Soil protection with Yokohama Off-Highway Tires (YOHT) Very High Flexion (VF) technology

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  • Soil protection is paramount
  • High effectiveness through the combination of flotation tires and VF technology
  • Reduced inflation pressure or more load: flexibility for site- and situation-specific strategies
  • ILVO/Inagro event: Innovative concepts against soil compaction
  • YOHT is leader in the global flotation radial market 

Conserving agricultural soils as finite resource for the production of food, feed and fibre for a growing world population is of utmost importance. 

When soils are compacted by large and heavy machinery, this poses a major thread to sustainable land use in general and soil fertility in particular. In order to avoid negative effects on root growth, nutrient uptake and water management and associated losses in crop growth and yields, soil compaction must be avoided to the greatest possible extend – without, however, compromising efficiency and productivity of farmers around the globe. 

That is why engineers at YOHT have been continuously working on radial tractor tires, on Improved Flexion (IF) and Very High Flexion (VF) tractor tires, on radial flotation tires for trailers and – as a true world’s first – the combination of flotation and VF technology in the Alliance 389 VF tire for trailers, thus boosting soil protection and efficient operations to unprecedented levels.

Evidence of how these technologies work in the field was presented during practical demonstrations at the ILVO/Inagro event at the Bayer ForwardFarm Hof ten Bosch in Huldenberg, Belgium, on 15th September. 

Mounted on a trailer and combined with an air pressure control system, tires such as the Alliance 389 VF-IMP made soil protection visible and measurable.

The Alliance A389 VF-IMP features a special tread design for extraordinary grip, excellent flotation and effective self-cleaning as well as a 25% larger footprint for significantly lower soil compaction. 

In addition, this tire is characterised by a very strong carcass to carry loads at 30% lower inflation pressure – which can go down to 0.8 bar in the field – steel belts for reduced rolling resistance and minimum downtime, and special compounds for better overall performance and low wear. 

The non-directional tread design with unique ‘S-shaped’ centre blocks ensures optimum traction on all soil types, effective steering in both directions, and easy mounting. “As could be seen in the course of the practical demonstrations at Hof ten Bosch, flotation and VF technology of Alliance offer a convincing overall package – and this even more so with an air pressure control system, allowing for the adaptation of the inflation pressure for in-field work and on-road transport. These tires were designed to avoid soil compaction and to allow for efficient operations – and they truly deliver. Measurements in the field with a folding yardstick and a penetrometer clearly showed the positive effects of our combination of flotation and VF technology”, concluded Gerrit Vinkers, Customer Quality Improvement and Application Specialist at YOHT.

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