Numatics KG Series Cylinders by Numatics Actuators and Motion Control

The Numatics KG Series is a line of air cylinders that is designed and built to excel in the most challenging applications. Furthermore, the product line encompasses many value-added features and benefits that you expect from a Numatics cylinder.

Additionally, aluminum tubes are standard on 1-1/2" – 8" bore cylinders (with the exception of 7" bore). The aluminum tube is hard coat anodized. The hard coating is an electro-chemical process, which produces a very dense surface of aluminum oxide. Composite tube is standard on 7" and 10" – 24" bore cylinders. Our composite tubing is a robust material that weighs less than traditional metallic materials. Composite tubing is also an option on 1-1/2" – 6" and 8" bores.

Standard Cylinder Specifications:

  • Bore sizes from 1-1/2" to 24"
  • Piston rod diameters from 5/8" to 3-1/2"
  • Nominal pressure rating is 150 psi air
  • Standard temperature -10°F to 165°F (-23°C to 74°C)
  • Optional low temperature seal -40ºF to +165ºF (-40ºC to +74ºC)
  • Optional Viton Seals 0ºF to +400ºF -17ºC to +204ºC
  • NPTF ports


  • This surface has extreme hardness (60 RC.), excellent wear and corrosion resistance, and low coefficient of friction.
  • End caps are accurately machined from precision square steel blocks.
  • End caps are either painted with standard black paint or painted with black epoxy paint. Note that standard black paint is the standard and the black epoxy paint is an option.
  • A recess on the piston-mating surface (at both ends) enables the air to work on a larger piston area for effortless breakaway (even at both ends).


Numatics KG Series Catalog
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