Alumina Tumbling Media

A Refined Way to Refine Surfaces

The inert nature of FOX Alumina Burnishing Media allows it to be used with a variety of burnishing applications. Alumina works as an effective surface finishing and burnishing media due to its unique properties and composition. Here’s how it operates:

  1. Abrasive Action: Alumina, being a hard and durable material, effectively abrades surfaces. When used in tumbling or vibratory processes, its abrasive particles gently remove burrs, sharp edges, and surface imperfections from parts.
  2. Spherical and Cylindrical Shapes: The media is available in spherical or cylindrical forms, which promote efficient tumbling action. These shapes help in evenly distributing the abrasive forces across the surfaces of the parts, ensuring uniform finishing.
  3. Chemical Inertness: Alumina’s inert nature allows it to be used in both alkaline and acidic environments without reacting with the parts being processed. This makes it suitable for a wide range of materials and applications, including those requiring high chemical resistance.
  4. Polishing and Burnishing: In addition to abrasion, alumina media can enhance the surface luster of metals, such as stainless steel, by polishing and burnishing. It smooths the surface at a microscopic level, creating a polished, glossy finish.
  5. Density and Weight: Alumina has a lower density compared to some other ceramic media, which allows for softer action during the finishing process. This is particularly beneficial for light deburring and fine finishing tasks, preventing excessive material removal and preserving the integrity of the parts.
  6. Non-Contaminating: The white color of alumina media minimizes the risk of color contamination on parts, maintaining their appearance and quality, especially important for color-coated or delicate parts.

By utilizing these properties, alumina media provides a reliable and efficient solution for surface finishing and burnishing, resulting in smooth, polished, and defect-free parts.