RDS/radial 2L rear axle & AIRBOX/drive front axle for tractors

The perfect system for comfortably adjusting tire inflation while on the move. It is suited for all tractors with full floating axles.

In principle, the RDS/radial and AIRBOX/drive system work by transferring air from a stationary component, the stator, to a rotating component, the rotor. For this process to work, pressure resilient gasket seals are installed in the stator. Together with the rotor, they form annular channels through which the air pressure flows, even while the vehicle is moving.

At the rear axle, the stator is screwed onto the axle funnel concentrically to the middle axle. The rotor sits lined up with the stator on the axle shaft and is secured using a clamping fastener. Both a large line and a small control line rotate synchronously with the rotor and are led to the tire valve.

At the front axle, the rotary joint is bolted onto the wheel studs concentrically to the middle axle using a fitting stirrup. The rotor and stator are embedded and lined up with one another. Both a large line and a small control line rotate synchronously with the rotor and are led to the tire valve.

The air lines at the front axle run over the fender through a telescopic tube and are led to the middle of the wheel. Using the telescopic tube, the clearance to the side of the rotating wheel can be individually adjusted.

The large line and the control line are connected to the rotary joints using quick action couplings, so they can be easily removed when not in use and placed on the fenders in dummy couplers.

The rotary joints and the entire air line system at the front and rear axles are pressurized only during an active control cycle. The patented two line principle ensures that after every pressure change, the tire is closed off and all transfer units, including gasket seals, are depressurized. This protects the system from unnecessary wear. This technology also ensures that the tire loses no air in the event of a leak in the regulating system or a break in the line, thereby providing increased safety.

The air supply comes from the vehicle’s own compressor and an air reservoir of the braking system. A brake safety valve, called the overflow valve, ensures that the pressure in the air brake reservoir cannot fall below 6.5 bar (94 psi), so that the brakes have priority over the tire inflation system.

In the rim, a tire valve with a non return device is installed. It immediately closes if a line tears and prevents the tire from losing pressure.

Operating the RDS/radial is done simply and comfortably from the control console of the digital control system or the ISOBUS terminal of the tractor.

The adjustable tire pressures for work in the field and on the road are selected at the push of a button for all tires connected to the system. After activating the system, all selected tire pressure values in every tire are automatically adjusted. Once complete, the system turns itself off. The system can also be turned off at any time at the push of a button.