The basics of our diaphragm centering technique consists of the use of stacks of laser-cut discs that have been cut to fit the profile to be centered and clamped.

The example shown here, the centering and clamping of a bar used to fabricate door-lock cylinders, uses discs that have been laser-cut to fit the profile of the bar on one side only. However the discs are stacked vice-versa to clamp on each side of the bar and a clamping mechanism (here a chuck) presses the discs against the bar. As a result one obtains a strong clamping and very precise thanks to the fact that the identical discs press from both sides cancelling possible fabrication errors of the discs.