Mack‘s Twin-Y Air Suspension is the first to use high-strength steel in a unique Y-shaped design. The strong, yet lightweight design greatly reduces suspension windup and significantly improves tyre traction and braking control.

Why Twin-Y?
Using two stamped high-strength steel Y-shaped blades at each wheel end, the the Twin-Y provides improved tyre traction and braking control, a more stable ride, better handling and gains in fuel efficiency. Who doesn’t want that? What‘s more, the greater flexibility of the steel, reduced torque reactivity and lighter weight design means that the axles last longer and extend tyre life as well.

An award-winning design
Based on what our customers told us they wanted, the Mack Twin-Y impressed others as well, winning the 2013 Swedish Steel Prize, an annual award recognizing the world‘s most innovative design utilizing high-strength steel.

Better roll control, more comfort
The Twin Y‘s design means the load on the suspension is entirely on the air ride and not on the pivot bushing. This enables the bushings in the upper and lower axle seats to provide greater roll control and deliver easier handling and a more comfortable ride.