Half cylinder, System "Kf" 391-21/491-21

  • for interior and exterior use
  • together with respective DIN rim locks for fitting in engine cylinders (external products)

Half cylinder, System "Kf" 391-21/491-21


  • cylinders: nickel-plated brass (finish NI)
  • keys: nickel silver (except stock profile - nickel-plated brass)
  • standard drill protection


  • available in the systems Standard, X14, K14, Z14, XZ14, V14, XV14, KV14, Y14, XY14, Y14 Deltus, XY14 Deltus, KY14 Deltus, W14, XW14, KW14, Wavy Line, Wavy Line pro and Integral
  • 5 pin tumblers: standard length (C) = 36,3 mm
  • 6 pin tumblers: standard length (C) = 40,3 mm
  • salt-water resistance (finish CR, special pinning)
  • finishes: CR, MS, AUPO, BROA, AUMA (see Infobar - Special features for cylinders - "Cylinder finishes")


Profile cylinders

In our special range you can find special profile cylinders which are, together with respective DIN mortise cylinders, designed for an installation in engine cylinders. We manufacture according to DIN EN 1303, DIN 18252 and are ISO 9001:2008 certified. Here you will find more information and technical details on profile half cylinders, system „Kf“ as well as on profile double cylinders, system „K1“ and ...
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