Swath formation: the benefit of double-curved arms

The homogeneous quality and volume of the swath are conditions for fast drying and easy pick-up by the following baler.
The tine arms on GA rakes are in hyper-tangential position. This means that they reach a 90 degree angle very late. With the tines’ sharp-angled cam, tine clearance is quick, later and requires little rotational effort to produce regular, fluffy and straight swaths. Raking is of high quality even at high speeds because the forage is not pushed past the swath.
The advantages of double-curved arms:

• They reduce the distance between tine passes. Forage loss is reduced to a minimum, even at high speeds.
• The main weight is at the centre of the tine arm. This increases service life as it is not subject to pressure during rotation and the guide rollers are less subject to stress.

Protecting plant stubble

Perfect rotor adaption to variations in the field is just as important as reduced ground pressure when it comes to protecting the ground and plant stubble.
Single rotor rakes are fully equipped to meet these requirements.
Each rotor is equipped with four wheels in tandem positioned extremely close to the rotor for optimised contour following on uneven plots.

Adapt the swath to the volume of forage and width of the pick-up

8.40 to 12.50 m and 9.50 to 14.70 m working widths enable the outstanding work output that characterises GA 13131 and GA 15131 rakes. These large widths require excellent machine adaptability to balers and forage wagons. Their adaption capacity allows you to adjust the width of the swath continuously and hydraulically from the cab:

• For working width, the position of the front rotors is adjustable via hydraulic cylinders and angle sensors.
• Swath width can be changed at any time by repositioning the rear rotors. Swath width is between 1.40 and 2.40 m (and up to 2.50 m for the GA 15131).
• Despite their wide working widths, these four rotor rakes are flexible enough to work in triangular-shaped fields. As each rotor can be lifted individually, field pickets can be raked and obstacles avoided. Furthermore, high under-rotor clearance facilitates swath bypass.

For raking height adaption, the rotors can be adjusted simultaneously two-by-two at the front or the rear, or individually. Rotor height is displayed on the screen of the terminal and on the rotor frame.

More stability on slopes and on the road

The linkage system with integrated suspension makes driving smoother and improves stability between the tractor and the rake when turning. Badly-maintained roads are no longer a problem. You’ll appreciate the machine’s capacity on bends and its individual rotor lift with no jolting in the lift arms.
Despite their impressive size, these four rotor rakes are relatively compact in transport mode and easy to move around:

• In transport position the machines are less than 4.00 m in height, without having to remove the tine arms.
• Their low centre of gravity ensures stability on the road.