top of page

Numatics S Series Stainless Steel NFPA Interchangeable Cylinder

Numatics, nfpa cyclinders, ontario, GTA, macromotion, canada


The S Series is a stainless steel NFPA Interchangeable pneumatic cylinder line. It is designed and built to perform in the toughest "wash down" applications. The stainless steel construction provides outstanding corrosion resistance while including a multitude of favorable design features. The S Series encompasses many of the same proven design features as our original NFPA Interchangeable cylinder, the A Series. This includes an extra long rod bushing and a standard oversized wear band (located on the rear of the piston). Additionally, we have also included the proven "T" Seal piston seal configuration with carboxilated nitrile with self-lubricating PTFE® compound. These are just a few of the features that make the S Series the Superior Stainless Steel NFPA Interchangeable air cylinder line.


Standard Specifications:


  • Meets NFPA specifications

  • Bore sizes from 1-1/2" through 8"

  • Piston rod diameters from 5/8" to 1-3/4"

  • Nominal pressure rating is 150 psi air

  • Standard temperature -10°F to 165° F(-23° C to 74° C)

  • All stainless steel construction, except piston (aluminum)

  • NPTF ports

  • Flexible port and cushion location




  • Head and cap are machined from 304 stainless steel for corrosion resistance.

  • Superior port design allows increased flow rate.

  • Piston is solid aluminum alloy that is strong and lightweight.

  • Extra wide wear band is located at the furthest point from the rod bushing to support maximum loading.

  • Piston seal is a carboxilated nitrile with PTFE compound for no lube added service. The seal design prevents rolling and seals at all pressures.

  • Tubing is 316 stainless steel with hard chrome plated inside diameter for long service.

  • Floating cushion design gives the fastest stroke reversal possible by providing instantaneous full flow to piston. Each cushion has flush, retained adjustment needle.

  • Rod seal is carboxilated nitrile with PTFE compound. The rounded lip design insures proper sealing and long life for no lube added service.

bottom of page