Large Bore

HD large bore cylinders combine NFPA dimensional interchangeability and high quality components, offering excellent performance and long service life, even in the most severe conditions.  All cylinders are fitted with a heavy-duty external rod bearing, Teflon®-impregnated and hard coat anodized, ensuring smooth rod motion while maintaining rod rigidity.

  • Bore sizes:  5", 8", 10", 12" (all bore sizes offer an oversized rod option)
  • Maximum Operating Pressure:  250 PSI (5 in bore), 200 PSI (all others)
  • Precision machined
  • Floating rod bushing design "traps" lubrication in effective bearing area
  • Precision machined from high strength 6061-T6 aluminum alloy
  • HD Series offers numerous accessories and design options


Pressure Rating:  200 PSI Air (250 PSI Air for 5" bore)
Temperature Range:
-40° F (-40° C) to 250° F (121° C) standard, up to 400° F (200° C) available
Filtration:  Not essential but a 40µ filter will prolong seal life
Lubrication:  No additional lubrication is required
Head/Cap/Retainer:  Precision machined from high strength 6061-T6 aluminum alloy
Tubes:  Precision machined from 6063-T6832 aluminum alloy
Piston Rod:  Polished and hard chrome plated steel
Piston:  Precision machined from 6061-T651 aluminum alloy