The electronic knob cylinder from Südmetall

Convenience and security in a locking system are becoming increasingly important in today’s world. The electronic knob cylinder “ÜLinder” from Südmetall can be installed in both small and medium-sized properties. The ÜLinder is a universally applicable locking unit.

It offers almost unlimited combination possibilities and the variable lengths of the cylinder allow installation in all doors. The compatibility of the cylinder with standard mortise locks makes retrofitting easy.

ÜLinder - elektronischer Knaufzylinder von Südmetall


  • simple retrofitting to existing doors
  • use in escape and rescue routes and fire doors (depending on version)
  • flexible control
  • sealed, water-protected knob in housing (IP 66 depending on version)
  • according to DIN 18252 and DIN EN 1303 as far as applicable for electronic systems

Modular design

Maximum flexibility can be achieved through a modular design.
A ÜLinder consists of the following components (to be ordered separately):

Modularer Aufbau ÜLinder - elektronischer Knaufzylinder von Südmetall

Product features

  • Electronic knob, 40 mm and 45 mm
  • Battery operated (two CR2 Lithium 3V batteries)
  • Nickel-plated brass housing and hard plastic cover
  • Simple installation by snapping the knob module into the cylinder
  • Inner knob mechanical 29 mm and 34 mm
  • Different lengths selectable
  • Cylinder, nickel-plated brass


Südmetall stands for modern technology and passion in a traditional market. For 25 years, founded in 1995 by Jakob Persterer, the company has been a reliable partner for trade and commerce. Today, Süd-Metall Beschläge GmbH has over 250 employees and is represented on (almost) all continents of the world. As an independent family business, it is one of the market leaders in the German-speaking region with the product ranges of fittings, glass and metal construction.
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