Coulters | Harrows

Seed embedment with the RoTeC Control disc coulter for conventional and mulch sowing

RoTeC Control coulters are maintenance-free and work extremely well yet with little wear and tear. Even where large amounts of straw and trash prevail they won’t block up. The combination of the sowing disc on the one side and the furrow former on the other create the perfect seed furrow and optimum seed control. The elastic polyurethane disc also helps to create the seed furrow, accurately controls the pre-set sowing depth and prevents soil from sticking to the sowing discs.


  1. Sowing disc
  2. Control 25 depth guidance roller
  3. Furrow former
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RoTeC: Proven more than 300,000 times over!

The very even and exactly controlled depth guidance of the RoTeC Control coulter is achieved via the Control 10 depth guidance disc, with a contact surface of 10 mm, or the Control 25 depth guidance option with a contact surface of 25 mm. As this depth guidance is fitted on the side of the coulter, this principle operates with more accuracy than coulter systems with a following, rigidly attached separate depth guidance roller. The depth guidance discs or rollers enable the basic setting of the sowing depth to be carried out quickly, easily and comfortably using the coulter pressure. If necessary, a notched quadrant allows for the readjustment of the sowing coulter in 3 steps.

RoTeC Control coulters operate at a coulter pressure of up to 35 kg. In this case the actual effective coulter pressure is comparatively higher with AMAZONE, because the pressure is not distributed between the coulter and the following press roller, but acts solely on the coulter. The hydraulic coulter pressure adjustment is standard in the D9 6000-TC. When sowing rape, or early sowing in dry conditions, working with less coulter pressure is possible without any problem.

Depending on the machine model, a row spacing of 12.5 cm or 16.6 cm is available (see technical data).


  1. Roller pressure
  2. Harrow pressure
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Quality and reliability throughout:

  • Sowing disc of high-strength boron steel
  • Shallow angle of inclination for reduced soil movement
  • Wear resistant polyurethane disc acts as an adjustable depth guidance disc and for cleaning

The large clearance between the front and rear rows of coulters ensures a blockage-free sowing operation, even where large amounts of straw prevail.

With only one cutting disc per coulter, AMAZONE ensures a blockage-free material passage between the coulters, even at a 12.5 cm row spacing at high speed.
 

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RoTeC+ Control for the toughest applications

AMAZONE has developed the RoTeC+ Control coulter for sowing in especially large fields and for the toughest operating conditions. The disc was enlarged to a diameter of 400 mm and is made of 4 mm thick hardened Boron steel. In this way, the wear is kept to a minimum and an already long service life is further extended.

For trouble-free sowing at high forward speeds and in heavy soils where there is much straw, the coulter pressure has been increased to a maximum of 55 kg.

The row spacing is 12.5 cm or 16.6 cm.


  1. RoTeC+ Control (∅ 400 mm), seen here with a Control 25 depth guidance roller
  2. 55 kg coulter pressure
  3. 35 kg coulter pressure
  4. RoTeC Control (∅ 320 mm), seen here with a Control 10 depth guidance disc
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Seed coverage with the Exact harrow

The Exact harrow covers and levels the open seed furrow without blockage even with large amounts of straw present. With its individually pivoting harrow elements, the Exact harrow follows the undulations of the soil perfectly, ensuring an even seed coverage on soils either with or without straw.

The depth guidance is centrally adjusted mechanically via two spindles. A minimum and maximum value is predefined for the hydraulic harrow pressure adjustment (optional) by inserting pins. This enables both the harrow pressure and the coulter pressure to be adapted to changing soil conditions during operation by means of just one tractor control valve.

The 15 mm thick Exact S following harrow is used in conjunction with the RoTeC+ Control coulter. It is low-wearing and provides good seed coverage, even in most difficult of operational conditions.

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Additional consolidation with the roller bar

The press roller additionally consolidates the soil above the seed furrow resulting in optimum germination conditions. This is especially recommended for light, dry soils when sowing spring crops or rape. An undulating surface profile that reduces erosion is the result. The particular advantage is that the roller pressure can be set completely independently of the coulter pressure.

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