Michelin has conducted farm trials in Scotland to demonstrate the benefits of using a Central Tyre Inflation System with its Ultraflex technology tractor and trailer tyres.
The trials compared the differences between a Fendt 939 tractor and the latest generation Stewart Trailers tri-axle tipper when operating at conventional pressures against Michelin’s AxioBib and CargoXBib High Flotation tyres, operated at ultra-low pressures.
When optimised for field operation, these tyres enable pressures to be reduced from 20psi on the front and rear of the tractor and 35psi on the trailer, to 12psi, 15psi and 13psi respectively.
In testing, the tractor and trailer combination made five passes at each of the two pressure settings, whilst operating fully laden at 10kph on heavy blue clay in a gentle uphill direction. The trials demonstrated that lower pressures reduced rut depth by an average of 35.9 per cent, whilst also reducing pass times by 3.7 per cent, fuel usage by 9 per cent and wheel slip by 29.2 per cent. A 290 per cent improvement in water infiltration was also recorded.
The Fendt was fitted with Michelin IF650/65 R 34 and IF710/75 R42 AxioBib tyres, with 600/55 R26.5 CargoXBib High Flotation tyres on the trailer. For more information about the range of Michelin farm tyres available visit http://agricultural.michelin.co.uk