Advice about perforation force (SG2/SG3-300)

[Krozan]

Hello everyone.

I am coming to you for some clarification/information.

I have been working on 4 SG2-300s and 1 SG3-300 for several months. I don't have any approved training and I had various problems with the cutting parameters.

I work on monomeric vinyl 100 microns thick and I use Versawork software as well as Angle 50°, Offset 0.25 mm blades, Reference ZEC-U5025.

I always manage to have clean cuts, however my parameters can vary enormously and I would like to know the maximum force not to exceed so as not to damage the machines.

Attached is a screen of my settings.

When the blade is new, I start with a punch force of 110-115 for a clean cut, but with wear I go up to 240 currently and the cuts are clean.

I would therefore like to know how high it is recommended to increase the perforation force.

Also maybe some of my settings need to be reviewed.

Thank you in advance for your advice.

 

[Jim Hancock]

It would be easier for most of us to be able to help if you could post the screen shots of your settings with the system in English.

 

[Roland Certified Tech]

You can increase the force as much as you need to to cut through the material and the backer. That’s basically all there is to it. As the blade ages, yes you will need more force. There is no magic number and printer to printer can vary.
My go to perf cut blade is the Roland ZEC-U3050 blade.
being a 60° blade, it works way better going through anything five mil and thicker

 

[SlikGRFX]

When perf cutting or thru cutting, the blade depth is crucial. If you don’t have enough blade extension then it won’t cut all the way through no matter how much pressure you use. Likewise if you have too much blade extension then you will quickly damage cut strips and blades. Tuning perf cut using pressure without setting the blade depth properly will lead to inconsistent results.

You need just enough blade extension to cut through the vinyl and a relatively high pressure so that the perf cut is consistent. As the blade and blade holder wears down you will need to adjust blade depth. We rarely change the perf cut pressure settings.