety. It’s recommended to select the most suitable product based on the hardness of the material, the precision of the work, and the desired outcome.


Before operating an angle grinder, it’s imperative to wear appropriate protective gear, such as safety glasses and gloves, to protect yourself. During use, maintain a balanced force to avoid applying too much or uneven pressure, which could lead to imperfect results. Careful selection and proper use can significantly enhance work efficiency while achieving satisfying processing outcomes.




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