The AIRBOX/drive 1 line technology is a “retrofit system” with which you can comfortably adjust tire pressure from the cab while the vehicle is moving. Without the tediousness of stopping and dismounting, drive with low tire pressure in the field doing the least amount of harm to the soil and on the road with high tire pressure saving fuel and doing the least amount of wear to the tires. It is suited for all agricultural trailers and designed for self-installation.
In principle, the AIRBOX/drive 1 line technology works 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.
The rotary joint is screwed onto the wheel studs concentrically to the middle axle using a fitting stirrup. Rotor and stator are embedded lined up with one another. A large line runs from the rotor to the synchronously rotating tire valve.
A ball valve is mounted in the rim that must be closed by hand after the vehicle has been parked.
The air line is led to the tire over the fender through a telescopic tube 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 is connected to the rotary joints using quick-action couplings so that it can be easily removed when not in use and placed on the fenders in empty coupling points.
The system is connected via a safety valve to the air brake system so that 6.5 bar (94 psi) of pressure supply in the air brake reservoir is guaranteed at all times.
Due to the large volume of the tires on the vehicle, the use of separate/additional air supply systems is usually necessary. PTG offers various air supply systems that turn on and off automatically as needed.
Operating the system is done from the cab using the control console of the pneumatic control.