Every shop has that one part. The big one, the complicated one, the one with a show surface that someone in engineering will personally inspect under a lamp. You do not throw that part in a barrel and hope for the best. You put it on a rack.
Rack plating means each part gets fixtured by hand, hung on a rack, and lowered into the tank as an individual with a name and a future. Nothing tumbles. Nothing bangs into its neighbor. The current reaches it evenly because we positioned it to, and the finish comes out clean enough to satisfy even the lamp inspector.
This is the line for parts that are large, intricate, or appearance critical. It is also the line for low counts, where every piece matters and there is no margin to lose one. We handle them one at a time, plate them one at a time, and wrap them one at a time in kraft paper so they arrive looking the way they left.
Yes, it takes more labor than the barrel. That is the point. You are paying for a person to genuinely care about your part, which, around here, is a thing we have gotten weirdly good at over forty years.
Got a part that makes you a little nervous? That is exactly the part we want. Send it over, and we will treat it like it owes us money.