KUHN Gyrorakes - Cork Farm Machinery

GA300 M 3201 G 3201 GM 3801 GM 4121 GM 4321 GM 4521 GM 4521 GTHHIGH-QUALITY GYRORAKESFROM THE WORLD’S LEADINGMANUFACTURERGENTLE, HIGH-QUALITY RAKINGNEEDEDKUHN, the pioneer in rotary rakes with guided arms,ensures with features such as the double-curvedhyper-tangential tine arms that all forage is rakedaccording to your satisfaction.HOW TO INCREASE PERFORMANCEWHILE REDUCING MAINTENANCECOSTSThe exclusive MASTERDRIVE gearbox is very robustand will cope with any kind of crop and conditionthanks to its patented design for an increasedservice life.KEEPING OPERATING COSTS LOWSaving time means reducing the production costs.How to achieve that? KUHN offers machines,with which you can work fast without having toaccept restrictions in raking quality or drivingstability on headlands and slopes.KUHN mountedsingle-rotorGyrorakes in brief:Workingwidth (m)Powerrequirement(kW/hp)WindrowdeliveryGA 300 GM 3.20 15/20 leftGA 3201 G 3.20 15/20 leftGA 3201 GM 3.20 15/20 leftGA 3801 GM 3.80 19/25 leftGA 4121 GM 4.10 22/30 rightGA 4321 GM 4.20 22/30 rightGA 4521 GM 4.50 26/35 rightGA 4521 GTH 4.50 26/35 right3

TINES WITH BENEFITSKUHN tines rake the crop especially gently, also if it is heavy anddense.Made of heat treated steel, their service life is optimized and thetine’s resistance to fatigue increased. The “fl oating” attachment of thetines, featuring three large-diameter coils, additionally reduces risk ofwear.Simultaneously the tine height is accurately controlled to preserveboth the stubble and the crop.OPTIMUM WHEEL POSITIONThe wheels are positioned extremely close to the rotor. Therefore, thetines follow ground contours better to avoid impurities in the forage.KUHN PATENTA WINDROWING SYSTEM INTELLIGENTAND ADJUSTABLE FOR EVERYONEThe windrow deflector arm is mounted ona parallelogram frame for models startingfrom GA 3201. For its adjustment you simplyturn a handle or comfortably set it from thetractor cab via a hydraulic cylinder. Whenextended outward the screen automaticallymoves to the rear, when retracted it movesto the front. This is very practical becausein this way it is always correctly placed inrelation to the crop trajectory.5

CROSS-SECTIONMASTERDRIVEGEARBOXNo tilting or tolerancepossible when drivingover uneven groundSAVINGSTHE GEARBOXTO COPE WITH MAXIMUM STRAINSAgricultural machines have to withstand bigger strains today with increasing workingwidths and farmer´s demands for reliable machines with maximum service life.For Gyrorakes this especially accounts for the heart of the machine, the rotor drive.KUHN has developed fully enclosed gearboxes for total protection of the drive partsand less subject to wear. The MASTERDRIVE gearbox especially scores with itsspecial design, thus providing exceptional reliability and durability also during intensiveoperations.6KUHN PATENTThe MASTERDRIVE gearbox reveals an exclusivedesign with its two-stage, reductiondrive using bevel and “bull gear” reduction.Tolerances in the bevel reduction are thustightly controlled for more reliability and anincreased robustness of the whole assemblyin difficult conditions.Therefore, wear on the gearwheels is reducedto a minimum and almost no maintenancerequired. The two stages also makeit possible to include bigger bull gears withmore teeth for better power transmission.Fully enclosedsingle-stagegearboxDouble-stageMASTERDRIVEGA 300 GM -GA 3201 G -GA 3201 GM -GA 3801 GM -GA 4121 GM -GA 4321 GM -GA 4521 GM -GA 4521 GTH -

WORK QUALITYSAVINGSSTABLE UNDER ALL CONDITIONS.QUICK AND HIGH-QUALITY WORK.The nutritional quality of the forage is most important for high feeding performance,but don´t forget to keep your operating costs low. Working quickly without restrictionsregarding work quality is the key to further reduce production costs.KUHN´s GA Gyrorakes feature important details to support you in your effort.MOUNTED FLEXIBILITY WITHTRAILED PERFORMANCEMost of KUHN´s mounted Gyrorakes areavailable with a pivoting headstock (GM)and perform in the same way as a trailedmachine while raking. With 50° thisheadstock offers one of the largest pivotingangles on the market today. In this way,working while turning does not alter theraking quality nor the windrow shape.Additionally, driving with the baler incorners also becomes easier.QUICK AND EFFICIENTIf you would like to optimize your forwardspeed, raking quality, preserve groundcover and protect the machine against thewear and tear of uneven terrain, KUHNhas another important asset to offer. Thebogie axle with four staggered wheelsadapts well to ground contours and caresfor an increased output thanks to stabilizingthe machine.HEADSTOCK SUSPENSION:LIKE A CUSHIONA headstock suspension is standard onGA 4321 GM and 4521 models, andoptionally available on GA 3801 GMand GA 4121 GM. It acts like a cushionduring manoeuvres and improves stabilitywhen working on slopes. When raisingthe rake the dampener smoothly andautomatically centres it behind thetractor. For the GA 4321 GM andGA 4521 GM model a second dampenercan be fi tted for working in very hillyareas.7

GA300 GMPROVEN RELIABILITYFOR SEVERAL DECADESAs KUHN is the inventor of rotary rakes, the GA rakes have always been considered as the “Gyrorakes”.The 3-point mounted GA 300 GM, from today´s point of view a pioneer KUHN Gyrorake, is no exception tothis rule. With this simple rake you can harvest a crop rich in leaves and full of essential nutrients.Cross-sectionGA 3201/3801gearbox:fully enclosedsingle-stage bevelgear8NO MAINTENANCE REQUIREDThe tine arm drive components are housed in a fully enclosed gearcase, and don’t require any special maintenance. For additionalrobustness, the tine arm holders are fi xed on both the upper andlower gear case covers.NO COMPROMISES IN RAKING QUALITYThe nine tine arms of the GA 300 GM follow a cam profi le thatprovides high clearance over the windrow. The pivoting headstockallows an increased manoeuvrability and improved terrain following.All this ensures the formation of even, fast drying windrows that arefree of stones, even around corners.

GA3201 G 3201 GM 3801 GMFULLY EQUIPPED FOR LOW ANDMEDIUM HORSEPOWER TRACTORSThe GA 3201 and GA 3801 GM are the right machines for farms with less hectares and low or mediumhorsepower tractors. Equipped with nine and ten tine arms respectively, these rakes work 3.20 m (10’6’)’and 3.80 m (12’6”) wide.STRONG POINTS- high number of tine arms and tines per arm for evenbetter raking- hypertangential design of tine arms on GA 3801 GM:very competitive compared to machines with anadditional tine are or more tines per arm- fully enclosed greased gearbox- parallelogram-mounted windrow deflector: moves systematicallyinto the best position, windrow width adjustablewithout tools- easily detachable tine arms for reduced transport width- guards and windrow curtain easily folded up for transportand storage thanks to a springGA 3201 G: IDEAL FOR STEEP SLOPESWith a fi xed attachment to the tractor the rake will faithfully followthe tractor on the steepest slopes. It is fi tted with pivoting wheels.The machine height is adjusted by a lever located on the wheel.9

GA4121 GM 4321 GMWHEN RAKING OPERATIONSGET MORE DEMANDINGWhen conditions get more diffi cult and working widths are increasing, you as farmers demand morerobust machines. KUHN answers with the exclusive MASTERDRIVE gearbox for larger models, as theGA 4121 GM with 4.10 m (13’5”) and the GA 4321 GM with 4.20 m (13’9”) working width.FOR AN IMPROVED PERFORMANCEThese rakes feature three important advantages for improving, economizing and accelerating your forageharvest: large working widths - fast working speeds - high manoeuvrability thanks to the pivoting headstock.10

COMFORTTHE EASE OF FOLDINGThanks to a spring the left guard and windrow defl ector can be easilyraised and lowered.MASTERDRIVEFully enclosed gearbox – two-stage reduction drive – increasedrobustness, reliability and service life – better power transmissionHOW TO ACHIEVE IMPECCABLE RAKINGThe greater number of tine arms allows working at higher groundspeeds while maintaining a slower rotor speed. This ensures that thecrop is raked both cleanly and gently. The double-curved design ofthe tine arms increases capacity and enables optimum raking of thecrop. This results in well formed, airy windrows that decreasedrying time and improve the feeding capacity of the following baler.WINDROW DEPOSITTO THE RIGHTFrom a practical point of view depositingthe windrow to the right is a must.Don´t underestimate the additional comfortof being able to monitor the raking quality and to doall necessary adjustments at the same time, as youfind both the windrow and the operating panels onyour right side.11

GA4521 GM 4521 GTHOPTIMUMOUTPUTIf you search a single rotor machine, but will only be satisfi ed by the highest standards, then you shouldhave a closer look at our GA 4521 models.PERFOMANCE AND WORK QUALITY COMBINEDWith a working width of 4.50 m (14’9’’), 13 tine arms and bogie axles as standard, the GA 4521 GM (3-pointmounted) and the GA 4521 GTH (trailed) are amongst the most performing single rotor rakes on the market.12Strong points:• new reinforced headstock with pivoting angle of 25° to left or right,• no soiling of the crop,• MASTERDRIVE gearbox for maximum service life of the drive components,• tangential tine arms providing optimum raking quality,• raking to the right for greater comfort of use.

60 cmGACOMFORT4521 GTHEXCEPTIONALLIFT HEIGHTThe trailed GA 4521 version is a great singlerotor machine for low-power tractors.The parallelogram-type drawbar and the designof the under-carriage allow a horizontal lifting fortransport or when crossing windrows. You willappreciate the 60 cm high clearance at work andthe good stability while driving on roads!ONLY 2.20 M OFTRANSPORT WIDTH!Store the tine arms in a rack at the front of themachine, fold up the guards vertically and startyour trip home in total safety (lighting and signalingelements as standard).2COMFORTENJOY AN EXTENDED USER COMFORTAs option, you can hydraulically control the folding of the guards (1)as well as the windrow width adjustment (2) from the seat of yourtractor.This is also an option on the GA 4121 and 4321.1WORK QUALITYTHE SECRET OF PERFECT GROUND CONTOURFOLLOWINGEquipped with bogie axles, the GA 4521 GM/GTH are “crosscountry”machines: They smooth out bumps and holes, thus thedistance between ground and tine remains constant. The closepositioning of the wheels to the tines adds to impeccable rakingoperations. Take advantage from high forage quality and no croploss, while being able to work with increased speed withouthaving to cut back on the machine´s stability.13

MORE OPTIONSAND FEATURES OF KUHN MOUNTED GYRORAKESREDUCED TRANSPORT WIDTHMost models of KUHN Gyrorakes have removable tine armsthat are stored on a rack at the front of the rake.Benefi ts: minimized transport width, reduced weight transfer onthe tractor for more stability during transport, less storage spacerequired.ADDITIONAL SUPPORT FOR GROUND ADAPTATIONAll Gyrorakes can be fi tted with an additional support wheel atthe front of the rotor. Benefi t: improved raking performance andground contour following.EVEN MORE STABILITYFor the GA 4321 and GA 4521 GM model a second dampercan be fi tted as option. With its help the Gyrorakes will runeven more smoothly over bumpy ground and in hilly areas.14

Technical specificationsGyrorakesGA300 GMGA3201 GGA3201 GMGA3801 GMGA4121 GMGA4321 GMGA4521 GMGA4521 GTHWorking width inc. single windrow (m/ft) 3.20/10’5’’ 3.80/12’6’’ 4.10/13’5’’ 4.20/131’9’’ 4.50/14’9’’from 1.00/Average windrow width depending on crop approx. from 0.80/2´7´´1.30/4´3´´3´3´´ toapprox. 1.40/4’7’’ (to the right)density (m/ft)0.80/2´8´´ to 1.00/3´3´´(to the right)1.30/4´3´´Attachment/category 3 point/cat. 1 and 2 3 point/cat. 2 trailedFixed headstock and pivoting wheels (heightadjustable by set screw - -Pivoting headstock and pivoting wheels(height adjustable by selector lever) - -Tyres Balloon 15 x 6.00-6 Superballoon 16 x 6.50-8Undercarriage height adjustment -Hyperballoon18x8.50-8by hydrauliccylinderFully enclosed gearboxRotor diameter (m/ft) 2.64/8’8’’ 2.98/9´9´´ 3.20/10’5’’ 3.40/11’2’’ 3.65/12’Double reduction MASTERDRIVE gearbox -Number of tangential tine arms 9 10 12 13Number of tines per arm 3 4Removable tine arms -Transport width (m/ft) 2.75/9’1’’ 1.75/5’9’’ 1.95/6’4’’ 2.20/7’2’’Weight with PTO (kg/lbs) 286/630 347/765 372/820 474/1,045 540/1,188 702/1,547 815/1,793 925/2,039Primary PTO shaftwith torque limiterMin. PTO power requirement (kW/hp) 15/20 19/25 22/30 26/35Optional equipmentGA300 GMGA3201 GGA3201 GMGA3801 GMGA4121 GMGA4321 GMGA4521 GMGA4521 GTHAdditional support wheelBogie axle -Lighting and signallingPivoting headstock dampenerSupplementary headstock shock absorber----Hydraulic control of guard folding andwindrow curtain adjustment -Wide-angle drive shaft (recommended fortractors with low lying PTO) - -Standard Option - Not availableKUHN SERVICES *MAXIMIZE THE USE AND PRODUCTIVITYOF YOUR KUHN EQUIPMENT*Certain services and equipment are available in all countriesExpress spare parts service 24/7You urgently need spare parts? With KUHN sos order benefi t fromexpress delivery seven days a week, 365 days a year. Thus, youcan minimize machine downtime considerably and increase yourwork output.For ever quicker repairs!An unexpected technical problem always occurs at the wrongtime. Your KUHN dealer can support you quickly and effi cientlythanks to KUHN i tech. With this 24/7 online service, a quickand exact diagnosis is possible.The choice of professionals!Benefi t from 36 months in complete serenity because of KUHN´sprotect+ warranty. You can concentrate exclusively on your workand the performance of your machine. Because this is what youexpect, when investing in high-tech machinery.Invest rationally!New machine necessary, fi nancing unsure? Modernize yourequipment and develop your farm with KUHN fi nance,in total safety and according to your needs and demands.We offer custom-made fi nance solutions, adapted to yourrequirements.15 11

GASINGLE ROTORCHOOSE THE RIGHT RAKE!SINGLE ROTOR GYRORAKESSuitable for steep slopesManagement of heavy and wet forageEase of work monitoringEase of windrow width adjustment+++ optimum ++ very good + good o suitableGA300 GMGA3201GGA3201GMGA3801GMGA4121GMGA4321GMGA4521GMGA4521GTH+ +++ + +++ +++ +++ +++ ++++ ++ ++ ++ +++ +++ +++ +++++ ++ ++ ++ +++ +++ +++ ++++ ++ ++ ++ +++ +++ +++ +++Check out the other rakes KUHN has on offer1. Semi-mounted twin Gyrorakeswith side delivery14For more information about your nearestKUHN dealer, visit our websitewww.kuhn.com25Visit uson our YouTube-channel KUHN machines.Your KUHN dealer362. Semi-mounted twin Gyrorakeswith central delivery3. Trailed twin Gyrorakes4. Four-rotor Gyrorakes5. Belt mergers6. Tedder-rake combinationsKUHN S.A.4 Impasse des Fabriques - BP 50060 - F-67706 SaverneCEDEX-FranceKUHN NORTH AMERICA, INC.1501 West Seventh Avenue – P.O BOX 167 - Brodhead, WI53520 - USAKUHN FARM MACHINERY PTY. LTD313-325 Foleys road - Deer Park, 3023 Victoria AUSTRALIAKUHN FARM MACHINERY (U.K.) LTDStafford Park 7 - GB TELFORD/ SHROPS TF3 3BQSome machines have a considerable weight. Respect the tractor gross vehicle weight rating, its lift capacity andmaximum load per axle. The tractor front axle load must always reach minimum 20 % of the tractor net weight.Our material is produced in accordance with the European Machinery Directive in the member states of theEuropean Union. In countries outside the E.U., our machinery complies with the safety regulations set by the countryconcerned. Some safety devices may have been removed from our leafl ets in order to clarify the illustration. Underno circumstances should the machine be operated without the necessary safety devices in place (as specifi ed bythe assembly instructions and operators manual). We reserve the right to change any designs, specifi cations ormaterials listed without further notice. Machines and equipment in this document can be covered by at least onepatent and/or registered design. Trademarks cited in this document may be registered in one or several countries.To protect the environment, this leafl et is printed on chlorine-free paper. / Printed in France - 920 245 GB - 08.14 - Copyright 2014 KUHN - R 18.08.14www.kuhn.comAlso find KUHN on