Agricultural & OTR Tire Application Engineering

Very High Flexion (VF) and Intermediate Flexion (IF) tire technology addresses the fundamental soil compaction challenge: conventional agricultural tires running at the inflation pressures needed to support heavy tractor loads cause soil compaction at depths of 30 to 50 cm, which destroys soil structure, reduces water infiltration, and can reduce crop yields by 10 to 20 percent. VF tires operate at 40 percent lower inflation pressure than equivalent conventional tires at the same load - a VF tire carrying a 5-tonne axle load at 1.0 bar does what a conventional tire would need 1.7 bar to achieve. IF technology provides 20 percent inflation pressure reduction versus conventional.

Achieving VF certification under ETRTO (European Tyre and Rim Technical Organisation) standards requires a more flexible carcass construction - higher ply count in lighter gauge, with different breaker design - that maintains structural integrity at low pressures while generating the larger, more even contact patch footprint that delivers reduced ground pressure. The compound must maintain these properties across the operating temperature range from sub-zero spring planting to peak summer harvest temperatures, and the lug design must optimize traction without excessive soil throwing at the high carcass deflection present in VF operation.

Flotation tires - extremely wide, low-aspect-ratio agricultural tires - are used on sprayers and specialty equipment where very low ground pressure is needed to operate in wet or delicate soil conditions that would cause unacceptable rutting from conventional tractor tires. The $0.3 billion flotation market is a specialty segment but one with very high average selling prices and limited competitive supply, creating attractive margin opportunities for manufacturers with the capability to produce very wide low-pressure agricultural constructions.

Specialty applications beyond flotation include paddy field tires (designed for waterlogged conditions with specialized lug geometry for soft mud traction), forestry tires (with reinforced sidewall protection against branch puncture in logging operations), and vineyard/orchard narrow tires for precision crop row spacing applications. Each specialty segment has distinct engineering requirements and a limited pool of qualified suppliers, creating the condition for pricing power and long-term supply relationships.