The SIFCO Process Traversing Arm provides mechanical oscillation or traversing motion for an otherwise manually-moved plating handle. Use of the SIFCO Process Traversing Arm eliminates the need to have an operator move a plating tool, decreasing operator fatigue and freeing him or her to perform other tasks. The mechanical motion control supplied by the Traversing Arm will improve the efficiency of any plating or anodizing operation, and will help to decrease plating cycle time, maximize deposit quality and improve uniformity. The Traversing Arm will accommodate all standard SIFCO Process plating tool handles, providing motion to virtually any size anode which can be attached to the plating tool handle. Speed control and effective length of movement are both easily adjustable for this unit.