JKINGS PRODUCTS
Product Description
Professional Brown Fused Alumina Flap Discs - General Purpose Grinding
Reliable Performance for Everyday Metal Fabrication
Our Brown Fused Alumina (BFA) flap discs offer the perfect balance of cutting efficiency and cost-effectiveness. Made from high-quality bauxite-based aluminum oxide (Al₂O₃ ≥ 95%), these discs provide consistent stock removal on carbon steel, mild steel, and general ferrous metals. The classic choice for workshops demanding reliable performance without premium pricing.
Key Features
- High-purity brown fused alumina (95% Al₂O₃) for consistent cutting action
- Tougher than white aluminum oxide, ideal for heavy-duty grinding
- High-strength fiberglass backing plate (0.8mm thickness) resists warping
- Flaps arranged at 10° angle for optimal contact and aggression
- Available in T27 (flat) for finishing and T29 (angled) for aggressive grinding
Technical Specifications
| Abrasive Grain | Brown Fused Alumina (BFA) - Premium Grade |
| Grit Sizes | 40, 60, 80, 120 (Coarse to Fine) |
| Diameter | 100mm (4"), 115mm (4.5"), 125mm (5"), 180mm (7") |
| Bore Size | 16mm, 22.23mm (7/8"), M14 threaded hub available |
| Backing | Fiberglass reinforced plastic (0.8mm / 1.0mm) |
| Max RPM | 15,200 (100mm) / 13,300 (115mm) / 12,200 (125mm) |
| Flap Material | Cotton-polyester blended cloth, X-weight backing |
Recommended Applications
Best suited for: Carbon steel weld cleaning, mild steel deburring, surface preparation for painting, rust removal, edge grinding of structural steel, and general maintenance work. Not recommended for stainless steel (risk of contamination) or very hard alloys.
Value Proposition
The workhorse of metal fabrication. While not as aggressive as zirconia or ceramic, BFA flap discs provide the lowest cost-per-grind for standard steel applications. Ideal for training new operators or high-volume production where abrasive cost is a primary concern.
Application
1. Metal Deburring
Smooths rough edges and removes burrs from steel and iron.
2. Surface Preparation
Prepares surfaces for painting, coating, or further finishing.
3. General Grinding & Polishing
Ideal for refining welds, shaping edges, and light stock removal.
4. Fabrication & Construction
Used in metal workshops, shipbuilding, and general manufacturing.
Specification
|
Diameter |
Grit Available |
PCS/BOX |
PCS/CTN |
M/S |
|
100x16 |
40#,60#,80#,100#,120# |
20 |
200 |
80m/s |
|
115x22.23 |
20 |
100 |
80m/s |
|
|
125x22.23 |
20 |
100 |
80m/s |
|
|
150x22.23 |
10 |
100 |
80m/s |
|
|
180x22.23 |
10 |
100 |
80m/s |
Certification
ONLINE MESSAGE
JKINGS is a global industrial brand committed to high-performance abrasives and tools. Built on advanced Industry 4.0 manufacturing and extensive OEM expertise, we deliver precision, durability, efficiency, and reliability for cutting, grinding, and beyond.
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