DYNABRADE 48522 Right Angle Air Disc Sander 0.4 hp pneumatic components power

Right-angle disc sander for metal finishing

The Dynabrade 48522 is a pneumatic right-angle disc sander built for heavy-duty industrial use. Its compact head reaches tight corners on metal fabrications, weld seams and surface-preparation jobs. A fixed-speed motor delivers 0.4 hp at 20,000 rpm through a 2-inch locking pad. The tool suits technicians who need consistent material removal in confined spaces.

Sustained output at 90 psi supply

At the required 90 psi the sander draws 27 cfm, so the compressor and hose must maintain that flow without pressure drop during extended runs. The fixed 20,000 rpm spindle speed stays constant under load because the governor does not hunt between settings. A 1/4-inch NPT inlet and 1/4-inch minimum hose keep plumbing simple for shop air systems. Continuous heavy-duty rating means the motor and gearing are designed for long sessions without thermal derating.

0.4 hp at 20,000 rpm decides fit

The single figure that determines whether this sander matches the job is the 0.4 hp rating at 20,000 rpm on a 2-inch disc. If the application demands higher torque at lower speed or a larger abrasive diameter, this model will not meet the requirement. Buyers needing variable speed control or integrated dust extraction should look elsewhere because the tool offers neither feature. Compatibility rests on matching the 1/4-20 spindle thread to the chosen abrasive system.