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Apr 1, 2009 12:00 AM
Recently I was asked for an opinion on the spraying of press cylinders for a press that was damaged — specifically, what that would do to the value of the press. An e-mail was sent to a group of my friends, and it elicited comments ranging from “no change” to “worthless.” I should have qualified the question in regard to the extent of the damage (and later did) and the fact that the press manufacturer stated that the cylinders needed replacement as well as many gears.
There are many items to be considered here (assume the damage is severe — a large wrench went through the press):
This is not to say that spraying for small “dings” is not OK. If the smash is small, spraying is fast and economical. There are many firms that will do this with cylinders in the press as no damage occurred to shafts for gears.
When all the opinions were in, the net result was this suggestion: Listen to the original press manufacturer. There is a gamble and there is a risk — what do you want to do?
Raymond J. Prince is a leading expert in pressroom technical and operational issues. He is vice president and senior consultant, operations management, NAPL (Paramus, NJ). Contact him at (605) 941-1492 or e-mail firstname.lastname@example.org.