SM 52 Back Cylinder Cleaning

[kbauv10cperfector]

Originally Posted by RGPW17100

We have a 5 color SM52 that perfects 3/2. After the perfector we have the rough surface back cylinders. When using the cloth cylinder and blanket cleaners to automatically clean the cylinders the rough material in the cylinders make the cloth lint up real bad on the cylinders. I tried using water, water misable presswash, typewash and MRC and nothing seems to cut this lint. What are others doing. Just hand cleaning these cylinders or is there a trick to get this stuff off of the clylinders.

I know what your talking about with the lint. We have 5 of these on our press but we print mostly uv so I'm not sure how much help I can be. The sad truth is they are very hard to keep clean. We adjust the packing to be just under the size of the sheet to keep any ink of the back cylinders. Our problems have been when we have made mistakes in sizes for the packing or just plain forgot to change. We don't use the auto rolls at all that are on this press they just create more of a mess than its worth. We are very careful to keep clean. When they do get dirty I have found the best thing to do for us is to us those green scratch pads with hot water and amonia and a quick swipe of a clean dry rag is best. (Don't let the amonia and water run into the grippers)

[kbauv10cperfector]

I know what you mean. We don't use our auto roll cleaners on our cheese grater backcylinders at all becouse of the lint. We are very careful to keep clean. (we use mostly uv ink) We cut packings just under sheet size. The only time its a problem for us is if someone forgets to change packing or makes a mistake. If a mistake is made on paking size it can send ink to the back cylinder and what we have found to work the best is hot water, amonina and a green scratch pad. Be careful not to get green scratchy too wet and then wipe quick with clean shop rag. I think the key here is you don't need to get completely dry because if you do the shop rag begins to fall apart. hop this helps.

[RGPW17100]

I have switched to straight V120 instead of mixing it with water for that reason. Last thing I was is to deal with rust. Pressman is back tomorrow and I am taking Friday off. If he wasnt so ugly I would probably kiss him then again good thing he is ugly. I will post back what he does to clean them and also when we try the white cloths.

[RGPW17100]

Update. Press operator says he uses a dry rag to clean the lint off in the morning. I have tried this but have not had much luck. We tried the white perfecting cloths from Heidelberg and they work great. Because of how thick the towels are I suspect there is no where as much length on a roll at about the same cost per roll. Either way I feel this is the way to go.