D55168 Specifications, Features & Compatibility Guide

Engineering of the DeWalt D55168 centers on the high-pressure 225 PSI tank rating, which stores significantly more potential energy than a standard 150 PSI unit of the same 56.78 L displacement. The 1.19 kW universal motor drives the pump at approximately 1750 RPM, a speed optimized for balancing the 5 CFM airflow with the heat dissipation requirements of an air-cooled, oil-free piston design. The belt-drive configuration isolates the pump from direct motor vibration, contributing to the relatively low 78 dB(A) noise signature. By utilizing a 120V AC 15A electrical draw, the D55168 maximizes the performance threshold of a standard household circuit, delivering the 5.0 SCFM @ 90 PSI required for continuous-run tools. The vertical tank orientation is not merely for space-saving; it also simplifies moisture management, as the ball drain valve is positioned at the lowest point of the 15-gallon vessel. The inclusion of a high-flow regulator and a 1/4 in NPT quick coupler ensures that the 225 PSI stored pressure is effectively transitioned to the 90 PSI required by standard pneumatic tools without restrictive flow loss.