Premises

Fetching after the stop	The next mold, hoses and tools are fetched after the press stops, on most changes. We saw it on one change, mold shop staff said it is how a mold is fetched, and the job log's median of 63 minutes fits it. If this is wrong: the mold and its hoses are already at the press when it stops, and a cart saves nothing.
Minutes of waiting per change	About 15 minutes of each mold change is waiting that a ready cart removes. Our estimate, about a quarter of the median change. We did not time a change. If this is wrong: the timed change shows the waiting, and the figure follows it, about $1,400 per year for each minute.
Orders for the freed hours	Orders fill 70 percent of the press hours that are freed. A freed press hour is money only when an order fills it. About one order in seven shipped late last year, so orders do wait for presses. If this is wrong: the presses stand idle at other times, and the saving shrinks by the same share.