Kuhn GA 6501

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Proven and Durable Components for Superior Raking

Fully Enclosed Gear Case

The fully enclosed single-stage gearbox is grease filled and sealed to be maintenance free ensuring a long life. For additional durability, the tine arm holders are fixed on both the upper and lower gearcase covers. The gearbox houses a cam track with a profile optimized for fast lifting action that creates a well-formed windrow while maintaining high clearance over the windrow.

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.

Easy, Trouble-Free Adjustments

Adjustable Working Width

GA 6501: In many crops, the density makes it necessary to adjust the windrow width. You can quickly adjust the working width and windrow width with a pin. The working width on the GA 6501 can be adjusted from 17’9” to 21’, and the windrow width from 3’3” to 6’7”.

Hydraulic Working Width Adjustment – GA 7501+

Easily adjust the working width hydraulically from the seat of the tractor. The hydraulic adjustment is standard on the GA 7501+. The working width can be adjusted from 22’5” to 24’5”. The windrow width from 3’7” to 6’3”.

Adjustable Tine Height

Tine height adjustment, by a simple crank handle on each rotor, engages the tines in the stubble to get clean movement of crop to the windrow without digging in the soil.

Maneuverability and Stability on Uneven Ground

Pivoting Headstock

Increases maneuverability and stability on uneven ground. It also provides added comfort during transport, increasing your safety and peace of mind.

3D Suspension

For raking when every leaf counts, rotors closely follow the ground over undulating terrain. The tines collect the crop with the greatest precision: a particular benefit when raking rolling ground.

Tandem Axle

A tandem axle for rotor guidance is ideal for raking difficult terrain (deep pivot tracks, uneven ground after grazing, etc.) and where higher raking speeds are desired. (GA 7501+ only)


Model GA 6501
Working width - includes windrow 17'9" - 21' (5.4 - 6.4 m)
Clean swept width 17'1" - 20'4" (5.2 - 6.2 m)
Windrow width 3'3" - 6'7" (1.0 - 2.0 m)
Transport width 8'2'' (2.5 m)
Double curved tangential mounted tine arms Standard
Foldable safety guards Standard
Number of rotors 2
Vertical hydraulic folding rotors Standard
Rotor diameter 2 x 8'7'' (2.6 m)
Number of tines per tine arm 3
Number of tine arms 10 x 2
Center swath screen -
Fully enclosed gearbox Standard
Ground adaptation 3-D terrain following
Removable tine arms -
Rotor flotation 3-D terrain following
Transport tires 195/65 R15
Rear wheel steering Optional
Tires on each rotor 3 x 16 x 6.50-8 super-balloon tires
PTO speed 540
Overrunning clutch on PTO Standard
Hitch 2-point semi-mounted
Minimum PTO power requirement 40 hp (30 kW)
Minimum hydraulic pressure 1,750
Required tractor hydraulic connections 1 DA
Road lights and signaling Standard
Machine net weight approx. 2,778 lbs (1,260 kg)
Check chain -