MARKING-SYSTEMS 54 PAUL-ROELTGEN-STRASSE 10 · D-42699 SOLINGEN · TELEPHONE: +49 212 / 33 99-0 · FAX: +49 212 / 33 99 11 · WWW.ROELTGEN.DE · INFO@ROELTGEN.DE Standard font As its standard font, Röltgen uses the font DIN 1451. However, any other font can be used. DIN 1451 characteristics: Fig. top left: DIN 1451-2 narrow Fig. top right: DIN 1451-3 mid narrow Fig. bottom left: DIN 1451-4 mid Fig. bottom right: DIN 1451-5 wide Type of engraving and font size The engraving style determines the print and the stamping force. e.g. a sharp engraving style requires less stamping force than a flatter one. If low-stress designs are required, pointed engraving is preferable. The font size (or character height) is always measured from the highest, outermost point of the engraving. It is best to first test the stamp using an ink pad and paper on a hard surface. This will allow you to measure the precise font size. Engraving orientation The engraving orientation determines whether the print is legible directly or as a mirror image. This is to be taken into account when the medium is to be stamped from the back, but read from the other side (e.g. blister packaging). Left-hand-engraving = print directly readable Right-hand-engraving = print not readable (mirror image) Calculating marking force In order to select the correct press, it is important to know the required marking force. This can be determined using the following formula. S = F x T x ND S = marking force in N F = factor (see table) T = tensile strength in N/mm2 of material being marked ND = number of digits Example: Marking 6 characters in 5 mm character size in S 355 J0 (1.0553) S = 17 x 500 x 6 = 51000 N = 51 kN Subject to change. 05-14 sharp round outline Left-hand-engraving stamp print Right-hand engraving stamp point flat 2 print 2 character size fielding in mm factor 1 3,4 1,5 5 2 7 3 10 4 14 5 17 6 20 7 23 8 27 10 32 12 40