Delem DA-52s Reference Manual page 28

X-safe . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .SN
Calculated safety zone (minimum X-axis value), which will be used in the case an R-axis
is mounted. This to prevent finger to die collision. The indicated minimum value is
computed automatically from the die dimensions as follows:
X-SAFE = FS + ½ V in which:
FS = flat section on the back side of the V-grove
V = opening value
In this formula also a small additional safety value (0.5 mm) has been added.
Resistance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .R
Maximum allowable force on the die in kN/mm.
V0812, 3.6