Includes
Dry Materials Feeders; Parts Feeders.

Excludes
Aggregate and Fines Feeders; Conveyor Feeders; Water Purification Dry Chemical Feeders.

Notes
Materials handling equipment included in this class is restricted to those materials feeders and parts feeders that serve as a conveying device, and by which the rate of delivery of bulk materials, packages, or objects may be controlled. Items included in this class are synchronized with companion machinery, feeding predetermined amounts, by volume, of specific materials accurately and continuously from storage bins or hoppers to process or mixing machines, and are interchangeable between machines. Excluded from this class are conveyor feeders (i.e., apron, belt, chain, flight, pan, etc., adapted for feeder service) that are classifiable in Class 3910 and/or Class 3895, as appropriate.

Possible NAICS Codes
333922 – Conveyor and Conveying Equipment Manufacturing
332439 – Other Metal Container Manufacturing
311119 – Other Animal Food Manufacturing
339999 – All Other Miscellaneous Manufacturing
333998 – All Other Miscellaneous General Purpose Machinery Manufacturing
333993 – Packaging Machinery Manufacturing
332510 – Hardware Manufacturing
334513 – Instruments and Related Products Manufacturing for Measuring, Displaying, and Controlling Industrial Process Variables
333996 – Fluid Power Pump and Motor Manufacturing
212321 – Construction Sand and Gravel Mining