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Kuhn GA 4221 GTH
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GA 4121 GM / 4220 TH / 4221 GTH / 4321 GM GA 4221 GTH
Overview:
The KUHN GA single-rotor mounted and trailed rotary rakes are designed to meet the needs of hay producers who demand higher productivity, while they increase the quality of their hay and forage crops. Large, well-formed windrows promote faster drying, enabling producers to harvest crops at their peak nutritional value with less reliance on the weather.
Drive components are protected from debris in the fully enclosed, heavy-duty, double reduction Masterdrive® gearbox which requires minimal maintenance. The pivoting headstock, on the GA 4121 GM and GA 4321 GM mounted models, ensures maneuverability, improved terrain following, raking quality and consistent windrow shape. While the simple clevis hitch, on the GA 4220 TH and GA 4221 GTH trailed models, allows you to quickly hookup and go. Tangential, double-curved tine arms allow these rakes to work at various speeds, while still gently raking, assuring raking quality. Since the tines do not normally contact the soil, there is less opportunity for contaminants to enter the windrow, resulting in higher forage quality.
Mounted Models: GA 4121 GM and GA 4321 GM. Trailed Models: GA 4220 TH and GA 4221 GTH. - Less
The KUHN GA single-rotor mounted and trailed rotary rakes are designed to meet the needs of hay producers who demand higher productivity, while they increase the quality of their hay and forage crops. Large, well-formed windrows promote faster drying, enabling producers to harvest crops at their peak nutritional value ... + Read More
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Features
Proven and Durable Components to Assist You with Raking
Masterdrive® Gearbox
The KUHN exclusive Masterdrive double-reduction gearbox is designed for all types of crops, larger rotors, and demanding conditions. The fully enclosed Masterdrive double-reduction gearbox incorporates a two-stage reduction drive for increased durability and reliability with a longer service life and lower power requirement. The large gears and gear teeth are meshed together with tight clearances to minimize wear and provide the best overall power transmission for maximum efficiency.
Double-Curved Tine Arms
Double-curved tine arms are designed to form fluffy and straight windrows for superior raking quality at high speeds. Fluffy windrows allow more air movement through the crop promoting fast and uniform drying!
KUHN rotary rakes achieve this by following two basic principles for ideal windrow formation. First, the tine arms maintain a positive forward position right up to the point where the forage is delivered to the windrow ensuring gentle crop handling and minimal ash incorporation. Second, a steep cam track allows the tines to be raised very quickly to provide additional clearance over the windrow.
Maximum Operator Efficiency and Comfort
Right-Hand Delivery
For maximum operator efficiency and comfort, right-hand delivery is ideal. All KUHN single-rotor rakes above a 13’ working width feature right-hand delivery as standard due to the double-reduction Masterdrive® gearbox. You can monitor raking quality and make adjustments at the same time with both the windrow and tractor controls conveniently located on the right side.
Narrow Transport Width
Road transport can be accomplished with complete peace of mind – simply store the tine arms in the convenient rack at the front of the machine and fold up the guards vertically. Lighting and turn signals are also standard for maximum safety. (Tine arm removal not possible on GA 4220 TH)
Spring Design
The right guard and windrow deflector can be easily raised and lowered with the assistance of the convenient spring design.
Superior Ground Adaptation
Tandem Axles
Equipped with standard tandem axles, GA trailed rotary rakes are designed to handle uneven ground. They smooth out bumps and holes keeping the distance between the ground and tines constant. The close positioning of the wheels to the tines provides smooth operation.
Prop Wheel
All mounted KUHN rotary rakes can be fitted with an additional prop wheel at the front of the rotor. This additional wheel provides improved raking performance and enhanced following of changing ground contours.
Second Dampener
GA 4321 GM mounted models are available with an optional second dampener. This will allow these models to run more smoothly over bumpy and hilly fields.
Specifications
Model | GA 4221 GTH |
Working width - includes windrow | 13'5" (4.1 m) |
Clean swept width | 9'2" (2.8 m) |
Transport width | - |
Transport width with arms removed | 6'5" (2.0 m) |
Lift height under tines | 16" (41 cm) |
Double curved tangential mounted tine arms | Standard |
Frame stabilizer | - |
Foldable safety guards | Standard |
Rotor diameter | 10'6" (3.2 m) |
Number of tines per tine arm | 4 |
Number of tine arms | 11 |
Fully enclosed gearbox | Masterdrive GI |
Removable tine arms | Standard |
Tandem axles | Standard |
Tires | 18 x 8.5-8 hyper-balloon |
Hydraulic lift mechanism | Standard |
PTO speed | 540 |
Wide angle PTO shaft | Standard |
Hitch | Drawbar |
Minimum PTO power requirement | 30 hp (22 kW) |
Road lights and signaling | Optional |
Machine net weight approx. | 1,371 lbs (622 kg) |
Safety chain | Standard |
Shipping information: gross total weight | 1,675 lbs (760 kg) |
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