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Truck > Vocational > HAULMAAX®


Heavy-duty Rubber Suspension

Hendrickson’s HAULMAAX® is a premium rubber suspension designed for vocational applications where durability, lightweight and driver comfort are essential. HAULMAAX's innovative low-maintenance design utilizes rubber bolster springs coupled with progressive load springs that provide a superior combination of empty ride quality and loaded stability. The lightweight design offers up to 690 lbs. of weight savings versus competitive vocational rear tandem suspension. In addition, up to 17 inches of diagonal articulation help keep the axle in traction for superb off-road mobility.


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Introducing TRAAX ROD®

TRAAX ROD® torque rods offer up to 5X* the performance life of conventional double shot bushings and similar performance of ball and socket torque rods, with better energy absorption, delivering best in class bushing retention and longer component life for heavy- and severe-duty applications.

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  • Progressive load spring system easily adjusts to the load for an enhanced combination of empty-ride quality and loaded stability.
  • Extra wide spring centers and a unique progressive load spring provide exceptional stability for demanding applications such as refuse, concrete mixers and dump. Unlike other walking-beam suspensions, the innovative HAULMAAX design eliminates fixed center bushing pivot points to reduce wheel hop.
  • Lightweight design is hundreds of pounds lighter than competitive suspensions
  • Solid rubber bolster springs and auxiliary springs optimize empty ride quality with outstanding loaded stability
  • Up to 17 inches of diagonal wheel articulation for superb off-road mobility in harsh environments
  • Improved ride reduces road shock and vibration to the vehicle for longer service life and fewer repairs
  • Center bushings eliminated for reduced maintenance
  • Equalizing beams distribute load equally between both axles in off-road and uneven terrain conditions
  • Optional shock absorbers provide additional driver comfort
  • Bar pin end bushings provide rugged axle connection and extended bushing life
  • Hendrickson genuine torque rods help control lateral forces and optimize resistance to wind up during acceleration and braking