DENTON, Tex. — The new Haulmaax suspension, developed in conjunction with Hendrickson, is now available for Peterbilt’s heavy-duty vocational trucks and tractors.

According to the company it helps provide customers with increased payloads, reduced maintenance costs and longer vehicle life. The new unit is the result of an optimized design as well as reengineered crossmembers.

“Haulmaax can decrease vehicle weight by hundreds of pounds, translating into increased payloads,” says Dan Sobic, Peterbilt assistant general manager. “Additionally, the new suspension is produced with advanced manufacturing methods and high-strength materials for maximum durability and uptime.”

The unit features a “spring geometry” design that couples natural rubber with a high-density thermoset material for bolstered strength, as well as enhanced ride and handling characteristics for vocational applications, such as dump, mixer, refuse, logging, crane and boom, platform lift, and fire and rescue.

Haulmaax is available in 40,000- and 46,000-lb ratings for Peterbilt Models 379, 378, 385, 357, 362 and 320. It is also available for the Peterbilt Model 330 in a Class 8 configuration.