Technische Handelsonderneming Nederland b.v.
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Technische Handelsonderneming Nederland b.v.

Postbus 390
7500 AJ Enschede
T. +31 (0)53 432 34 46
F. +31 (0)53 430 71 58
Technische Handelsonderneming Nederland b.v.

Postbus 390
7500 AJ Enschede
The Netherlands
T. +31 (0)53 432 34 46
F. +31 (0)53 430 71 58
E. info@thn.nl

Office:
H. ter Kuilestraat 30
7547 BD Enschede
The Netherlands

FK2 / FK4 - Laminar piston rings


FK2 en FK4 applications

Applications

FK2 rings are used for FK4 rings are used for
  • Internal combustion engine pistons
  • Compressor pistons
  • Pneumatic and hydraulic cylinders
  • Shock absorbers
  • Drop-forge hammers
  • Stamping presses
  • Presses
  • Hydraulic units

FK2

"FK2" laminar rings can be used for both new and used internal combustion engines in conjunction with standard cast iron piston rings. Cast iron piston rings are less suitable for pistons intended for hydraulic and pneumatic applications, compressors and shock absorbers. Please contact us for details, sizes and available materials.

FK2 Detail toepassingen

FK4

FK4 toepassing

"FK4" laminar rings for pistons for drop-forge hammers, stamping presses, presses and hydraulic units. Please contact us for details, sizes and available materials.


Materials

Material Temperature Surface treatment Colour
C75S DIN 1.0605 max. +300°C oiled varying ¹)
C60E DIN 1.1221 max. +300°C oiled varying ¹)
50CrV4 DIN 1.8159 max. +400°C oiled varying ¹)

¹) The colour of the laminar rings may vary between silver, light brown and black as a result of the heat treatment.


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