GB Group English Machines Services Media - Marketing Contact PRIMA Reversible Mounted Ploughs Configure your Prima ’The most straightforward and long-lasting ploughs on the market.’ Watch the second video Walkaround A range of reversible mounted ploughs from 2 to 7 furrows. + Prima 50 Tractors: 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 Tractors: 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 Tractors: 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 Tractors: 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. Robust beams All Prima beams are reinforced (except Prima 40). This gives them greater resistance to twisting, bending and impacts. 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. 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. 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. 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. 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. 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. 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. 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. 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. In-furrow 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. On-land 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. Shear bolt or hydraulic safety system? Why choose one or the other? You’ll see, it’s very simple. Shear bolt Continuous Hydraulics For stone-free soils, choose shear bolt safety. When the ploughing element hits an obstacle (stone, root...), the shear bolt breaks. The entire element rotates and allows the foreign body to pass under the plough. The shearing noise alerts you, so you stop the tractor, get off and extract the bolt that gave way. All you have to do is replace the shear bolt. That’s it, you’re ready to plough again. For light and sandy soils without any stones, we recommend light soil shear bolts. The way it works is the same. On the other hand, there are 2 bolts for each ploughing element, one per body. Shear bolt safety extends the life of your equipment: the beam is better protected against buckling and it reduces the forces exerted on your tractor. Safety shear bolts resist forces between 4.2 and 6 tonnes at the tip of the body, depending on the model. 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 RT 10 Wheel Reinforced lateral depth wheel Mechanical adjustment Tyres available: - 13.0/55 x 16 - 11.5/80 x 15.3 RTT 10 Wheel Lateral depth wheel & transport Mechanical adjustment Tyres available: - 13.0/55 x 16 - 11.5/80 x 15.3 RTRH Wheel Reinforced lateral depth wheel Hydraulic adjustment and realignment Tyres available: - 11.5 / 80 - 15.3 - 13 / 55 - 16 RCRH Wheel Lateral depth wheel and transport Hydraulic adjustment and realignment Tyres available: - 11.5 / 80 - 15.3 - 13 / 55 - 16 RTHD Wheel Reinforced rear depth wheel Mechanical adjustment Tyres available: - 11.5 x 80 - 15.3 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. Body with bolt-on points Body with bar points Mouldboards for bodies with bolt-on points Helico-cylindrical AR5H Mouldboard for molded ploughing from 18 to 27 cm deep in all types of soil. Suitable for cutting widths from 14 to 18’’ (35 to 45 cm). Long Helicoidal AR8HLM Mouldboard for moulded ploughing from 22 to 32 cm deep in clayey and silty soils. Suitable for cutting widths from 16 to 22’’ (40 to 55 cm). Short Helicoidal AR4H Mouldboard for moulded ploughing from 18 to 25 cm deep in all types of soil. Suitable for cutting widths from 12 to 16’’ (30 to 40 cm). Helicoidal E7 This mouldboard is designed for moulded and very deep ploughing from 28 to 38 cm deep for all types of soil. Suitable for cutting widths from 14 to 18’’ (35 to 45 cm). Long Helicoidal H6 Mouldboard for moulded ploughing 15 to 20 cm deep in clayey soils. Suitable for cutting widths from 16 to 20’’ (40 to 50 cm). Long Helicoidal H8 Mouldboard for moulded ploughing from 18 to 30 cm deep in clayey soils. Suitable for cutting widths from 18 to 22’’ (45 to 55 cm). Long Plastic Helicoidal H8 Mouldboard for moulded ploughing in stone-free and very sticky clayey soils. Cylindrical C16S Mouldboard for crumbled ploughing from 20 to 30 cm deep in sandy, silty and clayey soils. Suitable for cutting widths from 14 to 20’’ (35 to 50 cm). Cylindrical C14S Mouldboard for crumbled ploughing from 20 to 30 cm deep in sandy, silty and clayey soils. Suitable for cutting widths from 12 to 16’’ (30 to 40 cm). Helico-cylindrical M1 Mouldboard for ploughing 15 to 22 cm deep in chalky and sticky soils. Suitable for 12 to 16’’ (30 to 40 cm) cutting widths. Slatted CV7 10 Helicoidal mouldboard for ploughing 20 to 30 cm deep in heavy soils. Suitable for cutting widths from 35 to 55 cm. The blades can be replaced individually to save money. Slatted CV9 12 Helicoidal mouldboard for ploughing 22 to 35 cm deep in heavy soils. Suitable for cutting widths from 35 to 55 cm. The blades can be replaced individually to save money. Skimmers, trash boards, disc coulters, etc. Mixed Skimmer The short coulter and mouldboard make this combination very versatile. It is suitable for 80% of applications. Plastic Mixed Skimmer The plastic mouldboard enables the surface to be scalped, even with very sticky soils. Universal Skimmer Its wider coulter and longer mouldboard enable this combination to handle larger volumes of plants than the mixed skimmer. Maize Skimmer The high mouldboard guarantees a smooth passage through tall plants such as corn, sunflower, etc. Pasture Skimmer The very long mouldboard enables it to turn over very dense root systems such as those found in grasslands. Trashboard Used mainly in winter ploughing, it positions the residues of large plants vertically to improve water infiltration. Spring-mounted Disc Coulter Suitable for stony soils. It cuts plants and soil 10 cm in front of the body. It creates a clean furrow base and wall that provides better grip to the tractor. Bolted Disc Coulter Suitable for lightly stony soils. It cuts plants and soil 10 cm in front of the body. It creates a clean furrow base and wall that provides better grip to the tractor. Knife coulter It cuts a strip of earth to stop the furrow wall attaching to the mouldboard and helps prevent it from crumbling. Mouldboard extension The mouldboard extension positions the earth for precise finishing. It limits wear at the end of the mouldboard. Spike Sub-soiler It loosens the soil to a depth of 15 cm under the plough body. It promotes water infiltration, gas exchange and root exploration. Furrow opener The furrow opener enlarges the furrow base so that track markers equipped with wide tyres have better grip. A look around your machines... Our customers tell us 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. » 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. » View video 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. » Recap 1.Simple and robust 2.30,000 models in use worldwide 3.Compatible with tractors that have low lifting capacity 4.Ploughing bodies that adapt to soils worldwide 5.Choice of 2 proven safety systems 6.Available as in-furrow or on-land versions 7.Rapid start-up and maintenance 8.Wide choice of wheels 9.Possibility to fit a roller arm 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. Tractor power Recommended tractor power (can be adapted according to your location) Tractors from 50 to 85 ch Tractors from 85 to 125 ch Tractors from 125 to 210 ch Tractors from 210 to 310 ch Tractors from 310 to 400 ch Next question Receive your finished configuration Email* Send Print Contact us Tractor power : Tractors from 50 to 85 ch * 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 Download our configuration Application Contact Select your country Afghanistan Åland Islands Albania Algeria American Samoa Andorra Angola Anguilla Antigua & Barbuda Argentina Armenia Aruba Australia Austria Azerbaijan Bahamas Bahrain Bangladesh Barbados Belarus Belgium Belize Benin Bermuda Bhutan Bolivia Bonaire, Sint Eustatius & Saba Bosnia & Herzegovina Botswana Bouvet Island Brazil British Indian Ocean Territory Brunei Darussalam Bulgaria Burkina Faso Burundi Cambodia Cameroon Canada Cape Verde Cayman Islands Central African Republic Chad Chile China Christmas Island Cocos Islands Colombia Comoros Congo Congo, Democratic Republic Cook Islands Costa Rica Côte d’Ivoire Croatia Cuba Curaçao Cyprus Czech Republic Denmark Djibouti Dominica Dominican Republic Ecuador Egypt El Salvador Equatorial Guinea Eritrea Estonia Ethiopia Falkland Islands Faroe Islands Fiji Finland France French Guiana French Polynesia Gabon Gambia Georgia Germany Ghana Gibraltar Greece Greenland Grenada Guadeloupe Guam Guatemala Guernsey Guinea Guinea-Bissau Guyana Haiti Honduras Hong Kong Hungary Iceland India Indonesia Iran Iraq Ireland Isle of Man Israel Italy Jamaica Japan Jersey Jordan Kazakhstan Kenya Kiribati Korea, North Korea, South Kuwait Kyrgyzstan Laos Latvia Lebanon Lesotho Liberia Libya Liechtenstein Lithuania Luxembourg Macao Macedonia Madagascar Malawi Malaysia Maldives Mali Malta Marshall Islands Martinique Mauritania Mauritius Mayotte Mexico Micronesia Moldova Monaco Mongolia Montenegro Montserrat Morocco Mozambique Myanmar Namibia Nauru Nepal Netherlands New Caledonia New Zealand Nicaragua Niger Nigeria Niue Norfolk Island Northern Mariana Islands Norway Oman Pakistan Palau Palestine Panama Papua New Guinea Paraguay Peru Philippines Pitcairn Poland Portugal Puerto Rico Qatar Réunion Romania Russia Rwanda Saint Barthélemy Saint Helena, Ascension & Tristan da Cunha Saint Kitts & Nevis Saint Lucia Saint Martin Saint Pierre & Miquelon Saint Vincent & the Grenadines Samoa San Marino Sao Tome & Principe Saudi Arabia Senegal Serbia Seychelles Sierra Leone Singapore Sint Maarten Slovakia Slovenia Solomon Islands Somalia South Africa South Georgia & the South Sandwich Islands South Sudan Spain Sri Lanka Sudan Suriname Svalbard & Jan Mayen Swaziland Sweden Switzerland Syrian Arab Republic Taiwan Tajikistan Tanzania Thailand Timor-Leste Togo Tokelau Tonga Trinidad & Tobago Tunisia Turkey Turkmenistan Turks & Caicos Islands Tuvalu Uganda Ukraine United Arab Emirates United Kingdom United States Uruguay Uzbekistan Vanuatu Venezuela Vietnam Virgin Islands, British Virgin Islands, U.S. Wallis and Futuna Western Sahara Yemen Zambia Zimbabwe +33 (0)2 41 64 72 67 GB Group France 2 rue Victor Grégoire 49230 Montigné-Montfaucon France Lat., Long.: 47.0843685, -1.1370094 Let’s talk... 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