Metal Finishing Guide Book


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Figure 8. Jessup cylindrical vs. hex barrel comparison. k) Bar code or keypad interface for recipe input. l) Load-by-load data capture, storage, and export. Except in cases where simple fixed process cycles run, or where machine management and data recording is unnecessary, PC/HMI operation of finishing systems is standard for all new machines. Retrofits are easily accomplished. They often include machine position sensors, rinse water control systems, and programmable chemical feed pumps. Machine monitoring, management, load-byload data recording and paperless quality management features offer quick return of customer investment. 2) Programmable, recipe-based individual cell rectification enables precise, repeatable plating thickness for every load regardless of part Jessup barrel Cu. Ft. Anode-towork spacing inches* Difference Cu. Ft. Difference % 4.0 3.32 .68 17% Constant Barrel fill @ 33%, cubic feet Hex barrel Cu. Ft. Average Difference In. Difference % 5.5 6.25 .75 12% Table 1. Jessup barrel vs. hex barrel design. *The hex barrel anode-to-work spacing distance is the average of the nearest to the farthest spacing. 760

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