PreTeC mulch seeding unit

The PreTeC mulch sowing coulter – The precision coulter for any soil type

Individual components of an implement may be excellent in themselves and do their job reliably. However, only when the components interact perfectly can the result be convincing and deliver maximum precision and impact. Like the Precea with PreTeC mulch sowing coulter.



1.    FerTeC twin fertiliser coulter with leaf spring overload protection
2.    Carrying rollers
3.    Double disc seed coulter with slot and carrying roller
4.    Catcher roller
5.    V-Press rollers

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Maximum flexibility with the highest work rates

No matter whether it is used for conventional sowing or when mulch sowing, the PreTeC sowing unit is perfect for precision seeding. Benefit from the first-class, consistent seed placement accuracy and use it to increase yield. The Precea makes high outputs possible due to its high degree of accuracy, in particular at high forward working speeds up to 15 km/h.


The benefits:

  • High operational comfort
  • Minimisation of any downtime
  • Time saving during regular maintenance

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Even field emergence

The mulch sowing unit (weighing 120 kg) can be pressurised down further by a spring with a maximum force equivalent to 170 kg. The total coulter pressure can therefore be up to 290 kg. Via a hydraulic cylinder, a coulter pressure of up to 350 kg is possible. This ensures smooth running and an even field emergence even under the hardest of conditions. The complete PreTec sowing unit is guided reliably by 2 large carrying rollers. The soil is opened by the double disc unit and then followed by a furrow former. Once the seed has been embedded in the soil by the catcher roller, the V-Press rollers follow to close up the furrow again.

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No lubrication points necessary

The PreTeC mulch sowing unit works tirelessly, hectare after hectare, with excellent results. Unlike the sowing units from many other manufacturers, there are no lubrication points. No more greasing!

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Different V-Press rollers

The narrow press roller, having a width of 25 mm, is ideal for medium to heavy ground, while the press roller with a width of 50 mm works better on lighter soils. The toothed 50 mm press roller is recommended for its particularly good reconsolidation and crumbling. 

  • The right roller for every soil type
  • Simple and tool-free adjustment


1. 25 mm smooth
2. 50 mm smooth
3. 50 mm serrated
4. 50 mm profiled

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Furrow closers

The optional furrow closers close the seed furrow, in particular under difficult conditions, and thus ensures optimal field emergence.

  • Optimisation of the field emergence through reliable closure of the seed furrow
  • Simple and tool-free height adjustment and deactivation
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Clod clearer – the ideal option against clods and stones

The optional clod clearer is the ideal tool for heavy soils and cloddy conditions. The use of a clod clearer makes the coulter run significantly more smoothly.

  • Smooth coulter running in a clean seed furrow ensures an even field emergence 
  • Universal adjustment of the clod clearer possible


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Star clearer – the perfect option for excessive harvest residues

Using the optional star clearer ensures that the seed furrow is always optimally cleared, even when larger amounts of organic material are present. The trash-free seed rows ensure that the seeding unit works well, suppresses weed regrowth and ensures optimal field emergence.

  • Optimisation of the field emergence by an optimally cleared seed furrow


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Mechanical coulter pressure adjustment

The mechanical coulter pressure adjustment can be used to adjust the coulter pressure very easily and effectively via a tension spring with a series of notches. In addition to its own weight of 120 kg, an additional coulter pressure of up to 170 kg can be generated. Another increase of 15 kg is possible in the wheel tracks.

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Hydraulic coulter pressure adjustment

The coulter pressure can be adjusted even more easily and comfortably via the hydraulic coulter pressure adjustment. The coulter pressure can be adjusted up to a pressure of 350 kg, even when on the move, via the operator terminal. The SmartForce automatic coulter pressure regulation also ensures that all sowing units are automatically adjusted, even in varying soil conditions.

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Maximum operational comfort

The good accessibility to the seeding unit ensures high operating comfort. A multitude of adjustment options allows the adaptation to any requirement.


The benefits:

  • Increased yields and an increase in the sowing quality as a result of the effective singling
  • More adjustment comfort due to tool-free operation
  • Higher flexibility due to the extensive range of optional equipment for the all-rounder coulter
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Different soil conditions - a uniform outcome with SmartForce

Simultaneous maintenance of a consistent placement depth and optimum embedment of the seeds ensures high field emergence and provides the basis for good a yield.

Maintaining a consistent placement depth on varying soils or conditions where there is uneven reconsolidation represents a particular challenge for both the machine and the operator.

AMAZONE offers the SmartForce automatic coulter pressure regulation system as an add-on to the hydraulic coulter pressure adjustment.

The particular feature with this system is that the driver does not need to stipulate the coulter pressure, but rather they set the desired contact force on the terminal. This contact force is checked by measuring pins when in the field. If a deviation from the predefined contact force on the PreTeC mulch sowing unit is registered due to changing ground conditions, the SmartForce hydraulic system readjusts the coulter pressure accordingly. The correct contact force is precisely applied.

In this way, the coulter pressure is adapted to the differing ground conditions whilst on the move - uniform placement depths are thus reliably maintained under all ground conditions. This makes it easier for the driver and results in a more even field emergence.


The benefits:

  • Uniform placement depth - regardless of any changes in soil conditions across the field
  • Uniform plant population enables maximum yield potential by optimising the supply of light, water, carbon dioxide and nutrients to the individual plant

Hydraulic coulter pressure without automatic system gives inconsistent placement depth

1. 30 bar

Hydraulic coulter pressure with automatic control for consistent placement depth

1. 30 bar
3. 50 bar









The measuring pin registers changes in the contact force on varying soils. The ISOBUS-controlled SmartForce system then automatically evens out these fluctuations. As a result, the placement depth remains the same under all soil conditions.

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