A system and method for cleaning fiber utilizes interchangeable panels having different screen grid sizes. The panels are selectively installed on a fiber cage frame pivotally coupled to a tumbler frame for rotation of the fiber cage frame. A user selects a set of panels having a grid size suitable for a fiber to be tumbled. The selected panels are installed on the fiber cage frame and the fiber is inserted into a space within the fiber cage frame through an opening in the fiber cage frame made available by a not-yet-installed panel. The fiber cage frame is rotated after installing the final panel. The resultant tumbling thereby causes particles to fall from the tumbler cage frame. At least one installed panel is removed from the fiber cage frame, and the fiber is removed from the fiber cage frame through the resultant opening in the fiber cage frame.