Dynabrade 58400 Palm Air Random Orbital Sander 5 Inch

Product Description

The DYNABRADE 58400 is a palm-style air-powered random orbital sander designed for surface preparation, finishing, and material removal in industrial and trade environments. It operates at 12,000 OPM and draws 23 CFM at 90 psig through a 1/4 NPT inlet, making it compatible with standard shop air systems. The 0.45 HP motor drives a 5-inch round pad with a 0.1875-inch (5 mm) orbit diameter, delivering consistent scratch patterns suited to paint prep, body work, and production finishing. At 2.5 pounds, it reduces operator fatigue during extended use. A licensed HVAC, body, or industrial maintenance tech will recognize this as a production-grade tool built for daily shop use.

The 58400 is suited for automotive refinishing, general fabrication shops, aerospace surface prep, and woodworking finishing lines. Its palm grip form factor fits tight panel sections and contoured surfaces where larger sanders cannot maneuver. The 5-inch round pad format is a common standard in body shops and industrial finishing environments. Minimum hose size is 0.38 inches; connect to an adequately sized air supply to maintain consistent operating pressure at the tool.

Key Features

• 12,000 OPM random orbital action for consistent, swirl-minimized surface finish
• 0.1875-inch (5 mm) orbit diameter for fine finishing and scratch pattern control
• 23 CFM air consumption at 90 psig operating pressure
• 1/4 NPT inlet fits standard shop air fittings
• Includes premium urethane weight-mated sanding pad for balanced pad contact
• Lightweight 2.5-pound body reduces fatigue during extended operation

Compatibility

Designed for use with standard 5-inch round hook-and-loop or PSA sanding discs and compatible backing pads; requires a minimum 0.38-inch air hose and a compressed air supply capable of sustaining 90 psig at 23 CFM.

Installation Notes

Depressurize and disconnect the air supply line before attaching or removing the sanding pad or any fittings. Use a properly sized air hose of at least 0.38 inches internal diameter to avoid pressure drop that reduces tool performance. Verify the shop compressor can sustain 23 CFM at 90 psig at the tool inlet under continuous use. Consult the manufacturer service documentation before performing internal maintenance or governor adjustments.