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GA 4431, GA 4731 and GA 5031 are mounted single rotor rakes. They rake at a working width of 4.40 to 5.00 m. With the MASTERDRIVE GIII gearbox they are just as reliable as the larger models. Their arm holders make tine removal very easy.
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Today, farm machinery must work more and more hectares and withstand ever higher forces. Machine reliability and durability are the key to meet the requirements of users in terms of work output. The MASTERDRIVE GIII gearboxes have been developed to provide full protection of the drive components and improve wear resistance. This design ensures exceptional reliability and durability even for intensive use.
It includes a double reduction system with a bevel gear and a cylindrical gear. Bevel-reduction tolerances are tightly controlled making the system extremely reliable and robust, even in difficult conditions.
Gearbox wear is greatly reduced and no maintenance is required. The double reduction system makes it possible to include larger cylindrical gears with more teeth for better power transmission.
The MASTER DRIVE GIII gearbox has been designed to cope with ever increasing stress on the drive mainly due to: Increasing working widths and rotor diameters, raking heavier crops such as silage, haylage, straw and hay.
The GA 5031 is the biggest single rotor rake on the market.
With a 4 m diameter rotor for 5 metres of working width you can rake faster than with any other single rotor machine in the world!
These rakes were designed with new, more ergonomic arm holders and centralised locking. Remove arms and place them in the storage area effortlessly. The rotor can be turned to make each tine arm easy to access. It is very easy to change plots with the GA 1031 single rotor rake series. Practical when your fields are divided by roads.
Raking height is easy to adjust via a crank handle.
The swath curtain and guards can be deployed hydraulically (optional equipment) or manually, very easily thanks to a weight compensation spring.
Benefit from the stability of a single rotor on hilly and sloping ground. The mounted version has two side dampers with excellent machine-recentering capabilities. The headstock with 48° turning radius and bogie axle as standard, make this machine ideal in terms of manoeuvrability.
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:
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.
The lift system allows you to reach a swath bypass height which is over 40 cm for mounted models.
| GA 4431 | GA 4731 | GA 5031 | |
|---|---|---|---|
| Working width (m) | 4.40 | 4.65 | 5.00 |
| Average windrow width (m) | 0.70-1.50 | 0.70-1.50 | 0.70-1.50 |
| Windrow deflector | Windrow curtain | Windrow curtain | Windrow curtain |
| Transport width with arms disconnected/connected (m) | 2.25/3.75 | 2.45/4.00 | 2.75/4.35 |
| Guard unfolding and folding | manual as standard - hydraulic as optional equipment | manual as standard - hydraulic as optional equipment | manual as standard - hydraulic as optional equipment |
| Control of the windrow curtain | manual as standard - hydraulic as optional equipment | manual as standard - hydraulic as optional equipment | manual as standard - hydraulic as optional equipment |
| Number of rotors / Rotor diameter (m) | 1/3.40 | 1/3.65 | 1/4.00 |
| Number of tine arms per rotor / Number of tines per tine arm | 12/4 | 13/4 | 15/4 |
| Tine arms | Removable | Removable | Removable |
| Gearbox | Fully enclosed double reduction MASTER DRIVE GIII | Fully enclosed double reduction MASTER DRIVE GIII | Fully enclosed double reduction MASTER DRIVE GIII |
| Bogie axles | As standard | As standard | As standard |
| Wheel type | Fixed | Fixed | Fixed |
| Raking height adjustment | By crank handle | By crank handle | By crank handle |
| Tyres on each rotor | 16 x 6.50 - 8 | 16 x 6.50 - 8 | 16 x 6.50 - 8 |
| Drive to rotors | Mechanical with integrated free wheel | Mechanical with integrated free wheel | Mechanical with integrated free wheel |
| Hitch | 3-point Cat 2 | 3-point Cat 2 | 3-point Cat 2 |
| Headstock | Pivoting | Pivoting | Pivoting |
| Headstock stabilisers | As standard | As standard | As standard |
| Theoretical tractor power requirement (kW/hp) | 23/30 | 26/35 | 30/40 |
| Required tractor hydraulic connections | - | - | - |
| Road lights and signaling | As optional equipment | As optional equipment | As optional equipment |
| Approx. weight (kg) | 724 | 750 | 812 |
