Outside Track Bowl Feeders
This bowl features tracks that are directly above each other. The parts are directed to the outside where there is a long distance for tooling. If you need highly precise part orientation, have high feed rates, or need multiple feed lines, the outside track bowl is recommended. The downward pitch of the outside track allows easy separation and orientation of parts. By tooling on the outside instead of on the inside, parts tend to buckle and fall into the return pan instead of binding.
One of the considerations in determining the size of an outside-track bowl is in the opening in the wall that allows parts that do not feed out of the bowl to return to the inside. Adding a Surlyn coating to the bowl helps mitigate high noise and reduces the amount of grinding and polishing in keeping with FDA mandates.