Prima, the reversible mounted plough by Grégoire Besson

Our plough, simple and robust, is adaptable to the tractor with low lifting capacity. In furrow or on land, its setting up and its maintenance are fast and the choice of the mouldboard (from 2 to 5 bodies) makes it possible to adapt to the ground of the whole world to better work it. A roll can be added.


Reversible Mounted Ploughs Configure your Prima

"The most straightforward
and long-lasting ploughs on the market."
A range of reversible mounted
ploughs from 2 to 7 furrows.
Prima 50
Working width:
85 → 125 hp
62,54 → 91,97 kW
0,60 → 2,50 m.
1,97 → 8,20 ft
Reversible mounted plough from 2 to 5 furrows
Prima 70 avant
Working width:
125 → 310 hp
91,97 → 228,08 kW
0,60 → 2,00 m.
1,97 → 6,56 ft
Front reversible mounted plough from 2 to 4 furrows
Prima 70
Working width:
125 → 310 hp
91,97 → 228,08 kW
0,90 → 3,00 m.
2,95 → 9,84 ft
Reversible mounted plough from 4 to 7 furrows
Prima 80
Working width:
310 → 400 hp
228,08 → 294,30 kW
1,70 → 2,15 m.
5,58 → 7,05 ft
Reversible mounted plough from 4 to 5 furrows
Simplicity in all aspects

Simplicity is important, especially when you face other challenges every day.

Clean hitching
On all models, you have a simple headstock with cross beams where you adjust the plumb mechanically by a screw. You can also manually lock the plough for transport mode.
Reversible mounted ploughs hitch sleek plowing
Robust beams
All Prima beams are reinforced (except Prima 40). This gives them greater resistance to twisting, bending and impacts.
Reversible mounted ploughs robust box plowing
Multi-position Adjustment
To adjust the working width, a pin-and-hole system allows you to change the angle of each element. You can then work from 12 to 22’’ depending on the inter-body spacing and Prima model.
Reversible mounted ploughs Multi-Position Settings agricultural machinery
Prima 70 Suspension
As an option on this model, you can choose a suspended headstock in order to minimise the load of your tractor’s lift. You gain in comfort and your equipment lasts longer.
Reversible mounted ploughs suspension agricultural machinery
Simple adjustments
You adjust the vertical plumb with a stop screw. You set the tilt using a mechanical tie rod. You control the depth by the wheel and the coupling.
Your plough is set.
Reversible mounted ploughs Simple adjustments agricultural machinery
Hydraulic realignment
When in-furrow models with more than 4 bodies are turned, a hydraulic cylinder realigns the plough so that it does not touch the ground.
Reversible mounted ploughs Hydraulic realignment agricultural machinery
Prima 40, 50 & 70 in-furrow offset
You can adjust your offset by means of a multi-position system. This means you can have very short and strong mounted ploughs. It transfers as much load as possible to the tractor. Grip is improved and you use less fuel.
Basic mounted ploughs 40, 50 & 70 in-furrow offset agricultural machinery
Prima 70 on-land & 80 on-land offset
The offset management on these two models allows you to work on-land with tractor tracks up to 3.5 m wide.
Reversible mounted ploughs on-land & on-land offset agricultural machinery
Adding or removing a body
Do you plan to change your tractor one day? For one with higher power? Or lower? Remember, you can easily add or remove a ploughing body. Don’t forget to specify this when configuring your mounted plough. This means that you do not have to change ploughs if you change tractors.
Reversibles mounted ploughs Adding or removing a body agricultural machinery
Available in front plough
The Prima 70 plough is also available as a push plough for hitching onto the front linkage of the tractor. It brings a load transfer on the front and improves the grip of your tractor.
Reversibles mounted ploughs Adding or removing a body agricultural machinery
Ploughing in-furrow or ploughing on-land?

This is less a personal choice and more a question of the conditions of your environment. Let’s look at what’s involved.

If your tractor has with single wheels, and you plough at less than 35 cm, in-furrow ploughs are made for you.

By placing the tractor wheels in the furrow, ploughing is easier. The wheels can get a good grip on the bottom of the furrow. Traction is then at its best, especially in wet conditions. Slippage is limited and you save fuel.

If you do not have GPS, the furrow serves as a guide.
Reversible mounted ploughs in-furrow agricultural machinery
On the other hand, on-land ploughs are more suitable if your tractor is equipped with tracks, twin wheels or wheels over 710 mm wide.

By ploughing on-land, you will reduce tyre wear, especially if you have flinty soil.

Sometimes, our customers choose an on-land plough even though their tractor is equipped with single wheels because they prefer to use their GPS guidance system.
Reversible mounted ploughs On-land agricultural agriculture
Shear bolt or hydraulic safety system?

Why choose one or the other?
You’ll see, it’s very simple.

Depth wheels
for all needs
RJL Wheel
Lateral depth wheels
Mechanical adjustments
Tyres available:
- 600 x 9
- 200/60 x 14.5
- 10.0/75 x 12
Basic mounted ploughs RJL Wheel soil preparation
RT 10 Wheel
Reinforced lateral depth wheel
Mechanical adjustment
Tyres available:
- 13.0/55 x 16
- 11.5/80 x 15.3
Basic mounted ploughs RT 10 Wheel soil preparation
RTT 10 Wheel
Lateral depth wheel & transport
Mechanical adjustment
Tyres available:
- 13.0/55 x 16
- 11.5/80 x 15.3
Basic mounted ploughs RTT 10 wheel  soil preparation
RTRH Wheel
Reinforced lateral depth wheel
Hydraulic adjustment and realignment
Tyres available:
- 11.5 / 80 - 15.3
- 13 / 55 - 16
Basic mounted ploughs RTRH Wheel soil preparation
RCRH Wheel
Lateral depth wheel and transport
Hydraulic adjustment and realignment
Tyres available:
- 11.5 / 80 - 15.3
- 13 / 55 - 16
Basic mounted ploughs RCRH Wheel soil preparation
RTHD Wheel
Reinforced rear depth wheel
Mechanical adjustment
Tyres available:
- 11.5 x 80 - 15.3
Basic mounted ploughs RTHD Wheel soil preparation
Which ploughing body should I choose?

Your soil hardness will mainly determine whether you should take a body with bolt-on points or a body with bar points. We recommend bodies with bar points for soils that tend to become compacted or for grasslands.

A look around your machines...
Our customers tell us
Basic mounted ploughs working soil testimony farmer
Nicolas, France
Prima 50« Gregoire Besson because it’s a family story. I always knew a plow of this brand with my father on the farm. It was bought to work on 125 ha then the years go by and we ask it to plough 260 ha. It is well adapted to the evolution of our exploitation. We do not plow the whole surface but with rotations for demanding crops. It is a very simple machine to use and adjust. Correct maintenance cost. »
Basic mounted ploughs working soil testimony farmer
Thierry, France
Prima 50« It’s simple, robust and works well... It is very simple. Easy to maintain, easy to hitch up and then easy to adjust. »
Dongxia, China
Prima 70« On our state farm in Heilongjiang, we have nine Prima 70 in-furrow and on-land which were specially developed for our region. We plough after maize and cotton harvests. We chose Grégoire Besson for service and quality. »
  1. 1.Simple and robust
  2. 2.30,000 models in use worldwide
  3. 3.Compatible with tractors that have low lifting capacity
  4. 4.Ploughing bodies that adapt to soils worldwide
  5. 5.Choice of 2 proven safety systems
  1. 6.Available as in-furrow or on-land versions
  2. 7.Rapid start-up and maintenance
  3. 8.Wide choice of wheels
  4. 9.Possibility to fit a roller arm
  5. 10.Peace of mind so you can focus on your profession
Configure your Prima
Choose your Prima reversible mounted plough,
configure it and get an idea of price.
    * Prices excluding taxes, delivery charges, entry into service and customs duties. Estimated price, non negotiated public price, ex works. Amounts, options, currencies and exchange rates may vary from country to country and at any time.** Homologation-cancelling option in France
    +1 450-253-5615

    GB Group Canada

    5900B, Rue Barré

    J2R 1E4 St Hyacinthe


    Lat., Long.: 45.65137, -72.97651

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