Heidelberg Platen E vs N suffix
Hello, I understand that Heidelberg Platen serials with suffx:
– N: Standard European type height of 0.927 inches (23.55 mm).
– E: Export American / English type height of 0.918 inches (23.32 mm)
My question is, how does this impact chase + impression?
– Am I correct to say that a GTP with N, requires a taller N chase?
– If a shorter E chase + type high die is inserted instead, will it be tall enough?
– Can extra impression on a GTP make up for this?
Context: I’m considering adopting a Platen GTP foil stamper with N suffix, and worried that it won’t be compatible with E chase + bunting base + dies.
Thanks for any pointers!
The difference is only 9 thousands of an inch so chases are probably the same. The only issue is type height. Using .918 material on an N machine will require the type or blocks to be raised but .927 material ideally should not be used on an E machine
Agreed on the chase height. The chase is a “Non Impression” item. It does not contact the sheet so it’s actual height can vary a small amount without affecting anything.
You will want to use the type height that the oress is set for.
Imagine a closed book
The covers are parallel. Stick a sheet of paper in there and things are still fine. Now put a pencil in it and see how covers are no longer parallel. Cut a bunch of pages out, and parallelism is wrong also.
Clamshells are good presses, just sensitive to proper type and packing.
Chases are the same regardless of E or N.
A question I have, to piggyback on this post, where is the difference between the two models? Has the bed been machined for .927 or is it made up on the tympan side or the adjustment in the impression handle? Or a combination of all.