Did you know that incorrect tire pressure can result in hundreds of euros in additional costs per season? Setting the correct tire pressure for tractors and combines is not just a matter of comfort: it directly affects fuel consumption, soil compaction, traction, and tire lifespan. In modern agriculture, optimal tire pressure is one of the key requirements for efficient and precise operation.
Why is optimal tire pressure crucial?
1. Reducing soil compaction
If the tire pressure is too high, the machine’s weight is concentrated on a smaller surface area, causing increased soil compaction. This negatively affects soil water and air balance, hinders root development, and can reduce crop yields in the long term.
With lower - but still safe - pressure, the load is distributed over a larger surface, helping preserve soil structure.
2. Optimizing traction and pulling power
Proper tractor tire pressure ensures an ideal contact surface.
- Too low pressure → the tire deforms and becomes unstable.
- Too high pressure → reduced contact area and poorer traction.
The optimal setting improves power transfer, reduces slippage, and makes field operations like plowing, sowing, and soil work more efficient.
3. Fuel savings
Incorrect tire pressure increases rolling resistance, which directly leads to higher fuel consumption.
With proper settings, fuel consumption can be reduced by up to 10-15%. For a 200-horsepower tractor, this can mean saving several hundred liters of diesel per season.
4. Longer tire lifespan
Incorrect pressure leads to uneven wear:
- too high pressure → center wear
- too low pressure → shoulder wear
Optimal pressure extends the lifespan of agricultural tires, reducing replacement frequency.
Tractor tire pressure - what to consider?
For field work, lower pressure is generally recommended, typically 0.8-1.2 bar, to minimize soil compaction and improve traction.
For road transport, higher pressure is needed, usually 1.4-1.8 bar, which reduces rolling resistance and wear on tractor tires.
Important factors to consider:
- axle load (front-rear weight distribution)
- weight of the attached equipment
- radial vs. diagonal tires
- use of IF/VF tire technologies
IF and VF tires can carry higher loads at lower pressure, helping reduce soil compaction.
If you frequently switch between field and road, it’s worth using an automatic tire pressure control system (CTIS).
Combine tire pressure - why is it especially critical?
With combines, the biggest challenge is variable load. As the grain tank fills, the machine’s weight increases significantly.
Recommended range: 1.6-2.2 bar, depending on machine type and load.
Always follow the manufacturer’s recommendations.
How to check it properly?
- Use an accurate, preferably digital pressure gauge
- Measure when tires are cold, before starting work
- Consider temperature - pressure rises in heat and drops in cold
- Check regularly, especially before the season starts
Summary
Proper tire pressure is a fundamental element of modern agricultural technology. It not only protects the soil and extends tire lifespan but also results in direct cost savings.
Precision farming starts with the basics - and optimal tire pressure is one of the simplest yet most impactful ways to improve farm efficiency.
