Buyer's guide · Pakenham VIC

Hardox vs Aluminium Tipper Bodies

A neutral comparison from a builder who makes both. Real payload numbers, real wear-life data, and a clear answer to the only question that matters — which one's right for the work you do?

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At a glance

A 6-row side-by-side. The clear winner is highlighted in each row, but in most cases the right answer depends on what you're carting.

  Hardox 500 Aluminium 5083
Body tare (5.5 m body) ~3,300 kg ~1,600 kg Lighter
Payload (4-axle 19m T&D) 36–37 t 39–40 t More
Wear life (abrasive haul) 15–20 yrs Tougher 5–8 yrs in quarry; 10–15 yrs in bulk
Body cost (4-axle dog) From $115,000 Cheaper From ~$145,000
Best for Quarry rock, demolition, mining, abrasive haul Grain, sand, mulch, bulk, fuel-conscious operators
Repair on damage Patch-weld or replace floor sections Specialist alloy welding; harder if cracked
YLZ Hardox 500 tipper trailer — built for quarry, demolition and abrasive haul
Pick Hardox if

You're carting anything that punches the floor

Hardox 500 is the right call any time the load itself causes wear — direct rock loading, sharp demolition spoil, hot bitumen, or any haul where the floor takes a hammering on every drop.

  • Quarry & aggregate. Granite, basalt, road base — Hardox 500 lasts 2–3× longer than aluminium and won't dent or crack on direct loading from a 20-tonne excavator bucket.
  • Demolition & concrete spoil. Re-bar and bricks would chew alloy in a year. Hardox shrugs it off.
  • Mining & civil works. Rock, ore, contaminated soil. Tough materials need a tough body.
  • You'd rather replace once. Hardox body life often outlasts the truck it's mounted on. Many YLZ Hardox bodies get transferred to a second chassis.
YLZ marine-grade aluminium tipper trailer — lightweight bulk-haul body
Pick aluminium if

Payload per load is your bottom line

Marine-grade 5083 aluminium gives you 1–1.5 tonnes more legal payload per load on a rigid truck, and roughly 3 tonnes more on a typical truck-and-dog combo. For high-volume bulk haul, that's where the money is.

  • Grain, sand, mulch. Non-abrasive loads where the wear life of Hardox is wasted — you'll get 10–15 years out of an alloy body in this work.
  • High-volume bulk. If you're doing 15+ loads a week, the extra 3 t per trip stacks up fast. Often pays back the higher body cost inside 18 months.
  • Fuel & tare-conscious. Lighter tare = better fuel economy empty, and more headroom under HML / PBS mass schemes.
  • Brighter finish. Aluminium polishes up clean — some operators just prefer the look on the highway.

Real payload numbers

Straight from the YLZ Body Payload Reference (May 2026). These are typical figures for standard YLZ builds with air suspension, Binotto hoist and electric tarp. Your build may vary — we'll confirm exact weighbridge numbers before delivery.

Rigid truck — 5.5 m body on a 3-axle 6x4 (26 t GVM HML)

Same chassis, same hoist, same tarp — just the body material changes.

Hardox body
~3,300 kg
Body tare
Aluminium body
~1,600 kg
Body tare (1.7 t lighter)
Hardox payload
13.5 – 14.5 t
Aluminium payload
15.0 – 16.0 t

Truck & dog combo — 4-axle 19m T&D (57.5 t GCM, PBS L1)

Whole combo: prime mover + body + dog trailer. Aluminium adds roughly 3 tonnes per load.

Hardox combo tare
~21 t
Prime mover + body + trailer
Aluminium combo tare
~18 t
Prime mover + body + trailer
Hardox payload
36 – 37 t
Aluminium payload
39 – 40 t
~3 t more per load

Cost over the life

Cheaper upfront isn't always cheaper overall. The thing to compare is cost per tonne moved over the life of the truck — usually 8–10 years.

Over 8 years, 4-axle 19m T&D, 15 loads/week, 48 weeks/year Hardox 500 Aluminium 5083
Body cost $115,000 $145,000
Payload per load 36.5 t 39.5 t
Total tonnes moved (8 yrs) ~210,240 t ~227,520 t +17,280 t
Indicative maintenance (8 yrs) ~$48,000 Lower ~$72,000
Total body-related cost $163,000 $217,000

For abrasive haul (quarry, demolition) the maintenance figures flip — aluminium floors and walls don't last 8 years under direct rock loading, so you're either replacing the body or relining it before the truck is sold. For non-abrasive haul (grain, sand, mulch) the maintenance gap is smaller and the extra payload of aluminium typically wins.

Common questions

Is Hardox always heavier than aluminium?

Yes — on a like-for-like body size, Hardox 500 typically runs 1.0–1.5 tonnes heavier than equivalent marine-grade aluminium. The heavier tare means lower payload per load, but the trade-off is wear life: Hardox handles direct rock loading and lasts 2–3× longer than aluminium in abrasive haul.

Which lasts longer — Hardox or aluminium?

Hardox lasts substantially longer in abrasive applications. Hardox 500 offers roughly 30–50% longer service life than Hardox 450, and up to 85–100% longer service life than generic AR steel. In aluminium, the floor and lower walls wear faster — for grain or mulch the wear is minimal, but for quarry rock you'd typically be replacing or relining an aluminium body 2–3 times for every one Hardox body.

Does aluminium save fuel?

Yes. The 1.0–1.5 t weight saving translates to slightly better fuel economy when running empty, plus you can legally carry 1.0–1.5 t more payload per trip. Over the life of a high-volume bulk operator, the extra payload (more tonnes moved per litre of fuel) is the bigger gain.

What's better for a truck and dog combo — Hardox or aluminium?

Depends on what you're carting. Quarry rock, demolition spoil, or any abrasive load: Hardox, every time. Sand, gravel, mulch, grain, or general bulk haul: aluminium gives you ~3 tonnes more payload per load (e.g. 39–40 t alloy vs 36–37 t Hardox on a 4-axle 19m T&D), which usually pays for the higher body cost within 12–18 months on a busy combo.

Are aluminium bodies cheaper than Hardox?

No — aluminium bodies are usually more expensive to build than Hardox. As a rough guide, a YLZ 4-axle Hardox dog trailer starts around $115,000, while a 5-axle aluminium dog trailer starts around $147,000. Aluminium is dearer per kilogram and harder to weld correctly, but the lighter tare means more payload, which is where the real return comes from.

Still not sure? Talk to the workshop.

Tell us what you're carting, how many loads a week and what truck you're spec'ing — we'll come back with a clear recommendation and an indicative quote. No pressure.

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