Dynabrade 54783 Air Angle Grinder 3 in 18000 Rpm 0.70 Hp

Product Description

The DYNABRADE 54783 is a pneumatic angle grinder built for grinding, blending, and surface prep work in fabrication, maintenance, and production environments. It accepts a 3-inch wheel and spins at 18,000 RPM, making it well-suited for aggressive stock removal and weld blending on metal. The tool draws 41 CFM at 90 psi and produces 0.70 horsepower at the spindle. A rear exhaust design redirects air away from the work surface and the operator. Licensed trades and production line technicians installing or servicing this tool should verify shop air supply meets flow and pressure requirements before operation.

The 54783 is intended for use in industrial, fabrication, and finishing applications where a compact, high-speed angle grinder is required. Its 3-inch wheel diameter keeps the tool maneuverable in tight clearances. The triggerlock feature supports sustained operation during extended grinding passes without constant trigger pressure. It is appropriate for metal fabrication shops, MRO environments, and anywhere a reliable pneumatic angle grinder is needed for surface conditioning or material removal.

Key Features

• 18,000 RPM free speed for aggressive grinding and blending with 3-inch wheels
• 0.70 HP output at 90 psi operating pressure
• Rear exhaust directs spent air away from the work area
• Triggerlock for sustained operation during extended grinding passes
• 3/8-24 spindle thread for standard 3-inch abrasive wheel compatibility
• 1/4-inch NPT air inlet fits standard pneumatic quick-connect fittings

Compatibility

Designed for use with 3-inch abrasive grinding wheels threaded to a 3/8-24 spindle. Requires a shop air supply capable of delivering 41 CFM at 90 psi through a 1/4-inch NPT inlet connection.

Installation Notes

Installation and operation should be performed by a qualified technician familiar with pneumatic tooling. Shut off and bleed the air supply line before connecting or disconnecting the tool. Verify that the air supply system delivers the required CFM and pressure at the tool inlet, as undersized lines will reduce performance. Always inspect the abrasive wheel for damage and confirm it is rated for at least 18,000 RPM before mounting.