The ornamental design for a powderspraycoatingcart, as shown and described.
FIG. 1 is a left side view of a powder spray coating cart bearing the design and having a control unit rotated in the position 0° and a cylindrical container;
FIG. 2 is a right side view of the powder spray coating cart of FIG. 1;
FIG. 3 is a back-right perspective view of the powder spray coating cart of FIG. 1;
FIG. 4 is a front-right perspective view of the powder spray coating cart of FIG. 1;
FIG. 5 is a front view of the powder spray coating cart of FIG. 1;
FIG. 6 is a bottom view of the powder spray coating cart of FIG. 1; and,
FIG. 7 is a top view of the powder spray coating cart of FIG. 1.