HAULMAAX EX

Heavy-duty rear rubber suspension system

HAULMAAX EX - Heavy-duty Rear Rubber Suspension System

Suspension geometry is optimised to provide better site rating, increased capacity ranges and improved durability. Utilising industry leading validation techniques, high strength materials, and advanced manufacturing methods, HAULMAAX™ EX meets the increasing rigorous application demands by delivering the reliability and quality you’ve come to expect from Hendrickson, the leader in suspension technology.

HAULMAAX™ EX features a unique spring design that balances empty-ride quality and loaded stability. Angled bolster springs and a unique progressive load spring provide exceptional stability for demanding applications such as refuse, concrete mixers and dump.

HAULMAAX EX - Heavy-duty Rear Rubber Suspension System

Features and Benefits

  • Progressive load spring system easily adjusts to the load for an enhanced combination of empty-ride quality and loaded stability.
  • Extra wide spring centres and a unique progressive load spring provide exceptional stability for demanding applications such as refuse, concrete mixers and tipper. Unlike other walking-beam suspensions, the innovative HAULMAAX design eliminates fixed centre bush pivot points to reduce wheel hop.
  • Lightweight design is many kilograms lighter than competitive suspensions
  • Solid rubber bolster springs and progressive load springs optimise empty ride quality with outstanding loaded stability
  • Up to 430 mm 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
  • Centre bushes eliminated for reduced maintenance
  • Equalising beams distribute load equally between both axles in off-road and uneven terrain conditions
  • Shock absorbers provide additional driver comfort
  • Bar pin end bushes provide rugged axle connection and extended bush life
  • Hendrickson genuine torque rods help control lateral forces and optimise resistance to wind up during acceleration and braking

Specifications

Model HMX EX 400 HMX EX 460 HMX EX 520
Installed Weight (kg) 393 397 4406
Suspension Rating (kg) 18,000 21,000 23,500
GCM Approval (kg) 72,500 86,000 111,000
Job-Site Travel Rating (kg) 27,000 31,000 34,000
Diagonal Articulation 3(mm) 430 430 430
Lift Axles Approved Approved Approved
Ride Heights(mm) 203 - 337 203 - 470 241 - 337
Axle Spacing (mm) 1321, 1372 & 1524 1321, 1372, 1524 & 1842 1321, 1372 & 1524


 

Hendrickson approves the use of HAULMAAX EX in the following vocational truck applications: dump, concrete mixer, refuse, logging, crane / boom, platform and fire / rescue.

1. Installed weight includes complete suspension, torque rods, axle brackets, shock absorbers and frame brackets.
2. Job-site travel rating — operators using vehicles equipped with liftable pusher or tag axles must not exceed published ratings. Job-site ratings are limited to no more than five percent of vehicle operation at speeds not to exceed eight kmh. Liftable pusher or tag axles should only be raised (or unloaded) to improve vehicle manoeuvrability in job-site applications or when vehicle is empty. Job-site travel ratings are consistent with published axle manufacturer’s limitations. Axle and suspension job-site travel specifications must not be exceeded.
3. Suspension articulation may exceed vehicle’s capability and may be limited by vehicle manufacturer; vehicle manufacturer installed axle stops may restrict suspension’s articulation.
4. HAULMAAX EX ride height measurements are taken from the centerline of the axle to the bottom of the truck frame.
5. Contact Hendrickson for availability of beam lengths.
6. 52K installed weight includes complete suspension, double rebound straps, longitudinal torque rods, Hendrickson TRAAX ROD™ transverse torque rods, axle brackets, shock absorbers and frame brackets.

 

Literature

File Name Rev. Date Size