Numatics B Series Compact Interchangeable Air Cylinder by Numatics Actuators and Motion Control


The Numatics B Series is a compact aluminum cylinder line that is designed to fit tight space requirements. The cylinders provide maximum reliablity while meeting all your space requirements. The B Series is an extremely capable product that will exceed all of your requirements. Additionally, the B Series includes non-rotating piston rod and double rod cylinders as a standard feature.

Standard Specifications:

  • Variety of mounts
  • Bore sizes from 3/4" to 4"
  • Piston rod diameters from 9/16" to 1"
  • Nominal pressure rating is 150 psi air
  • Standard temperature -10°F to 165° F(-23° C to 74° C)


  • Head and cap are 6061-T6 aluminum and clear anodized for corrosion resistance. Wide variety of mountings available.
  • Tube end seals are compression type and reusable.
  • 303 stainless steel rod with a roller burnished finish for long life.
  • 6061-T6 aluminum piston. Piston with magnet or wear band is optional. Note: these options add to cylinder length.
  • Buna-N O-ring piston seal. With low breakaway option, two Buna-N U-cup seals are provided. Note LB option adds to cylinder length.
  • Cylinder is pre-lubed with Super Lube for long life and smooth operation.
  • Dovetail grooves in tube enable use of Numatics "WORLD" switches and valve mounting brackets.
  • Contemporary style heavy walled profile tube is 6061-T6 aluminum with a hard coat inside diameter.
  • Captive one piece oil impregnated sintered bronze rod bearing.
  • Quad type Rod seal for double sealing efficiency.
  • Teflon back-up ring guards against rod seal extrusion and external contaminants


Numatics B Series Compact Cylinder Catalog
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