Hendrickson Trailer Suspension Systems’ TIREMAAX PRO continuously monitors and adjusts trailer tire pressure by inflating or deflating tires based on changing environmental conditions. It also balances tire pressures at every wheel position. It is the first automatic tire inflation system in the trailer industry capable of active tire deflation and balancing, the company says. A new rotary air connection, integrated into the hubcap, is built with high-precision bearings and an engineered polymer seal. The system, which draws from the trailer air supply, continuously checks tire pressure without pressurizing the axle or wheel ends, and employs a pneumatic controller to direct air to tires that fall below a preset pressure level. A signal light illuminates only when attention is required to alert the operator of tire or system leaks. Easy to maintain, TIREMAAX PRO requires no special tools to adjust tire pressure settings and operates on either 12- or 24-v electrical systems. The system may be combined with an array of Hendrickson approved wheel-end configurations on any Hendrickson INTRAAX primary suspension system, VANTRAAX slider suspension system or trailer axle.