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Hendrickson suspensions available on Western Star 49X

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David Sickels is the Associate Editor of Tire Review and Fleet Equipment magazines. He has a history of working in the media, marketing and automotive industries in both print and online.

Hendrickson Truck Commercial Vehicle Systems has partnered with Western Star Trucks to offer a premium rear suspension portfolio as a part of the chassis enhancements of the Western Star 49X. The suspension offerings include the introduction of Haulmaax EX and the expansion of Ultimaax and Primaax EX on the new Western Star truck.

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“Customers today expect more out of their vocational suspensions and Haulmaax EX exceeds those expectations by expanding on the capabilities of the current Haulmaax design with up to a 70,000-lb. site rating for the 46,000-lb. capacity suspension. Haulmaax EX is extremely rugged, supporting the most demanding vocational applications and offering capacities of 40,000 lbs., 46,000 lbs. and now 52,000 lbs.” says Ashley Dudding, director of engineering for Hendrickson Truck Commercial Vehicle Systems. “Hendrickson utilized our industry-leading analysis and validation techniques to ensure Haulmaax EX would meet these rigorous demands, minimize maintenance requirements and deliver the lightest weight vocational suspension on the market.”

In addition to Haulmaax EX, the 49X will also offer Hendrickson’s Ultimaax severe-duty rubber suspension for more extreme applications as well as Primaax EX, Hendrickson’s severe-duty vocational air suspension for applications requiring the softer ride of an air suspension.

Ultimaax is available in capacities of 52,000, 60,000 and 70,000 lbs. The integration of Hendrickson’s walking (equalizing) beam technology, with its patented progressive rate spring, provides a balance of loaded stability and unloaded ride quality, the company says.

Primaax EX is designed specifically for vocational, severe-service, and heavy-haul applications. The system features a structural design optimized for exceptional stability, handling and ride, the company says. Initially, the new vehicle will feature Primaax EX in capacities of 46,000 and 52,000 lbs. with expanded capacities coming soon.

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