Seed-Drill Airspeed AS4
OVERVIEW
The folding pneumatic seed-drill Airspeed AS4 is a revolutionary machine, thanks to its Alpego patented system, which allows the transfer of the seeds from the front hopper to the small container placed at the rear on top of the power harrow, thereby guaranteeing a better drilling precision, less waste of seeds and a very good balance of the tractor.
Its combination with the Alpego Rubber disc coulter bar is particularly efficient, since it makes drilling possible under any type of soil: sandy, hard or very wet and sticky.

FEATURES
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Folding version
Reduced overall dimensions. Maximum width 2.50 meters
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ASD Distribution head
Distribution head made of stainless steel.
The lid can be opened to make cleaning easier.
Set-up for the electric device for the reduced-size drilling (APD) -
Large capacity hopper
Big hopper extending on request.
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Volumetric metering unit DOSAL
Highest use flexibility of the volumetric metering unit: suitable for small and large seeds and fertilizer (from 1.8 to 350 kg/ hectare) with a few simple adjustments.
Built in wear-resistant stainless-steel materials for maximum reliability.
Suited also for processed seeds or fertilizers.
- Improved drill calibration, easy recovery of the product during the calibration process, thanks to the swinging flap.
- Speed-variation through gears
- Volumetric adjustment for large and fine seeds
- Quick access, even to the lower part of the venturi for better cleaning
- Large opening for the clearing of the metering unit. This is particularly useful when preparing the machines for storage
- Quick rear discharge of the seeds which can be shut even with a full hopper
- Practical bag and digital dynamometer for weighing during the calibration process
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Alpego Rubber seeding element
Each Alpego Rubber seeding element is mounted on 4 silent blocks that guarantee a maximum pressure of 60kg.
This allows for a uniform working depth in every soil conditions. It also allows to overcome any possible obstacle.
- Silent Block, elastic system on each seeding element. Does not need servicing.
- Protection plate, the protection plate shields the seed flow until its contact with the seeding bed for a uniform sowing action.
- Disc Coulter, slightly leaning 355 mm disc coulters with sharp edge for an optimum and uniform penetration in all conditions.
EQUIPMENT & SPECIFICATIONS
- EQUIPMENT
POWER Equipment:
- Multi-function computer for the control of: fan + metering unit + hectare counter + tramlines + sawing management
- Distribution head outside of hopper
- Radar for detecting forward speed
- Hydraulic distribution fan
- Pneumatic transfer of the seeds by means of an hydraulic suction pump
- Intermediate hopper with a total volume of 150 liters
- Volumetric metering unit for large and small seeds
- Conveying hose between the hoppers
- Quick emptying of the hopper
- Electronic motor for the volumetric metering unit
- Electronic sawing test, This allows to change sawing quantities without acting directly on the metering unit
- Dynamic variation of sawing quantity
- Pre-Start function: early start-up of the calibrating unit
POWER-PLUS Equipment (adds to Power equipment):
- Tram-Line system (4 exits)
- Second seed level for front hopper
- TECHNICAL DATA
Mod. mm. mm. mm. mm. Kg Airspeed AS4-400 4000 2500 32 125 974 Airspeed AS4-450 4500 2500 36 125 1039 Airspeed AS4-500 5000 2500 40 125 1104 Airspeed AS4-600 6000 2500 40 150 1184 Airspeed AS4-600 6000 2500 48 125 1270
OPTIONS
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Computer for POWER version
POWER multifunction computer:
- Fan
- Metering unit
- Hectar counter
- Set up for the Tramline
- Sowing management
- Pre-Start
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APD – Electronic device for the reduced-width seed drilling
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Tramline
Central device for the control of the Tramline with shut-off valve.
It makes it possible to use all the cycles foreseen by the most popular weed-controlling and pulverization systems.
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Following harrow
The following harrow is a device at the rear of the coulter ant it consists of a rake which cover up the drilled seeds when going over them.
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Pre-emergence weeding discs
The pre-emergence weeding discs mark the gauge of the wheel track combined with the tramline system.
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Row-marking disc
The row-marking disc is a device which marks a reference line in the ground in order to make the drilling operation easier.
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Small rubber wheel for depth control
The small rubber wheel for depth control is a device which makes it possible to adjust the depth of each drilling coulter disc.
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Hydraulic bar exclusion
The shut-off of the hydraulic drill bar makes it possible to lift – and therefore – shut off the drill bar.
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Hopper extension
Hopper extension, 1400 liters (+ 400 liters)

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