Jacobsen AR-321 Rotary Contour Mower

  • Revolutionary new TrueDeck™ deck with exclusive downdraft blade keeps clippings suspended longer for exceptional mulching results.
  • Exclusive three-tiered discharge opening distributes clippings more evenly for a superior after-cut appearance.
  • Large overhang of left front deck for easy mowing around obstructions and hazards.
  • Weight-transfer through on-demand traction control allows operator to select optimal gripping power on varied terrain.
  • Please Note: Due to legislation requiring technical manuals to be printed in multiple languages, this product may not currently be available for purchase in all non-English speaking countries.  Please contact your nearest distributor or Contact Us for full details.

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Available on back-order

£33,961.00 Ex. VAT

Available on back-order



Equipped with advanced new TrueDeck™ cutting units, the AR321 makes it easier than ever to deliver a superior quality of cut to all corners of your facility. The AR321 offers everything a turf professional requires to flawlessly trim their facility. With superior traction capabilities and a powerful Kubota® diesel engine, the AR321’s climbing ability enables you to tackle your steepest topography, while the operator platform creates safe, easy access and exceptional visibility.






Jacobsen AR Series

Additional information


Engine Type:Tier 4 Interim: Kubota® D1105-TE, 3-cylinderTier 4 Final: Kubota® D1105-E4B 3-cylinderHorsepower:EPA Tier 4 Interim: 24.5 kW @ 3000 rpmEPA Tier 4 Final: 18.5 kW @ 3000 rpmDisplacement:EPA Tier 4 Interim/Tier 4 Final: 1123 ccAir Cleaner:Dry Cartridge typeCooling System:Pressurised, sealed cooling system; coolant capacity: 5.3 litresLubrication:Pressurised system with replaceable full flow filterFuel Capacity:45.42 LOil Filter Type:Replaceable spin on typeElectrical System:12 V starter; 30-amp alternator/regulator Speed (Maximum) Mowing:9.7 km/hTransport:14 km/hReverse:6 km/h Traction and Drive Traction System:Parallel-series "on demand" 3 WDDeck Drive:Fixed displacement hydraulicHydraulic System:25 L capacity; hydraulic oil monitor and horn alarm; GreensCare™ biodegradable oil Tires, Brakes, and Steering Front Tires:20 x 12 – 10 Turf Trac 4 prRear Tires:20 x 10-8 Turf Trac 4-plyService Brakes:Dynamic braking through hydrostatic driveParking Brake:Hydraulic wet disc brakes on the front wheelsSteering:Hydraulic power steering with tilt wheel Decks and Cutting Units: Number and Size:Three 686 mm rotary mulching/rear discharge decksConstruction:Heavy-duty, welded 4.4mm gauge spun deckCutting Unit Lift:Joystick actuated with cross-cut lift positionWeight Transfer:Hydraulic weight transfer – electronically adjustable at operator controlsBlade Material:Hardened, carbon steel alloyMotor/Spindle:Fixed displacement, self-lubricating with 2.54 cm diameter shaft; double sealed bearingsHeight of cut:19 mm – 89 mm in 6 mm increments; no tools required for adjustmentCutting Capacity:1.7 ha/hrOverall Cutting Width:1.71 m Weight and Dimensions Weight:1040 kgLength:3.12 mHeight with OPS:1.82 mWheelbase:1.51 mWidth:1.89 m


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