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ULTIMAAX^®

Advanced Severe-Duty Rubber Suspension

ULTIMAAX® is an advanced severe-duty rear rubber suspension designed to balance outstanding durability, empty ride quality, loaded stability and mobility. Through its unique design, the system offers premium ride quality in both empty and loaded conditions, with increasing stability as the load increases.

Features and Benefits

Equalising beam — Formed and robotically welded to provide a narrow profile for weight savings. Distributes load equally between axles to improve maneuverability, stability and handling. Increases ground clearance with flat bottom design. Lowers the centre of gravity to increase stability.
Saddle — Triangular geometry provides structure and durability. Weight efficient design helps to increase payload, while offering a considerable weight savings versus competitive suspensions.
Frame hangers — Optimised design to balance durability and weight savings. Fabricated to offer flexibility with multiple truck configurations.
Rubber shear springs — Primary springs in unloaded condition, providing superb ride quality. React to longitudinal loads during braking and accelerating for minimal displacement.
Progressive load springs — Designed to balance empty ride quality and loaded stability. Stiffness of progressive load spring increases as load increases, providing a unique balance of empty ride quality and loaded stability.
Longitudinal torque rods — Engineered to optimize resistance to axle wind-up during acceleration and braking.
Transverse torque rods — Heavy‑duty transverse rods ensure maximum lateral axle control and straight line suspension stability.

Specifications

Suspension Rating	21,000 kg	23,500 kg	27,000 kg
Suspension Weight	535 kg	543 kg	638 kg
Job Site Travel Rating¹	32,000 kg	34,000 kg	36,500 kg
Diagonal Articulation²	445 mm	445 mm	445 mm
Ride Height	241 - 330 mm	241 - 330 mm	241 - 330 mm
Axle Spacing³	1321, 1372, 1422, 1524 mm	1321, 1372, 1422, 1524 mm	1321, 1372, 1422, 1524 mm

Hendrickson approves the use of ULTIMAAX in intended crane applications. All such applications must comply with applicable Hendrickson specifications and must also be approved by the respective vehicle manufacturer with the vehicle in its original, as-built configuration. Contact Hendrickson and the respective vehicle manufacturer for approval of additional applications.

1. Axle and suspension job-site travel specifications must not be exceeded. Contact Hendrickson for further details.

2. Suspension articulation may exceed vehicle’s capability and may be limited by vehicle manufacturer; vehicle manufacturer installed axle stops may restrict suspension’s articulation.

3. Contact Hendrickson for availability of additional beam lengths.

Actual product performance may vary depending upon vehicle configuration, operation, service and other factors.

Literature

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Need Help? Call +61 3 8792 3600 or Email customerservice@hendrickson.com.au

ULTIMAAX^®

Advanced Severe-Duty Rubber Suspension

Features and Benefits

Specifications

Literature

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