RDS/radial rear axle & AIRBOX/drive front axle
2 line tyre inflation system for tractors with full-floating axles and stub axles
The perfect system for comfortably adjusting tyre 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 (stator) to a rotating component (rotor). For this process to work, pressure-resilient gasket seals are installed in the stator that in interacting with the rotor cause annular channels through which the air pressure flows, of course, also 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 tyre valve.
At the front axle, the rotary joint is bolted onto the wheel studs concentrically to the middle axle using a fitting stirrup. Rotor and stator are embedded lined up with one another. Both a large line and a small control line rotate synchronously with the rotor and are led to the tyre 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 that 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 tyre is closed off and all transfer units (including gasket seals) are depressurized, thereby sparing the system from unnecessary wear. This technology also sees to it that the tyre loses no air in the event of a leak in the regulating system or a break in the line, thereby guaranteeing increased safety.
The air supply comes from the vehicle’s own compressor and an air reservoir of the braking system. A brake safety valve, the so-called overflow valve, sees to it that the pressure in the air brake reservoir cannot fall below 6.5 bar (94 psi) so that the brakes have priority over the tyre inflation system.
In the rim, a tyre valve with a non-return finger device is installed that will immediately close in the event a line tears and will keep the tyre from losing pressure.
Operating the RDS/radial is done simply and comfortably from the control console of the digital control or the ISOBUS terminal of the tractor.
The adjustable tyre pressures for work in the field and on the road are selected at the push of a button for all tyres connected to the system. After activating the system, all selected tyre pressure values in every tyre are automatically adjusted and once that is complete, the system turns itself off. The system can, of course, be turned off at any time at the push of a button.