Flap Wheel Abrasive Sanding Drum – Aluminum Oxide

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Product Specification

FLAP WHEEL ABRASIVE SANDING DRUM – ALUMINUM OXIDE

The 4-1/2" x 4" Flap Wheel Abrasive Drum from Benchmark Abrasives is engineered for high-output stock removal and surface leveling on large metal parts. Its wide working face and rigid flap construction make it well suited for production environments where speed, control, and durability are critical.

This drum is built using heavy X-weight abrasive cloth combined with aluminum oxide grain to withstand sustained pressure and extended run time. The layered flap layout creates a stable cutting surface that balances aggression with control, making it effective for preparing parts prior to finer finishing steps.

As the drum operates, the overlapping flaps naturally wear to reveal new cutting edges, helping maintain uniform performance over the life of the abrasive. The design adapts well to irregular surfaces while remaining firm enough to tackle scale, mill residue, oxidation, coating buildup, and surface defects. It is commonly used for flattening weld areas, knocking down high spots, and stripping coatings before final finishing or polishing operations.

Quantity: 1 piece

Dimensions

• Face Width – 4”
• Head Diameter –4-1/2”
• Material – Aluminum Oxide (x-weight)
• Diameter – Keyway
• Available Grits – 40, 60, 80, 120, 180, 240
• Max RPM – 4,000

Machines Used On:

• Surface finishing machines, linear grinders, burnishers, contouring grinders, and burnishing machines aka Drum Sanding Machines

Application:

• Ferrous Materials – Cast Iron, Steel, Stainless, Steel, Titanium, Nickel, Wrought Iron
• Non-Ferrous Materials – Copper, Brass, Tin
• Other Materials – Fiberglass, Plastic, Hard Rubber, Wood
• Dry use ONLY
• This aluminum oxide sanding drum is especially well suited for:
  • Deburring and edge cleanup
  • Blending scratch patterns and parting lines
  • Weld cleaning and weld blending
  • Rust, paint, and oxidation removal
  • De-scaling heat-treated aluminum
  • Surface leveling prior to finishing
  • Creating a uniform grain before switching to a finishing drum.

Safety Tips & Techniques:

• Apply light pressure and let the tool do the work. Bearing down on the tool will result in reduced tool life.
• Always wear proper PPE to include (but not limited to) safety glasses, hearing protection, respirator, and hand protection. Keep all guards in place on your machine.
• Avoid use on electric power drills; the slower speeds can result in chipping of your workpiece.