Working Principle of Reciprocating Single Swing Arm Car Washer
Jul 15 2025

The reciprocating single swing arm car washer is a contactless fully automatic car washing structure. The main unit is fixed on the foundation, and the vehicle drives into the washing position and keeps stationary.

With photoelectric induction and vehicle contour detection, it automatically identifies the length, height and shape of different vehicle models. The single swing arm performs left-right rotation and front-back reciprocating swing, and intelligently plans the moving path according to the vehicle contour.


Through the high-pressure water system, it completes the whole process in sequence: high-pressure pre-rinsing, foam spraying, high-pressure deep cleaning, automatic wax coating and air drying.


There is no brush contact with the vehicle body throughout the process, relying entirely on high-pressure water flow for cleaning. Equipped with PLC intelligent electric control and safety anti-collision sensor, it supports automatic start-stop and fault self-diagnosis, realizing unattended fully automatic car washing.