3M 7010511420 Psa Disc 30 in 50 Grit Aluminum Oxide

Product Description

The 3M 7010511420 is a pressure-sensitive adhesive (PSA) abrasive disc designed for aggressive material removal in professional sanding applications. Part of the 3M 348D series, this disc measures 30 inches in diameter and features 50-grit aluminum oxide abrasive on a coarse-grade, heavyweight X-weight cloth backing. The cloth backing provides durability and flexibility, making it well suited for contoured or irregular surfaces. It mounts via a PSA backing directly to compatible disc pads, eliminating the need for mechanical fasteners. Trade professionals in fabrication, woodworking, metal finishing, and surface prep rely on this disc for high-stock-removal passes on large-format equipment.

This disc is intended for use with random orbital sanders that accept 30-inch PSA-style abrasive discs. The 50-grit coarse rating makes it appropriate for initial material removal, leveling uneven surfaces, and preparing substrates before finishing grits are applied. It does not include vacuum holes, so it is best suited for open-face sanding applications where dust extraction through the disc is not required. The flexible cloth construction allows it to conform to slight surface variations without tearing under load.

Key Features

• 30-inch diameter PSA disc for large-format random orbital sanders
• 50-grit aluminum oxide abrasive for coarse, high-stock-removal cutting action
• Heavyweight X-weight cloth backing delivers durability and surface flexibility
• Pressure-sensitive adhesive mount for fast, tool-free disc changes
• No vacuum holes — suited for open-face sanding operations
• Maroon disc color for easy grit identification in the shop

Compatibility

Designed for use with random orbital sanders that accept 30-inch PSA abrasive discs. Verify that the sanding pad surface is clean and free of debris before applying the PSA backing to ensure proper adhesion and disc retention during operation.

Installation Notes

Installation is performed by trade professionals or experienced operators familiar with large-format abrasive equipment. Power down and disconnect the sander from its power source before removing a spent disc or mounting a new one. Press the PSA disc firmly and evenly onto the backing pad to seat the adhesive fully before resuming operation. Follow applicable shop safety practices, including use of appropriate respiratory protection and eye protection when operating abrasive equipment.