Hendrickson says it’s trimmed 90 more pounds from its earlier lift axle version, with production of the refined Paralift PST launched last month. Fitting it with a new axle, the company says it retained the 20,000-lb, steerable lift axle’s durability while improving driveline clearance and wheel cut.
The PST comes with a Westport axle and D22 spindle resulting in a 90-lb weight reduction. Models are available for a wide variety of class 8 truck chassis.
To enhance driveline clearance and extend wheel cut to 25 degrees, the axle seats were re-designed and the stabilizers moved inside the tie rod and connected to the axle brackets.
PST retains the features of previous models including adjustability of frame width and ride height, allowing fleets, aftermarket installers and body builders to apply one unit to meet a wide variety of truck configurations.
The parallelogram design maintains proper wheel tracking and ensures lift plates remain parallel for longer air spring life. Its trailing-arm beams feature an efficient single-paddle, z-beam configuration.
The new PST delivers 12 in. of total travel with 9 in. of lift in ride heights from 9.5 to 13.5 in., all in a 28-in. package space. Zero-torsion, trailing-arm bushings help eliminate bushing wind-up and allow for the two lift-spring configuration.
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