Hendrickson Truck Commercial Vehicle Systems recently announced further proliferation of Primaax EX heavy-duty vocational rear air suspension at numerous OEMs.
Primaax EX was designed for the demands of vocational, severe, and heavy-haul applications. The system can be packaged with both drum and disc brakes, and is approved for 100% off-road usage to help conquer challenging terrains.
This system incorporates durable structural beams that integrate the cross-beam attachment points for greater reliability, resulting in a maintenance-free connection that forms a rigid torsion system for improved stability and control for both off-road and heavy-haul applications.
In early 2011, Primaax EX will be available in 40,000- and 46,000-lb disc brake configurations on Peterbilt Motors Company's 320 low-cab-forward model.
Kenworth Truck Company and Volvo Trucks North America recently launched new disc brake options for Primaax EX.
Kenworth published databook sales codes for Primaax EX 46,000- tandem and 69,000-lb tridem disc brake configurations. New Primaax EX disc brake options are available on a variety of chassis including the C500, T800, and W900 models. These new configurations are in addition to the drum brake options already available in 46,000-, 52,000-, and 69,000-lb capacities at Kenworth.
The company also is releasing a single-axle version of Primaax EX, which will be available on Kenworth T270 and T370 4x4 chassis models. The suspension will be available in single-axle ratings of 23,000 and 26,000 lbs.
Disc brake configurations of Primaax EX are also available on Volvo trucks. New options can be spec'd in tandem and tridem configurations on VNL and VHD chassis models.
Primaax EX includes optional arched longitudinal torque rods that provide clearance necessary for disc brakes. Hendrickson has plans to launch disc brake configurations of Primaax EX at additional OEMs later this year to complement current drum brake offerings.
At International, the WorkStar chassis will now be available with Primaax EX in 69,000-lb-capacity tridem configurations. Primaax EX has been available at International in 23,000-lb single-axle and 46,000-lb tandem-axle configurations on the WorkStar and PayStar truck models, but the availability of the 69,000-lb capacity marks the launch of the first Hendrickson tridem configuration on International trucks.
The Primaax EX optimized suspension geometry delivers more than twice the roll stiffness of other vocational rear air suspensions and greater control during lane changes, highway ramp operation, and tight or twisting road maneuvers.
Delivering up to 12.5 inches of diagonal articulation, Primaax EX helps improve traction and provide greater off-road mobility, while up to 10.75 inches of ground clearance enhance maneuverability over rough terrain.
For more information, visit www.hendrickson-intl.com.