Air-O-Fan D-40R Diesel Engine Sprayers

Power, performance, and simplicity are what make this single reverse fan orchard sprayer model so desirable. The D-40R can effectively achieve complete coverage in big and tall trees. Citrus, Walnuts, almonds, pistachios, tree fruit, cherries, and apples are just few of the trees this machine serves. The D-40R is powered with a fuel-efficient John Deere © 173-horse power turbo diesel engine, Myers © 2-stage centrifugal pump. This reverse fan design leads the industry by eliminating the leaf plugging issues commonly associated with conventional rear suction fan designs. This design also eliminates chemical recirculation and makes daily service of vital components much easier. Coupled with our composite nylon adjustable air vanes, individual shut off valves, and ceramic nozzles, these technologies help direct the air and material to the desired location of the tree canopy for superb coverage, reducing chemical usage and drift.

Hide Gallery

Standard Equipment

  • 1,000 gallon or 500 gallon 304 stainless steel tank
  • 6.8L, 6068HF285 (415 cu. in.), 156 HP, turbo-charged tier 3 John Deere© diesel engine
  • Twin Disc© PTO clutch
  • 136 gallon fuel capacity saddle tanks
  • Myers © 2-stage, 100 GPM / 200 PSI centrifugal pump
  • Single 40" steel axial flow "reverse" fan
  • Galvanized fan housing
  • Composite nylon adjustable air vanes with specialty valves (2 nozzles per vane, 36 total)
  • Teejet© ceramic nozzles
  • 1" stainless steel mechanical agitation
  • AOF-stainless steel strainers (fill, suction, delivery)
  • Electric, hydraulic, or Morse© cable spray control valves (standard options)
  • In-cab remote gauge box with electric throttle, key switch, and Saur Danfos© DP-200 digital monitor
  • 21.5L x 16.1, 14-ply ribbed tires


  • Double or single lip swivel hitch
  • Radiator upgrade stainless steel fill connections
  • Electric bypass valve
  • 2" and 3" quick fill connections
  • Spray lights with guarding
  • Bravo© tree targeting systems
  • Fan housing leaf guard


  • Length............20' 6"
  • Width..............105"
  • Height.............62" - 72" (adjustable)
  • Weight............8,460 pounds
  • Air Velocity......140 mph (approximate)

Minimum Tractor Horse Power Requirement: 75