4.5 Inch Aluminum Oxide Fiber Wood Grinder Wheel For Angle Grinder

disc abrasive grinding round fiber disc

Angle grinding plate is a high speed grinding tool with resin as binder and glass fiber mesh as reinforcement. It has high impact strength, high grinding rate, easy to use and safe. The maximum use speed can reach 80m/ s, installed in various grinding machines for free grinding, easy to use.

Abrasive Material Characteristics

Self - Sharpening Property

Many quality angle grinder discs have a self - sharpening characteristic. As the abrasive particles wear down during use, they break away in a way that exposes new, sharp edges. This self - sharpening property allows the disc to maintain its cutting and grinding efficiency over an extended period. For instance, during the grinding of a metal surface, the disc continuously presents fresh abrasive surfaces, reducing the need for frequent replacements.

Hardness and Toughness

Different abrasive materials in angle grinder discs provide a range of hardness and toughness. For example, aluminum oxide discs have good overall hardness and toughness. Brown alumina is tough enough to withstand the rigors of grinding various steel alloys, while white alumina offers higher hardness for materials like quenched steel. Silicon carbide discs have extremely high hardness, making them excellent for cutting and grinding hard non - metallic substances such as ceramics and glass. Zirconia alumina discs combine the hardness of alumina with the added toughness from zirconium, enabling them to handle tough - to - grind metals like stainless steel.

Characteristics of angle grinding disc

1. Abrasive Material Diversity
   Angle grinding discs are available with different abrasive materials. For instance, aluminum oxide discs are common and offer good durability and cutting performance for general - purpose applications. Zirconia - alumina discs have higher strength and heat resistance, making them suitable for heavy - duty grinding tasks. Silicon carbide discs are excellent for grinding hard and brittle materials like ceramics and stone due to their sharp - cutting nature.
2. High - Quality Bonding
   The abrasive grains in angle grinding discs are firmly bonded using advanced bonding agents. Resin - bonded discs are popular as the resin provides good flexibility and shock resistance during operation. This ensures that the abrasive grains remain in place even under high - speed rotation and heavy - pressure grinding, prolonging the life of the disc.

Application of Angle grinding disc

1. Metal Fabrication and Repair
   • Cutting and Shaping: Angle grinding discs are extensively used for cutting metal sheets, bars, and pipes into the desired lengths and shapes. In the manufacturing of metal structures such as steel frames for buildings or machinery components, they enable precise cuts to be made. For example, when fabricating a custom - made metal railing, the discs can be used to cut the railing posts and handrails to the correct lengths and angles.
   • Surface Preparation: They are crucial for preparing metal surfaces for further processing. This includes removing rust, mill scale, and old paint coatings. After welding, angle grinding discs are used to grind down weld seams, eliminating slag and smoothing the joint to achieve a seamless finish. This is essential for applications where the appearance and integrity of the metal surface matter, such as in automotive bodywork or architectural metalwork.
   • Grinding and Polishing: For achieving a smooth and shiny finish on metal surfaces, angle grinding discs play a vital role. By using discs with finer abrasive grits, metalworkers can polish stainless - steel components, aluminum alloys, or brass fittings to a high - gloss finish. This is commonly seen in the production of decorative metal objects like sculptures, jewelry, or high - end furniture hardware.
2. Construction and Masonry
   • Cutting Building Materials: In construction, angle grinding discs are used to cut through a variety of building materials. For masonry work, they can cut bricks, concrete blocks, and natural stones with relative ease. When installing a new window or door in a brick - walled building, the discs can be used to cut the opening to the precise dimensions required. In the case of tiles, they are used to make custom - cuts for fitting around corners, pipes, or other fixtures in bathrooms, kitchens, or other tiled areas.
   • Grinding and Finishing Concrete: Angle grinding discs are used to grind down rough concrete surfaces. This can be for the purpose of leveling a concrete floor before laying a new finish such as vinyl, hardwood, or epoxy coatings. They are also used to create decorative finishes on concrete, such as exposed aggregate or a smooth, polished look. In addition, during concrete repair work, the discs can be used to remove damaged or uneven portions of the concrete surface.

Features of Angle Grinder Disc

1. Material Type

• Metal Cutting Discs: Made from aluminum oxide or zirconia, suitable for cutting metal.
• Grinding Discs: Typically made from bonded abrasive materials, ideal for smoothing surfaces.
• Diamond Discs: Contain diamond particles, used for cutting hard materials like concrete or stone.

2. Diameter

• Discs come in various diameters (e.g., 4.5", 5", 7"), affecting the depth of cut and the power needed.

3. Thickness

• Thinner discs are used for cutting, while thicker ones are suited for grinding and heavy-duty applications.