AT4 84 HA

The AT4 84 HA comes with an 84cm cutter-deck and is powered by a high-performance 452cc STIGA single-cylinder engine. It features a hydrostatic transmission and collects clippings in a spacious 240-litre catcher. Optional mulch-kit available.
  • check Can collect up to 240 L cut grass
  • check Reliable and strong STIGA single-cylinder engine
  • check 84 cm cutting deck allows you to easily manage gardens up to 3500 m2
  • check Choose among 7 possible cutting height settings, to better fit your lawn's needs
  • check Effortless blade engagement through electromagnetic PTO clutch
With the Alpina AT4 84 HA Lawn Tractor, you’ll get powerful performance, excellent versatility and superior driving-comfort, all at an affordable price!
Delivering that powerful performance is a 452cc STIGA ST500 single-cylinder four-stroke motor that’s rated at a substantial 7.4kW; and which will prove quiet, clean, smooth and economical in operation, thanks to Alpina’s overhead-valve technology.
The AT4 84 HA has a foot-pedal-controlled hydrostatic drive; a desirable feature that enables you to control the ground-speed much like you would with an automatic-transmission car - the more pressure you apply to the pedal, the faster you’ll go!
A front-mounted bumper works to prevent engine-damage in the event of accidental impact; while an electromagnetic power-take-off clutch makes starting and stopping the blades an effort-free process.
Offering three mowing-modes - bagging; rear-discharge; mulching - and seven preset cutting-heights, the flexible AT4 84 HA can be configured to produce fantastic results, no matter what grass-conditions you’re faced with.
It’s equipped with bright but energy-efficient LED headlights, so it can be safely driven when the ambient light’s poor; and it benefits from a series of gauge-wheels that ensure the edges and corners of the deck won’t mark the turf when you’re executing turns on uneven ground.
This model has a relatively compact 84cm working-width and comes with a largest-in-class 240-litre collector.
More Information
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Short DescriptionThe AT4 84 HA comes with an 84cm cutter-deck and is powered by a high-performance 452cc STIGA single-cylinder engine. It features a hydrostatic transmission and collects clippings in a spacious 240-litre catcher. Optional mulch-kit available.
EAN/UPC8008984851344
Unique selling point 02Reliable and strong STIGA single-cylinder engine
Unique selling point 0384 cm cutting deck allows you to easily manage gardens up to 3500 m2
Unique selling point 04Choose among 7 possible cutting height settings, to better fit your lawn's needs
Unique selling point 05Effortless blade engagement through electromagnetic PTO clutch
Unique selling point 01Can collect up to 240 L cut grass
Key features 1 descriptionThanks to the capacious 240L grass collector, you can cut and collect for long sessions, without having to stop to empty the bag.
Key features 2 titleStart cutting!
Key features 2 descriptionSimply push a button and get mowing!
Key features 3 titleYou can always see what you are doing
Key features 3 descriptionThanks to the powerful front LED lights, you can continue mowing, even with low lights conditions.
Key features 1 titleLargest-in-class collector
Award 1 logono_selection
Award 2 logono_selection
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Certification CE logono_selection
Certification EAC logono_selection
Engine BrandSTIGA
Engine modelST 400 Powered by STIGA
Displacement414 cm³
Engine rotation speed2400 rpm
Battery Voltage12 V
ChokeManual
Engine coolingAir
Fuel tank capacity6 l
Maximum working area3500.000000
Battery capacity18 Ah
Power sourcePetrol
Power6.3 kW
Cutting width84 cm
Reverse mowingYes
Blade rotationUntimed
Cutting height adjustmentManual with lever
Cutting height positions7 positions
Cutting height range25 - 80 mm
Number of blades2
Additional cutting methodRear discharge, Mulching
Blade engagement typeElectric
Minimum uncut radius80 cm
Cutting methodCollecting
TractionRear-wheel drive
Transmission methodPedal-operated
Transmission typeHydrostatic
Collector emptyingManual
Collector capacity200 l
Steering wheelAlpina ergonomic
Seat typeAlpina smart with low back support
Seat adjustmentScrews
DashboardYes with LED
Front wheel size15x6.00-6
Rear wheel size18x8.50-8
Hour meterNo
HeadlightsConventional
Cruise controlNo
BumperYes
Washing linkYes
Collector typeTextile
Storage compartmentYes
Cup holderYes
Pivoting front axleYes
Antiscalp wheels2
Safety systemSeat with Safety Contact Breaker
Mulching kitOptional
Battery chargerOptional
Trailer hitch kitOptional
Guaranteed sound power level (LwA) - dB(A)100
Measured sound power level dB(A)100
Measured sound pressure level at operator ear dB(A)86
Max vibration on driver's seat (m/s2)1.06
Max vibration on steering wheels (m/s2)6.37
Pack weight230.5 kg
Product length2338 mm
Product width880 mm
Product height1100 mm
Product weight167.000000
SKU2T2100404/A22
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Key features

Product details and specs

With the Alpina AT4 84 HA Lawn Tractor, you’ll get powerful performance, excellent versatility and superior driving-comfort, all at an affordable price!
Delivering that powerful performance is a 452cc STIGA ST500 single-cylinder four-stroke motor that’s rated at a substantial 7.4kW; and which will prove quiet, clean, smooth and economical in operation, thanks to Alpina’s overhead-valve technology.
The AT4 84 HA has a foot-pedal-controlled hydrostatic drive; a desirable feature that enables you to control the ground-speed much like you would with an automatic-transmission car - the more pressure you apply to the pedal, the faster you’ll go!
A front-mounted bumper works to prevent engine-damage in the event of accidental impact; while an electromagnetic power-take-off clutch makes starting and stopping the blades an effort-free process.
Offering three mowing-modes - bagging; rear-discharge; mulching - and seven preset cutting-heights, the flexible AT4 84 HA can be configured to produce fantastic results, no matter what grass-conditions you’re faced with.
It’s equipped with bright but energy-efficient LED headlights, so it can be safely driven when the ambient light’s poor; and it benefits from a series of gauge-wheels that ensure the edges and corners of the deck won’t mark the turf when you’re executing turns on uneven ground.
This model has a relatively compact 84cm working-width and comes with a largest-in-class 240-litre collector.

Technical specs

General info
EAN/UPC8008984851344
SKU2T2100404/A22
Cutting system
Cutting width84 cm
Reverse mowingYes
Blade rotationUntimed
Cutting height adjustmentManual with lever
Cutting height positions7 positions
Cutting height range25 - 80 mm
Number of blades2
Additional cutting methodRear discharge, Mulching
Blade engagement typeElectric
Minimum uncut radius80 cm
Cutting methodCollecting
Transmission
Transmission methodPedal-operated
Transmission typeHydrostatic
Tools kit
Mulching kitOptional
Battery chargerOptional
Trailer hitch kitOptional
Overall dimensions
Pack weight230.5 kg
Product length2338 mm
Product width880 mm
Product height1100 mm
Product weight167 kg
Power
Engine BrandSTIGA
Engine modelST 400 Powered by STIGA
Displacement414 cm³
Engine rotation speed2400 rpm
Battery Voltage12 V
ChokeManual
Engine coolingAir
Fuel tank capacity6 l
Maximum working area3500
Battery capacity18 Ah
Power sourcePetrol
Power6.3 kW
Drive system
TractionRear-wheel drive
Equipment
Collector emptyingManual
Collector capacity200 l
Steering wheelAlpina ergonomic
Seat typeAlpina smart with low back support
Seat adjustmentScrews
DashboardYes with LED
Front wheel size15x6.00-6
Rear wheel size18x8.50-8
HeadlightsConventional
BumperYes
Washing linkYes
Collector typeTextile
Storage compartmentYes
Cup holderYes
Pivoting front axleYes
Antiscalp wheels2
Safety systemSeat with Safety Contact Breaker
Vibration and noise data
Guaranteed sound power level (LwA) - dB(A)100
Measured sound power level dB(A)100
Measured sound pressure level at operator ear dB(A)86
Max vibration on driver's seat (m/s2)1.06
Max vibration on steering wheels (m/s2)6.37

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