In article .com, "slakka" wrote:

I suggest the closing door is causing vibrations within the
frame and/or surrounding structure. In that case, you really
need a hydraulic closer/damper, unless you want to replace
frame and surrounding structure. The closer, if properly
installed and adjusted will make it impossible to close
the door in anything other than a very gentle manner.

Right a closer. Isn't that called a Rixon/Rixen?

Rixon is one brand. A major one, I think.

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