Due to their construction, radial tires are commonplace in agriculture for their improved traction, minimal soil compaction, and equipment performance.
The chamber in the radial casing takes on a larger part of the load carrying capacity, moving from 60% to 80% of the axle load carrying capability:
The Benefits of Radial Ag Tires
Whether mounted as a single tire, dual, or triple fitment, radial tires’ advantage comes from the air pressure in the inner chamber that changes depending on load. All tires compromise between load and speed, but radial casings and rubber compounds have been enhanced over time.
Over the last 20 years, radial tires evolved from the traditional dual speed rating of A8 = 25 MPH / B = 30 MPH to a “D” Rating = 40 MPH capability. Of course, radial tires must be engineered to not only carry loads but have the endurance to deflect as the tire absorbs the energy generated by both load and speed.
VF Technology and Tire Pressure
For agricultural tires, whether using IF or VF technology tires, farmers and growers can either lower air pressure without compromising carrying capacity, or increase the weight carried with the same tire footprint. VF tire technology uses different casing and rubber materials to achieve better yields or greater productivity in the field with heavier or faster machinery. With 40% less air inflation pressure, VF Tires:
- Reduce soil compaction, improving yields.
- Operate safely with a higher heat resistance despite lower air pressure.
- Improved the ride and with a greater contact patch (or flotation) as traction improves.
- Greatly enhance both traction and stability when on slope fields.
Even at standard pressures, VF tires still offer the best load carrying capacity. Compared to IF tires, the benefits are only 20% greater than standard tires. Below is a demonstration of the changes in tire footprint based on IF and VF technology:
Using Central Inflation Systems
Central inflation and on-boars tire monitoring systems can inflate or deflate the tires as needed.
Based on the required speed or working load demand, these systems receive data using either an RFID or sensor tag, thus giving the operator the capability to adjust the tire inflation pressure in real time. By using the tools at your disposal, you can effectively monitor your tires’ pressure to improve their performance.
Conclusion
Whether in the field or on the road, adjusting tire pressure to match the job unlocks critical benefits:
- Reduced Soil Compaction: Optimized contact pressure preserves soil structure
- Improved Yields: Healthier root zones support better crop performance
- Longer Tire Life: Proper deflection prevents uneven wear and sidewall stress
- Better Fuel Efficiency: Reduced rolling resistance lowers operating costs
- Enhanced Productivity: Optimal traction and footprint maximize field efficiency
