Integrated tyre pressure regulation system Fendt VarioGrip.

The right tyre pressure, every time.

The integrated tyre pressure regulation system VarioGrip very quickly adapts the tyre pressure from 0.6 to 2.5 bar – even while driving. This happens on all four wheels with the integral radial rotary feed-through, which is designed to last the lifetime of the tractor. Air is supplied via a water-cooled double-compressor as well as the vehicle's own valve equipment.

VarioGrip is available for flange and bar axles, and lets you adjust the tyre pressure at the touch of a button, even with dual tyres.

What makes Fendt VarioGrip so special?

Here you can see our special Fendt solutions – our Fendt Spotlights – that make the Fendt VarioGrip tyre pressure regulation system so unique.

900 Vario CGI with a plotted image showing the valve and air flow solution design.

VarioGrip is Fendt's fully integrated tyre pressure regulation system with a tractor-specific valve and air flow solution. The complete solution has a water-cooled high-performance compressor with two pistons for excellent air flow.

Fendt tyres with red rim and integrated tyre pressure regulation system, red hub cap fitted, with the inscription 'VarioGrip'.

Best protection

The protected design gives you a system with maximum operational reliability and durability. There is no risk of protruding air ducts causing tearing.

Easy to control on the Varioterminal

The regulation system works easily at the push of a button on the Varioterminal. You can set the tyre pressure for field work and road use separately on the front and rear axles. These settings are stored in the Varioterminal, so the system can regulate the tyre pressure even on the move.

The assist system informs the driver if the tyre pressure is too low or too high.

Clear advantages.

The integrated tyre pressure regulation system Fendt VarioGrip is not only gentle on your soil, but also reduces diesel consumption, saves time and money and increases your productivity.

Soil protection and higher yield

Protects the soil

The main soil protection measure practised in the agricultural sector is to reduce contact area pressure. Less air pressure in the tyre creates a greater contact area, distributing the load over a larger area.

Better soil fertility

The right tyre pressure increases efficiency and gently transfers the tractor's power to the ground. The result is better soil fertility and higher production rates.

Fertile soil

Air and water are stored in pores in the soil. Fertile soil is made up of around 40% loose pores and 60% solid matter.* This solid matter carries all the load in the cultivation process. Adapting the air pressure helps build up and preserve the porous structure.

_{* Source: Prof. Dr. Volk, Soest University of Applied Sciences}

Distributed ground pressure

It's a well-known fact: an adapted, reduced tyre pressure not only increases area coverage and reduces diesel consumption, but also effectively protects the soil. A softer, wider tyre increases the ground contact area to better distribute the load and reduce the ground pressure. If the tyre is narrow and hard, not only does it unnecessarily compact normally structured soil, the treads also further damage the topsoil with the 'slip and rip' effect* and generate more fuel consumption. Tracks deeper than 10 cm will double fuel consumption*.

_{* Source: Prof. Dr. Volk, Soest University of Applied Sciences}

Make the right tracks.

The image shows the imprint of the same tractor tyre, once highly inflated (right) and once less inflated (left). The length of the tyre imprint shows how the air pressure in the tyre impacts the ground. The image on the right shows the imprint of a highly inflated tyre. You can clearly see the shorter contact area. The weight is less distributed and the tyre sinks deeper into the ground. The image on the left shows the same tyre, less inflated this time. The tyre can expand and distribute the load better over the ground. This makes the contact area much longer and wider, reducing the ground pressure.

Up to 8% less diesel consumption on the field

Diagram showing diesel consumption on the field depending on the tyre pressure: 13.5 l/ha at 1.8 bar. 13 l/ha at 1.3 bar. 12.5 l/ha at 0.8 bar.

With VarioGrip, you can perfectly adapt the tyre pressure for field work and road use. It takes just a few minutes with easy controls on the Varioterminal. Setting the pressure to 0.8 bar (instead of the usual 1.8 bar) can reduce diesel consumption in field work by 8% per hectare.**

_{** 1.8 bar is assumed as the usual half-way air pressure for both road and field use, without adjusting the air pressure.}

Up to 2% less diesel consumption on the road

Diagram showing journey time as a % depending on the tyre pressure: 109% at 1.5 bar. 100% at 1.8 bar. 97% at 2.4 bar.

Even on the road with a pressure of 2.4 bar (instead of 1.8 bar) with a full trailer, you can reduce consumption by 2%.**

_{**1.8 bar is assumed as the usual half-way air pressure for both road and field use, without adjusting the air pressure.}

Up to 3% faster on the road with the same engine output

Increased tyre air pressure on the road reduces rolling resistance and promotes driving safety. This gives you the benefits of both lower fuel consumption and safe handling.

A tyre pressure of 2.4 bar on the road instead of the usual 1.8 bar results in up to 3% shorter journey times with 2% less diesel consumption.

Low tyre wear increases tyre life even at higher speeds. At the same engine output, you can shorten your transport times.

2.4 bar tyre pressure on the road means:

3% less journey time
2% less diesel

Up to 8% more area capacity in the same amount of time

Diagram showing area coverage depending on the tyre pressure: 3.54 ha/h at 1.8 bar. 3.71 ha/h at 1.3 bar. 3.83 ha/h at 0.8 bar.

The right tyre pressure transfers more power to the ground for increased traction power. By adapting the tyre pressure, you can effectively reduce slippage and rolling resistance. And this has a positive effect on your area coverage! If you reduce high tyre pressure for heavy-going field work, the tyre's ground contact area is automatically increased. The resulting slippage reduction and increase in efficiency results in up to 8% more area coverage in the same amount of time.

Savings potential of up to €50,000

If you set the tyre pressure to 0.8 bar instead of the usual 1.8 bar for soil cultivation, you can enjoy 10% more traction power. This results in a greater area coverage of 8%, also reducing your diesel consumption by 8% per hectare.

If you do 500 hours of heavy-going traction work per year, that's 40 fewer hours you have to work. Converted to operating hours, the increased area coverage and reduced diesel consumption mean savings of up to €10 per hour*. Assuming that half the tractor's operating hours are spent on heavy traction work, that's a potential saving of €50,000 for every 10,000 operating hours.**

A tyre pressure of 0.8 bar means:

€10 saved every hour
€50,000 saved over 5,000 hours of traction work

_{* South Westphalia University of Applied Sciences, Agriculture, Soest
** Based on 10,000 operating hours, 50% traction work, 5,000 operating hours x €10}

Technology: Here's how the tyre pressure regulation system Fendt VarioGrip works

Radial rotary feedthroughs are located on the front and rear axles. With our two-line solution, the control line opens the tyre valve and the inflation line inflates/deflates the tyre. The rotary feedthroughs are subject to low stress, as they are only under pressure for inflation and deflation.

Smartly integrated on the front axle.

The lines of the VarioGrip tyre pressure regulation system run through a radial rotary feedthrough. The valve on the tyre is opened pneumatically via the control line (green). The tyre can be quickly inflated or deflated via the inflation line (blue).

Perfectly ballasted with the Fendt Grip Assistant.

Besides the tyre pressure, the ballasting and working speed are also decisive for power transfer to the ground. The new solution is called: Fendt Grip Assistant. Fully integrated in the Varioterminal, this assistant quickly determines the right tyre pressure, ideal ballast weight and driving speed. Depending on the implement or ballast of the tractor, the Grip Assistant recommends either front and wheel weights, or the optimal working speed.

Varioterminal in landscape mode with Fendt Grip Assistant settings.

The Grip Assistant recommends the right tyre pressure and ballasting for a defined speed when in Speed Select mode. In Ballast Select mode, the assistant recommends the ideal working speed as well as the optimal tyre pressure for a defined ballast.

Image sources: AGCO/Fendt, Prof. Dr. Volk, Soest University of Applied Sciences