FAQ

• Q: Why are our Metal Bond Concrete Grinding Tools priced higher than many other factories in China?
• A: This is because we not only use high-grade diamond materials and high-concentration diamonds, but we also use copper-based alloy powder as the bond. In contrast, other factories often use lower-grade diamond materials, lower diamond concentrations, or iron-based bond. Additionally, our tools are silver brazed, whereas cheaper tools are copper brazed. Below is an explanation of the benefits of using copper-based binders and silver brazing. The main advantages of using copper powder over iron powder in metal-bond tools are as follows:
• 1. **Higher Wear Resistance**: Copper powder as a binder improves the tool’s wear resistance, allowing it to last longer during operation. This is particularly beneficial for applications requiring extended usage.
• 2. **More Uniform Grinding Performance**: Copper powder distributes more evenly within the bond, ensuring consistent diamond exposure during grinding. This results in a smoother, more uniform grinding finish.
• 3. **Better Heat Dissipation**: Copper has better thermal conductivity than iron, so using copper powder enables more effective heat dissipation. This reduces heat buildup during high-intensity work, extending tool life and enhancing efficiency.
• 4. **Ideal for High-Quality Applications**: Although copper powder formulations are more costly, they significantly enhance tool quality, meeting high European and American standards and making them suitable for markets and customers with stringent quality requirements. These characteristics make copper powder tools superior in both performance and durability compared to iron powder tools. While the cost is slightly higher, they excel in high-quality and demanding applications. In the manufacturing of diamond grinding blocks, silver brazing is generally considered superior to copper brazing due to several key characteristics that better meet the requirements of diamond tools. Here’s why:
• 1. **Lower Brazing Temperature** - Silver brazing operates at a lower melting and brazing temperature, typically between 600°C and 800°C. This lower temperature minimizes damage to the diamond crystals, preserving their sharpness and durability. - Copper brazing, on the other hand, requires higher temperatures (typically between 800°C and 1000°C), which can negatively affect the diamond structure, compromising its performance and lifespan.
• 2. **Better Wettability and Filling Properties** - Silver brazing alloys have excellent wettability, allowing them to spread more evenly between the diamond and the base material. This results in a stronger and more uniform bond, enhancing the grinding block’s strength and stability. - Copper brazing alloys have relatively poorer wettability and flow, which can lead to uneven joints, reducing the overall quality and longevity of the grinding block.
• 3. **Higher Joint Strength and Toughness** - Silver brazed joints offer superior strength and toughness, allowing the diamond grinding blocks to withstand the high-impact and intense grinding conditions they are subjected to. Silver brazed joints are less prone to cracking or loosening, especially in environments with significant vibration and shock. - Copper brazed joints have relatively lower strength and toughness, which can lead to cracking or detachment over time, making them less suitable for high-intensity industrial applications.
• 4. **Extended Tool Life** - Silver brazing not only preserves the sharpness of the diamonds but also extends the lifespan of the grinding block. Due to the lower brazing temperature, silver brazing reduces thermal damage to the diamonds, enhancing the tool’s durability. - Copper brazing, with its higher operating temperature, can cause more damage to the diamonds, potentially reducing the grinding performance and accelerating wear, thus shortening the tool’s life.
• 5. **Suitability for Precision Work** - Diamond grinding blocks are often used for high-precision surface finishing and grinding. Silver brazing provides superior uniformity and joint quality, which is essential for precision applications. - Copper brazing, due to its high temperature and limited wettability, produces joints that may lack the precision and stability required, impacting the grinding block’s performance in fine applications.

Q: What is Concrete Surface Preparation Tools

A: Our concrete surface preparation tools are designed specifically for the concrete floor restoration professional as well as for quick removal of any materials. All bonding strengths (extra hard, hard, medium, soft, or extra soft) are available for all kinds of concrete or different coating removals. Two segment bar trapezoids are designed for thin mil coating removal, some mastic removal, and for the first steps in concrete polishing. We offer these diamonds in double bar and single bar segment design. Round segments are for grinding applications where a smooth profile is needed—they’re good for concrete polishing. The rounded edges reduce scratches and are excellent for the first steps in concrete polishing or staining applications. Full round PCD are designed with a large full round or two 1/4 round pieces of PCD for long life and aggressive removal of epoxy, elastomeric, mastic and glue removal and almost any other coating. The PCD scrapes and rips through epoxy or paint coatings without gumming up or smearing or marring the coatings. Diamond Cake and trapezoid will fit under all major planetary grinders. Configurations include single segment, double segment, arrow segment, and PCD's as well as custom designed segments. Medium Bond: For Medium /Hard concrete and removal of light chemical residue, paints Hard Bond: For soft abrasive concrete /mortar; This Harder metal bond segment gives longer life in abrasive applications Soft Bond: Softer bond offers fast grinding for very hard concrete Available: in 1 or 2 segment configuration. Grit Sizes: 6, 18/20, 30/40, 60/80, 120/150

Q: What is Concrete Polishing Tools

A: Our concrete polishing pads are used for honing and polishing concrete and other materials to a lustrous shine. Diamond polishing pads are designed with evenly embedded diamonds throughout the matrix to provide a brilliant finish with efficient, long-lasting design. The polishing pads you’ll find below are designed for removing scratches and grinding marks in order to prepare the stone or concrete for polishing. Leading Diamond Tools also carries a full line of other concrete polishing supplies, more of which you can find below. Leading Diamond Tools offers a full range of diamond polishing pads to get the job done right the first time. Leading Diamond Tools has developed a complete range of concrete polishing supplies to cover the full range of equipment and applications in the concrete flooring industry. We offer various configurations in concrete polishing tooling to get the best performance and shine, from handheld polishers to the heaviest machines on the market. Leading Diamond Tools has perfected its line of Resin Hybrid and transitional-style bonds, each offering its own characteristic. Our products are extremely efficient at removing scratches and creating high shine in the fewest number of steps. Leading Diamond Tools offers a variety of configurations with different surface areas able to be used on most machines. Leading Diamond Tools’ high-quality Velcro and color-coding system ensure magnificent durability and easy grit identification.

Q: What is metal hybrid bond polishing pads

A: For improving the efficiency to quickly remove stock and for increasing the Durable life of pad set significantly, we creates resin-metal-bond polishing pads, available from #30, #50, #100,#200 to #400, available both by wet and by dry. They are made with pregnant diamond metal chips with unique resin bond. They are heat compressed into a mould. This is a new kind of high capability pads. They can be applied to excellent fabrication of marble, concrete and granite . They are welcomed by our consumers with very much interest.