The AIRBOX/drive 1 line technology is a retrofit system that allows you to comfortably adjust tire pressure from the cab while the vehicle is moving. Without the need to stop and dismount, you can drive with low tire pressure in the field to reduce soil damage, and with high tire pressure on the road to save fuel and reduce tire wear. It is suited for all agricultural trailers and is designed for self installation.
In principle, the AIRBOX/drive 1 line technology works 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.
The rotary joint is screwed 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. A large line runs from the rotor to the synchronously rotating tire valve.
A ball valve is mounted in the rim and 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 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 or 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.
