Axle Control raises and lowers self-steering trailer axles.

Press Release Summary:

Automatic Lift Axle Control electronically triggers axle-lift mechanism when trailer travels 3 ft rearward, and starts axle dropping after forward movement of 80 ft. Wheel-end sensor reads ABS tone ring triggering. Control is compatible with any lift mechanism equipped with electro-pneumatic control and eliminates need for controls in cab. Kit includes direction sensor, electronic control unit, and wiring harness and is available for company's trailer suspension systems.

Original Press Release:

Raise and Lower Self-Steering Trailer Axles Automatically with New Lift Axle Control

CANTON, OHIO - Eliminate the operator's role in raising and lowering self-steering trailer lift axles with Hendrickson's new Automatic Lift Axle Control. Available as an option on new Hendrickson trailer suspension systems or through the aftermarket network for retrofitting, the automatic control electronically triggers the axle lift mechanism when the trailer travels rearward and starts the axle dropping with forward movement. Compatible with any lift mechanism equipped with an electro-pneumatic control, Hendrickson's Automatic Lift Axle Control answers new Canadian control requirements for liftable / steerable axles. The unit operates without driver intervention and without controls in the cab - fully automating the control of the lift axle. A wheel-end sensor reads the ABS tone ring triggering after three feet of rearward travel to activate the lift mechanism. Eighty feet of forward travel automatically keys the lowering of the axle. Hendrickson offers a wide variety of liftable INTRAAX® suspension systems; lift mechanisms including the lightweight, compact UNDER BEAM LIFT(TM) (UBL(TM)), and a complete line of electric controls. The Automatic Lift Axle Control Kit (EKAD0001) includes direction sensor, electronic control unit and wiring harness. A kit incorporating a back-up alarm is also available. A stand-alone trailer system, the easy-to-install control requires no communcation with the tractor and features a compact, modular design. For additional information about the Automatic Lift Axle Control, contact Hendrickson International, Trailer Suspension Systems, Canton, Ohio, toll free at 866-RIDEAIR (743-3247). Hendrickson International is one of the largest global suppliers of truck and tractor suspensions; trailer suspensions; lift, trailer and steer axles; springs; bumpers, and stamped components to the commercial transportation industry. Headquartered in Woodridge, Ill., Hendrickson has been meeting the needs of the transportation industry for 90 years. Visit the Hendrickson web site at

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