Dynabrade 52631 Air Handheld Disc Sander 12000 Rpm 4 in

Product Description

The DYNABRADE 52631 is a pneumatic handheld disc sander built for metal fabrication, surface prep, and finishing work in industrial and trade environments. It accepts 4-inch abrasive discs and runs at 12,000 RPM driven by a 1.30 horsepower air motor. Operating at 90 psi with an air consumption of 43 CFM, this tool requires a properly sized compressed-air supply to deliver consistent performance. The 3/8-inch NPT inlet connects to standard shop-air fittings. Licensed mechanics, metal fabricators, auto body technicians, and maintenance tradespeople are the typical users for a tool of this type.

The 52631 is suited for grinding, blending, and surface conditioning tasks on metal, weld seams, and similar hard materials. At 4.3 pounds, it is compact enough for sustained handheld use in tight spaces or overhead positions. Its dimensions of 10.25 inches in length, 8 inches in width, and 6.5 inches in height make it practical for bench-side or in-place work on fabricated assemblies, structural components, and equipment housings.

Key Features

• 12,000 RPM free speed for aggressive material removal with 4-inch discs
• 1.30 HP air motor delivers consistent power under load
• 3/8-inch NPT air inlet compatible with standard shop-air plumbing
• 90 psi operating pressure with 43 CFM air consumption
• Compact 4.3-pound body suited for handheld and positional use

Compatibility

Designed for use with 4-inch abrasive discs. Requires a compressed-air supply capable of sustaining 90 psi and 43 CFM at the tool inlet for rated performance.

Installation Notes

Installation and operation should be performed by qualified tradespeople familiar with pneumatic hand tools and compressed-air safety practices. Verify the air supply line is depressurized before attaching or removing the tool from the airline. Use a properly rated 3/8-inch NPT fitting and ensure all connections are secure before operation. Always install the correct abrasive disc rated for the tool speed before powering the air supply.