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


Mounting Accessories
NFPA Pivot Bracket
NFPA Clevis Bracket
Rod End and Port Attachments
Alignment Coupler (#5-40 to 1"-14)
Jam Nut (#5-40 to 1"-14)
NFPA Rod Clevis
NFPA Rod Eye
Tie Rod Mounted Switches
CS-6200 Series