Hendrickson
The recently introduced Hendrickson Tire Inflation System (HTIS) option for Intraax and Vantraax trailer suspension systems automatically delivers needed air while maintaining inflation to a specified level,

By sustaining proper tire pressure, the system minimizes air loss through punctures, road hazards and changes in the weather, and in turn improves productivity and mileage, the company says.

With HTIS, air travels from the supply tank through air lines inside the axle to the wheel- ends. A rotary union allows air to flow from a non-rotating axle spindle to the rotating hubcap fitting. Hoses connect from a hubcap tee to the tires. A warning light alerts the operator to system status and maintenance activity, and the system records episodes of low tire pressure for retrieval during servicing. Check valves help prevent tire pressure loss back through the system. Manual fill and pressure checks may be accomplished at the hose end.

An addition to Hendrickson’s Ready-To-Roll options, HTIS connects all tires to the trailer air supply and may be combined with any of an extensive array of wheel-end configurations and spindles available for Intraax and Vantraax.