For over 30 years, PTG has been designing, producing and selling systems for quickly adjusting tire pressure on agricultural vehicles and trailers. PTG has been part of the Michelin Group since 2018.

From the AIRBOOSTER^®plus and the AIRBOX/mobil for quick tire pressure adjustment while stationary to our CTIS and AIRBOX/drive systems for fully automatic tire pressure adjustment while in motion.
All systems where a line is routed over the fender on an external rotary union are called AIRBOX/drive
Systems where a line is routed along the axle or through the axle to an internal rotary union are called CTIS.

Various powerful air supply systems and individual solutions complete our product range.