2019 Kuhn GA 4121 GM / 4220 TH / 4221 GTH / 4321 GM (GA 4221 GTH)

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GA 4121 GM / 4220 TH / 4221 GTH / 4321 GM (GA 4221 GTH)



Meeting the Challenge of Varying Field Conditions

Large working widths, fast working speeds and increased maneuverability allow for outstanding productivity with these single-rotor mounted and trailed rotary rakes. The working width of these models varies from 13'5" to 13'9".

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.

  • Working width - includes windrow: 13'5" (4.1 m)
  • Clean swept width: 9'2" (2.8 m)
  • Windrow width: 4'3" (1.3 m)
  • Transport width with arms removed: 6'5" (2.0 m)
  • Lift height under tines: 16" (41 cm)
  • Double curved tangential mounted tine arms: Standard
  • Foldable safety guards: Standard
  • Rotor diameter: 10'6" (3.2 m)
  • Number of tines per tine arm: 4
  • Tine arm mounting: 11
  • Fully enclosed gearbox: Masterdrive GI
  • Removable tine arms: Standard
  • Tandem axles: Standard
  • Tires: 18 x 8.5-8
  • Hydraulic lift mechanism: Standard
  • PTO speed: 540 rpm
  • Wide angle PTO shaft: Standard
  • Hitch: Drawbar
  • Minimum PTO power requirement: 30 hp (22 kW)
  • Road lights and signaling: Optional
  • Machine net weight approx.: 1,380 lb. (625 kg)
  • Safety chain: Standard
  • Shipping information: gross total weight: 1,675 lb. (760 kg)



Working Width
13 ft. 5 in. (4.1 m)
1,380 lb. (625 kg)
Recommended HP
30 hp (22 kW)


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