The ornamental design for a lowercone of a hydrocyclone cleaner, as shown and described.
FIG. 1 is a front perspective view of a lower cone of a hydrocyclone cleaner showing our new design;
FIG. 2 is a left side elevation view thereof;
FIG. 3 is a front elevation view thereof; and,
FIG. 4 is a right side elevation view thereof;
FIG. 5 is a rear elevation view thereof.
FIG. 6 is a top elevation view thereof; and,
FIG. 7 is a bottom elevation view thereof.
The broken line showing of the interior of the lower cone in FIG. 7 is for the purpose of illustrating features inside the cone and forms no part of the claimed design.