Yokohama Off-Highway Tires’ (YOHT) flagship brand Alliance recently released three new sizes of the proven Agriflex+ 372 radial tyre for tractors and harvesters.
With new sizes VF800/70R42, VF710/70R42 CFO and VF900/60R42, and another 15 new sizes released in 2022, a total of 18 new sizes of the Alliance Agriflex+ 372 (VF or Very High Flexion) tyre are now available.
The construction with increased sidewall flexibility enables the tyre to carry up to 40 per cent more load at the same pressure as compared to a standard tractor radial.
The tyre also offers a large footprint that reduces soil pressure and the resulting risk of soil compaction. In order to protect the soil against compaction under all circumstances, the Agriflex+ 372 is also able to carry the same load as a conventional radial tractor tyre at a 40 per cent lower tyre inflation pressure.
In addition to markedly reduced soil pressure, the tyre range ensures a comfortable ride for the driver both in the field and on the road. The larger footprint enables high traction, reduces fuel costs and increases overall operational productivity.
The R-1W lug pattern provides excellent grip as well as long tyre life on hard surfaces. In terms of load carrying capacity, roadability, soil protection and traction, the Alliance Agriflex+ 372 delivers a clear 10/10.
Low downtime, efficiency increases and reduced fuel consumption further add to the convincing performance of the tubeless tyre with its directional pattern, steel-belt and stubble guard tread compound.
The VF tyres are recognised as a leader in the global flotation radial market: the Alliance VF technology delivers in terms of effective soil protection, efficiency gains and yield increases, according to YOHT.
In order to highlight positive practical experience by solid data, a scientific field experiment was conducted by the Danish research body SEGES Innovation in 2021. The results of the field studies revealed the positive effects of Alliance’s Very High Flexion (VF) tyres in comparison to conventional tyres.
Tested on a tractor-trailer-combination, the low inflation pressure of the Agriflex+ 372 and the Agriflex+ 389 tyres cut the track depth during the application of liquid manure in half.
At the same time, wheel slip was reduced by 4.4 per cent, and measurements with a penetrometer showed lower soil compaction in the ‘VF tire tracks’ in the soil zone from 0 to 40 cm.
Furthermore, maize yields in the tracks on ‘VF tyre plots’ exceeded those of the tracks on the ‘conventional tyre plots’ significantly by about 12.9 harvest units per hectare, i.e. by about 10 per cent.
Thanks to the Alliance VF tyres – and depending on the working width of the liquid manure spreader – these results translate to yield increases between 1.5 and 2.2 per cent per hectare and calculated profit gains due to higher yields and reduced tyre slippage of up to almost 80 EUR per hectare.
For more information contact your nearest Alliance stockist.