Weytrust | Industrial Polishing Machines & Tumbling Media Manufacturer
- info@weytrust.com
- +8616605726668
Weytrust high hardness fused alumina abrasive media for heavy deburring, rough grinding & metal rust removal. Brown & white fused alumina tumbling media matched for vibratory tumbler machines, original factory direct supply.
Our fused alumina (aluminum oxide) abrasive media is produced via high-temperature melting, available in brown and white grades. With ultra-high hardness and sharp cutting power, it excels at heavy rough grinding, fast deburring, scale and rust removal for steel, cast iron and other ferrous metals. Ideal for mass pre-processing with vibratory tumbler equipment.
Raw virgin brown fused alumina with ceramic binder is high-temperature sintered, offering sharp cutting for efficient rough grinding.
Designed for rough finishing to quickly remove burrs, flash, rust, oxide layers and tool scratches, creating a smooth surface for fine polishing..
Suitable for stainless steel, iron, aluminum, magnesium, zinc alloy, copper and general metal hardware components.
Triangular, spherical, cylindrical, star and oval options fit flat planes, holes, curved and irregular workpieces.
| Items | Brown Fused Alumina (A) | White Fused Alumina (WA) | Chrome Fused Alumina (PA) |
|---|---|---|---|
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| Color | Brown | Pure White | Ruby Red / Pinkish Red |
| Main Composition | Al₂O₃ 94.5% ~ 97% | Al₂O₃ ≥ 98.5% | Al₂O₃ ≥ 99.5% (with trace Cr₂O₃) |
| Mohs Hardness | 9.0 | 9.0 | 9.0 ~ 9.1 |
| Toughness | ★★★★★ High | ★★★☆☆ Medium | ★★★★☆ High |
| Key Features | High toughness, cost-effective, strong cutting performance | High purity, good self-sharpening, low grinding heat | Superior toughness, excellent wear resistance, premium surface finish |
| Suitable Workpieces | Carbon steel, alloy steel, malleable cast iron, hard bronze — rough grinding | High carbon steel, high-speed steel, hardened steel, stainless steel — fine grinding | Precision tools, gauges, bearing steel, instrument parts — high-precision grinding |
| Typical Applications | Heavy deburring, rust removal, rough polishing, sandblasting | Fine polishing, mirror grinding, precision part processing | Super-finishing, high-end workpiece surface treatment |
Custom formulations, grit sizes and shapes available upon request. Contact Weytrust for tailored abrasive solutions matching your exact process needs.
| Parameter | Fused Alumina Media | Ceramic Tumbling Media |
|---|---|---|
| Hardness | Ultra-high hardness, sharp cutting | Medium hardness, good toughness |
| Main Process | Rough grinding, heavy deburring | Medium finishing & fine deburring |
| Consumability | Brittle, fast wear | Long service life, wear-resistant |
| Suitable Workpiece | Hard ferrous metal | Aluminum, brass, soft alloy & precision parts |
Widely used for rust removal & rough polishing of carbon steel hardware to round edges and boost surface quality.
Ideal for cast/forged steel parts; shaped media smooth corners and cast marks with minimal material loss.
High-hardness brown alumina removes oxide scale on stamped steel, ideal pre-treatment for machining & electroplating.
Brown alumina cuts heavy burrs on auto steel parts for efficient bulk vibratory finishing
We have sorted out the most frequently asked questions from customers. If you have any other doubts, feel free to contact us anytime.
White fused alumina has higher aluminum oxide purity, higher hardness for finer coarse grinding; brown fused alumina owns better toughness with more economical price for general heavy rough processing.
Not recommended. Its sharp cutting edge is easy to scratch soft non-ferrous metals, ceramic or resin media are better choices for aluminum and brass workpieces.
Coarse grit (120# ~ 400#) is ideal for heavy burr removal; fine grit above 600# is used for secondary fine coarse grinding.
Brown fused alumina is designed for rough grinding, so its wear resistance is lower than abrasives used for fine polishing. However, our product outperforms ordinary commercial brown fused alumina on the market in terms of wear resistance, cutting power and overall performance.
Wet grinding with water is recommended. For metal workpieces prone to rust, replace water with rust-proof liquids such as kerosene, cutting fluid or emulsion fluid.
It cannot produce a bright polished finish. Featuring strong cutting capacity, brown fused alumina will remove the original metallic luster, leaving a dull, matte surface after processing. The workpiece will become flat and smooth instead of shiny.
There must be a proper size gap between the workpiece and abrasive media for easy separation after processing. Normally, the abrasive size should be smaller than the workpiece.
Larger-sized abrasives work faster for workpieces with heavy burrs, yet excessively big grains may easily cause damage to your parts.
