Michelin is launching a new CargoXBib High Flotation trailer tyre designed to keep soil compaction to an absolute minimum - they have four VF-rated sizes.
Said to be manufactured with increased flexibility, the VF 650/55 R26.5, VF 600/55 R26.5, VF 710/50 R26.5 and VF 750/60 R30.5 have even less impact on the soil than the existing CargoXBib High Flotation range.
Designed specifically for trailers, spreaders and slurry tankers, the new VF CargoXBib High Flotation tyre will replace the CargoXBib High Flotation tyres in the four equivalent sizes.
According to Michelin, the VF rating sets new standards in the market, allowing the tyre to carry 40% more load at the same pressure than a standard tyre.
The soil is preserved better, due to the 23 % larger footprint area than that of its predecessor when combined with its ability to run at very low pressures.
The new tyres will be launched onto both the original equipment and replacement markets in July 2019.
Importance of tyre selection
Selecting the right tyres for the rear of harvesters rather than putting all the focus on the front axle is very important, according to Michelin.
Customer Engineering Support Manager at Michelin, Gordon Brookes (the Michelin Man) believes that “the issue is increasing in importance as harvesters grow in size, weight and power.”
He also states that farmers should seek expert advice from their tyre manufacturer or dealer.
“The rear axle is the smallest tyre, so that’s always going to be where the damage is most likely to be done, he said.
He also pointed out that it is common for farmers to naturally look at the front because that is where everything is going on; while often forgetting that when the combine is full, the back end is extremely heavy – despite being on a very small tyre.
“When travelling without the header mounted, there is no weight transfer from the rear axle so the rear tyre loads can be very high. Sometimes you’ll even see the rear axle specified on the same tyres you’d fit on a loader – so shifting some of the focus from front to rear would pay huge dividends so far as soil compaction is concerned.”
The Michelin man also said that farmers should focus their attention on tyre pressures as they are not always set to the correct psi due to the fact that manufacturers leave them at fitting pressure but don’t know how the machine will be used on the farm or in what conditions.
Tyre pressures are dependent on what is being harvested “setting up new harvester tyres correctly is essential,” said the representative.
Opt for the latest CFO+ (Cyclic Field Operations) rated tyres where possible because they offer the highest load capacity and the lowest pressure for a given load.
The advice is that “CFO+ rated tyres are based on a 1,500m cycle, and if that’s not enough to fill the tank, then you most likely haven’t got a good crop!
There are other cyclic markings for other tyres on the market, but the load benefit isn’t as high, and the cycle distance isn’t as great,” said the Engineering support manager.
“Some are only up to 600m, plus they can come with other limitations for things like working on side slopes. It pays to specify the best tyre you can from the outset, and then enjoy the benefits,” he concluded.
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