Air-O-Fan Herbicide Sprayer

Herbicide spraying in some fashion has become common practice on any well maintained farm here on the west coast and it is not taken lightly here at Air-O-Fan. Common to our air-blast sprayer lines, the Herb 500 & 300 gallon have maintained the high quality standards that Air-O-Fan has always stood for. Standard features include 12.5L ribbed implement tires, HD hubs & spindles, 3 port pressure manifold w/regulator, 14 GPM (P-48 Comet) diaphragm pump coupled to a 4 to 1 gear reduction box w/neutral which is chain coupled to our standard 1" mechanical agitation system found on our PTO driven air-blast sprayer models. Herb also uses the same chassis, axle, and spray tank found on our G3 air-blast sprayer line, this commonality in parts helps our growers in the field with any down time that could be lost due to say (for example) a spindle failure. Options for Herb are no different, growers can add a front cover, quick fills, manual, hydraulic, or electric spray control valves, our Ace hydraulic drive centrifugal pump option w/jet agitation, hydraulically driven P-48 pump, different tire configurations, PBM spray boom options, and even our own skirted Eliminator spray boom option. Herb is undoubtedly the best built herbicide sprayer on the market today but with all the bell and whistle he does come at a price, the base unit is an affordable model and can be equipped to spray without to many options. Please give us a call or e-mail us, we would love to answer any questions you may have.

Standard Equipment

  • 500 or 300 gallon 304 stainless steel tank
  • 14 GPM / 425 PSI Comet® diaphragm pump
  • Single speed gearbox with neutral
  • Pressure regulator control with gauge
  • Heavy duty PTO shaft
  • 1" 304 stainless steel mechanical agitation
  • McPhee® suction filter with 304 stainless steel strainers
  • 12.5Lx16.1 10-ply ribbed implement tires
  • Heavy duty hubs and spindles


  • Manual Directo-Valve® spray valves
  • Hydraulic or electric valves (1, 2, or 3)
  • Hydraulic drive pump
  • Centrifugal pump with mechanical agitation
  • Centrifugal pump with jet agitation
  • 2" and 3" stainless steel fill connections
  • 300 and 400 gallon tank options
  • Multiple tire exchange options
  • Adjustable axle with spindle plate
  • Tank drain plumbed with valve
  • 13.5L ANS field and turf tire
  • AOF-Eliminator boom assembly
  • Full hydraulic Eliminator boom option
  • Full line of PBM® spray booms
  • Micro-Trak® rate controlling systems

Specifications 500 Gal.

  • Length 500 Gal. = 13' 6" (with adjustable boom)
  • Width 500 Gal. = 76"
  • Height 500 Gal. = 62"
  • Weight 500 Gal. = 1,850
  • PTO Horse Power Requirements 500:  40 (minimum)

Specifications 300 Gal.

  • Length 300 Gal. = 11' 7" (with adjustable boom)
  • Width 300 Gal. = 68"
  • Height 300 Gal. = 56"
  • Weight 300 Gal. = 1,000
  • PTO Horse Power Requirements 300:  30 (minimum)