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Linear Actuators with NAMUR-interface

Linear Actuators with NAMUR-interface

Linear actuators with NAMUR-interface are widely used in the process industry. They are often used to automate Knife Gate Valves.

Hafner is now offering the brand-new LAZ-series.

LAZ Cylinder

The new LAZ-series at a glance:


  • NAMUR-interface according to VDI/VDE 3845 (NAMUR 1 – ¼“) at cylinder cap
  • Diameter 80, 100, 125 mm with profile tube
  • Diameter 160, 200, 250 and 320 mm with round tube and tie rods
  • All actuators are equipped with a magnetic piston and fixing possibilities for a proximity switch
  • Piston rod made from stainless steel


Mounting port pattern at cylinder head according to DIN 3358 / ISO 5210 for direct mounting to Knife Gate Valves


  LAZ Cylinder Front View 2                                  LAZ Cylinder Front View 1

Cylinders with diameter up to 125 mm with two NAMUR-interfaces, at the bottom and long side of the cylinder for maximum flexibility. Unused ports to be plugged.


 LAZ- NAMUR Interface 1


Starting diameter 160 mm only with one NAMUR-interface at the bottom.


 LAZ- NAMUR Interface 2



You can find further information in our documentation which can be downloaded here.

If you are interested in a quotation, please do not hesitate to contact us.

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