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HAULMAAX^® EX

Next Generation Heavy-Duty Rubber Suspension

The HAULMAAX EX 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.

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 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 optimise 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
Equalising 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 optimise resistance to wind up during acceleration and braking

Specifications

Model	HMX EX 400	HMX EX 460	HMX EX 520
Installed Weight ¹(kg)	380	384	427⁸
Suspension Rating (tons)	18	21	23.5
GVW Approval ²(tons)	37.6	40	42.1
GCW Approval (tons)	75.6	86.1	11.1
Job-Site Travel Rating ³(tons)	27.2	31.7	34
Diagonal Articulation ⁴(mm)	432	432	432
Lift Axles	Approved	Approved	Approved
Ride Heights⁵(mm)	241-336.5	241-336.5	241-336.5
Axle Spacing ⁶(mm)	1,320 and 1,370	1,320 and 1,800	1,320 and 1,370 and 1,500
Shock Absorbers ⁷	Tractors, Logging	Tractors, Logging	Tractors, Logging

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

Literature

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HAULMAAX^® EX

Next Generation Heavy-Duty Rubber Suspension

Features and Benefits

Specifications

Literature

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