Hendrickson Truck Commercial Vehicle Systems recently partnered with International Trucks to launch a new variant of Primaax Ex, a severe-duty vocational rear air suspension system.
The new options for the suspension include a 12-in. ride height, as well as a 52,000-lb. capacity with air disc brake clearance as a part of the chassis enhancements for International’s HV truck model, the company reported.
This new variant of the Primaax Ex suspension is designed specifically for the rigorous demands of the vocational and severe-service segments, including construction, refuse, mixer, logging, and heavy-haul applications. The new 12-in. ride height variant contributes to better weight distribution, improving stability and control when hauling heavy loads, Hendrickson said.
Primaax Ex minimizes suspension-induced driveline vibration and controls suspension windup and corresponding frame rise. Premium heavy-duty rubber bushings require no lubrication and are performance-tested for longer service life. The taller Primaax Ex ride height option will assist fleets in complying with applicable Canadian regulations related to vehicle dimensions and load capacity, as well as applications that require a slightly taller than standard ride height such as heavy-duty towing and recovery.
The 52,000-lb. air disc brake configuration allows heavy-haul customers to specify air disc brakes on HV trucks that require more repeatable stopping distance.
“Primaax Ex has grown tremendously in popularity over the years and has become widely accepted by fleets throughout the industry as their preferred 100% off-highway-approved vocational air suspension for multiple severe-duty applications,” Sean Whitfield, Hendrickson director of marketing, said in a news release. “We are excited to launch the new 12-in. ride height, as well as the 52,000-lb. air disc brake compatible variants offered at International to expand the availability of Primaax Ex across the full breadth of their vocational-model lineup to bring the tremendous advantages of Primaax Ex to more International customers.”
Primaax Ex offers a full range of suspension scalability, from 23,000-lb. single axle configurations up to 78,000-lb. tridem setup configurations.