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Modern single grain seeding technology

Maestro DV

HORSCH Maschinen GmbH Products Seeding technology | Maestro DV

Maestro DV

WITH AIRVAC SYSTEM – PRECISE – VERSATILE

AirVac – the new generation of vacuum singulation

The AirVac metering device can be used universally for an exact grain singulation. Due to different metering discs, maize, sunflowers, sugarbeet, soybeans and rape can be singulated reliably.
The AirVac system is based on the principle of vacuum singulation where the seed is sucked to a perforated disc. During the metering process the accepted grains pass through a scraper that sees to it that doubles are removed. The special feature of the AirVac scraper is that the user does not have to carry out any adjustment works. The contour of the scraper has been optimised in such a way that a reliable singulation for all crops is guaranteed.
Via a fall tube the AirVac metering device leads the seed to the bottom of the furrow. A grain sensor is integrated into the fall tube to guarantee an optimum monitoring of the seeding success. The measuring technology of the sensor is able to count the grains, to determine the spacings between the grains and thus also to transmit an information to the driver with regard to double spots or gaps.
The transmitted values of the singulation accuracy are displayed clearly at the terminal of the machine and additionally increase safety while sowing.
The AirVac singulator is driven electrically as a standard and each row can be controlled individually. This technology co-operates with the well-proven functions single row switch-off, SectionControl, VariableRate and tramline control.
For VariableRate the AirVac system is designed in such a way that the seed rate can be modified for every single row. With the tramline control it is possible to individually adapt the seed rate in the row at the left and the right side of the tramline. With these advanced functions all measures to increase precising while sowing can be used to full capacity.

AirVac

  • Can be used universally for different crops
  • High precision for sowing speed up to 12 km/h
  • Simple handling: no adjustment of the scraper required
  • Electric drive as a basis for:
    • SectionControl
    • VariableRate
    • Tramline control

Maestro DV

Modern single grain seeding technology

  • Versatile single grain seeding technology for: maize, sunflowers, sugarbeet, soybeans, rape
  • Simple handling of the metering device – no adjustment of the scraper required
  • Solid and reliable technology – heavy parallelogram and row unit for highest strain
  • Coulter pressures up to 260 kg for safe sowing even in difficult conditions
  • Automatic, soil-dependent coulter pressure adjustment AutoForce with coulter pressures up to 350 kg per row
  • High hectare output due to long range for fertiliser and seed
  • Compact unit with low demands on the tractor

Maestro DV

The allrounder amongst seed drills

The very compact unit Maestro DV that consists of a high-capacity seed wagon, a seed bar with 6 m working width and a single grain seed bar with 8 rows guarantees high efficiency combined with comparably little requirements on the tractor. As a seed bar can be linked via a 4-point linkage it is possible to attach a Pronto NT seed bar with a working with of 4 or 5 m for seeding. Thus, the Maestro can be used even more universally and becomes an all-rounder among the seed drills.
To meet all customer requirements in an optimum way, two configurations of the seed wagon of the Maestro DV are available.

Single hopper for fertiliser

The 2 800 litre hopper is used to apply fertiliser via the coulters of the underground fertilisation. In this case, the seed is supplied in the large individual row boxes with a capacity of 70 litre.

Pressurised double hopper for two components

If the Maestro DV is equipped with a Pronto NT seed bar the 3 500 litre double hopper can be used to apply seed and fertiliser into the seed slot at the same time (Grain & Fertiliser system). As an alternative, the double hopper with the single grain seed bar can be used to apply two different components via the underground fertilisation unit.
For both versions the hopper is equipped with the well-proven HORSCH metering technology and can supply the underground fertilisation system respectively the seed bar of the Maestro reliably and precisely.
The row body of the Maestro DV is equipped with a wide, sturdy parallelogram and, as a standard, with springs to create the coulter pressure. Thus, coulter pressures up to 260 kg per row can be generated mechanically. As an option, it is possible to equip the machine with hydraulic cylinders to generate the coulter pressure. Thus, the innovative coulter pressure regulation system AutoForce carries out the coulter pressure adjustments up to max. 350 kg per row. The weight of the seed wagon is used to generate the coulter pressure over the whole width of the machine and relieves the seed wagon tyres while sowing.

Maestro DV – in brief

  • Precise and simple singulation with HORSCH AirVac
  • Clear and simple design of the machine
  • Very low horsepower requirement: as of 100 hp
  • Seed wagon with single hopper or pressurised double hopper
  • Combines two seed drills in one:
    • 8-row single grain seed bar
    • Pronto NT seed bar with 4 or 5 m working width
  • Coulter pressures can be adjusted mechanically up to 260 kg per row or fully automatically with AutoForce up to 350 kg per row
  • Weight of the seed wagon is used to generate coulter pressure
  • Underground fertilisation with single disc fertiliser coulter
  • Central micro-granular unit for placement in the furrow or on the row
  • ISOBUS control

TECHNICAL SPECIFICATIONS

 

HORSCH Maestro Maestro 8.70 – 75 – 30” DV
Transport width with 2.45 m track (m) 3.00
Transport width with 2.80 m track (m) 3.35
Transport width with 3.00 m track (m) 3.55
Transport height (m) 3.85
Transport length (m) 7.50
Weight (kg)* 4 500
Hopper capacity seed waggon single hopper version (l) 2 800
Hopper capacity seed waggon double hopper version (l) 3 500
Feed opening seed waggon single hopper version (m) 1.00 x 2.40
Feed opening seed waggon double hopper version (m) 0.60 x 2.00
Capacity seed container (l) 70
Number of rows 8
Coulter pressure mechanical (kg) 150 – 260 (310 with 2x additional springs)
Coulter pressure hydraulic (kg) 150 – 350
Depth control wheel Ø (cm) 40
Press wheel Ø (cm) 30 / 33
Catching roller Standard
Row spacing (cm, inch) 70 / 75 / 30“
Sowing depth (cm) 1.5 – 9
Drop height seed (cm) 45
Tyre size seed waggon 550 / 60 R 22.5
Working speed (km/h) 2 – 12
Horsepower requirement from (kW/hp) 75 / 100
DA control devices 1 DA hydr. functions, 1 DA hydr. fan direct drive fertiliser and underpressure with adjustable flow rate, 1 DA hydr. filling auger single hopper
Depressurized return flow (max. 5 bar) 1 for hydr. fan direct drive fertiliser and underpressure
Oil quantity hydr. fan fertiliser and underpressure (l) 50
Adj. drawbar linkage Bolt Ø 40 mm


* Weights of the machines with minimum equipment


Features

Press wheels

for a better embedding of the grains

Which press wheel is suitable for which use?

  • The finger wheel is ideal for heavy soils.
  • The spike wheel is ideal for lighter sites.
  • The rubber closing wheels are ideal for light sandy sites.
  • If the furrow wall gets compacted because of the double disc seed coulters, it is broken by the finger / spike wheel – the furrow is removed.
  • Seed furrow is not opened after sowing under dry conditions, especially on heavy clayey sites
  • Development of the maize root is encouraged
  • There is one finger / spike wheel and one standard wheel per row to control the depth and to avoid moving the grains.
  • However, the wheels are not suitable for shallow sowing.

Additional Features