Everything a large model has

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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Choose these mounted single-rotor rakes for their reliability equivalent to our large-width rakes with twin or 4 rotors. They have the same MASTER DRIVE GIII gearbox adapted to the most intensive uses! With working widths from 4.40 to 5.00 m, they also have ergonomic advantages, especially in terms of arm removal and machine folding for transport.

Your Benefits

As reliable as a large model

MASTER DRIVE GIII gearbox: reliable and wear-resistant

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.

Robust attachments

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.

  • Important components have been strengthened to make the rotors lighter yet more robust:
  • Aluminium housings.
  • Optimised cam track to reduce forces on the roller.
  • Larger diameter roller to reduce rotation speed and pressure on the cam.
  • Tine arms with large diameter bearings.
  • Stronger pivoting-tine-arm shaft.
  • Reinforced main shaft.
  • Reinforced mounting of the tine arms on the tine holders (bolted

GA 5031: for the big jobs

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!

Easy and agronomical folding and adjustments

Changing plot is easy

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.

A crank handle to set raking height

Raking height is easy to adjust via a crank handle.

Swath curtain and guards deployed simply

The swath curtain and guards can be deployed hydraulically (optional equipment) or manually, very easily thanks to a weight compensation spring.

Smooth driving

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.

Top quality forage

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.

Make swaths, don't break them!

The lift system allows you to reach a swath bypass height which is over 40 cm for mounted models.


Technical characteristics

GA 4431GA 4731GA 5031
Working width (m)4.404.655.00
Average windrow width (m)0.70-1.500.70-1.500.70-1.50
Windrow deflectorWindrow curtainWindrow curtainWindrow curtain
Transport width with arms disconnected/connected (m)2.25/3.752.45/4.002.75/4.35
Guard unfolding and foldingmanual as standard - hydraulic as optional equipment manual as standard - hydraulic as optional equipment manual as standard - hydraulic as optional equipment
Control of the windrow curtainmanual 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)1/3.401/3.651/4.00
Number of tine arms per rotor / Number of tines per tine arm12/413/415/4
Tine armsRemovableRemovableRemovable
GearboxFully enclosed double reduction MASTER DRIVE GIIIFully enclosed double reduction MASTER DRIVE GIIIFully enclosed double reduction MASTER DRIVE GIII
Bogie axlesAs standardAs standardAs standard
Wheel typeFixedFixedFixed
Raking height adjustmentBy crank handleBy crank handleBy crank handle
Tyres on each rotor16 x 6.50 - 816 x 6.50 - 816 x 6.50 - 8
Drive to rotorsMechanical with integrated free wheelMechanical with integrated free wheelMechanical with integrated free wheel
Hitch3-point Cat 23-point Cat 23-point Cat 2
Headstock stabilisersAs standard As standard As standard
Theoretical tractor power requirement (kW/hp)23/3026/3530/40
Required tractor hydraulic connections---
Road lights and signalingAs optional equipment As optional equipment As optional equipment
Approx. weight (kg)724750812