Robustness meets comfort
GA 7631, GA 8131, GA 8731 and GA 9531 twin rotor rakes deliver central swaths. Grass is raked across a width of 7.70 m to 9.30 m. They are ideal for intensive operations thanks to their MASTERDRIVE GIII gearbox.
The GA 7631, GA 8131, GA 8731 and GA 9531 semi-mounted rakes stand out from the competing models in their robustness, reliability and ground adaption. With working widths of 7.50 to 9.30 m, the workflow will be high while keeping an excellent ground following. With the MASTERDRIVE GIII rotor drive, these rakes are well prepared for use in difficult conditions. You form uniform swaths with a structure that promotes aeration and pick-up by the following harvesting equipment.
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.
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).