
🔥 A Turning Point in Transport Safety
On 24 October 2022, a tanker carrying ammonium nitrate emulsion caught fire near Cosmo Newbery, WA. The source? A tyre and brake fire on the rear axle. Despite a 2-hour delay before ignition reached the tank, the result was catastrophic: a high-explosive detonation flattened the trailer and scattered debris over a kilometre.
The investigation concluded that the fire could have been contained — and may have been avoided — with better fire risk isolation at the wheel end. That event directly shaped Western Australia’s Dangerous Goods regulatory amendments, which came into effect on 18 April 2025.
🔗 WA Dangerous Goods Safety Regulations Amendment 2024
📊 Real Incidents, Real Consequences
Recent events across Australia further highlight the urgent need for better fire containment around wheels and brakes — especially in vehicles transporting dangerous goods:
🚛 1. Road Train Explosion – Ammonium Nitrate (Sept 2023)
A road train carrying 34 tonnes of ammonium nitrate emulsion exploded after a wheel-end brake fire ignited the load. The explosion formed a 17×9×1.1 m crater, flinging debris hundreds of metres [AMSJ, Sept 2023].
🔍 Investigators traced the cause to brake drag from air pressure loss, and recommended:
- Wheel and brake temperature/pressure sensors
- Automatic wheel-end suppression systems
Source: Australasian Mine Safety Journal – Massive explosion after ammonium nitrate truck fire
🏗 2. NSW Mine Tyre Fires – Safety Warning (Nov 2023)
In November 2023, the NSW Resources Regulator issued Safety Bulletin SB23‑09, following several serious tyre fire incidents on heavy mining machinery. Crews were observed approaching dangerously close to burning tyres, unaware of the risk of delayed explosions caused by internal pyrolysis.
📢 The safety bulletin now mandates:
- Exclusion zones of at least 300 m
- Recognition that tyres can explode up to 24 hours later after overheating
Source: NSW Resources Regulator – Safety Bulletin SB23-09 (PDF)
📉 3. Trailer Fire Causes: Industry-Wide Data
A 2019 claims analysis by TT Club — a leading global insurer and risk authority for transport and logistics — revealed that ~65% of truck/trailer fires originate at the wheels or brakes.
🔥 Common causes include:
- Overheated brakes
- Dragging brake systems
- Hydraulic leaks
- Wheel bearing failures
“While devastating fires on trucks and trailers can start in several ways, some 65% are caused by issues related to the wheel and brake assembly area.”
— TT Club, Truck and trailer fires – what our data tells us (2019)
Source: TT Club – Truck and Trailer Fires: What Our Data Tells Us

🛡 Stainless Guards: Passive Safety That Supports Active Suppression
RHINO stainless steel guards align strongly with the intent of WA’s 2025 reforms:
Prevent escalation before it starts.
RHINO stainless guards can:
- Resist heat transfer from tyre/brake failure
- Limit flame spread into sensitive trailer areas
- Contain ignition points to the wheel well
- Support the performance of water-based fire suppression
They provide a passive safety layer around one of the most ignition-prone zones on any dangerous goods vehicle: the wheel end.
This approach aligns with:
- WA’s new requirements for wheel/brake fire containment
- The Code of Practice for Ammonium Nitrate Explosion Risk Goods
- Broader safety intent under the ADG Code 7.9, AS 5026, and the Consultation RIS for upcoming national reforms
Together, these measures highlight a clear trend:
Regulators expect both active suppression and passive containment to reduce DG fire risks.
📍 What the WA 2025 Reforms Require
WA’s post-incident regulation changes mandate:
- 🔥 Engine-off capable fire-fighting equipment
- 💦 Fire suppression systems targeted at wheel and brake assemblies
- 🧯 Water-based suppression, where applicable
- 🎓 Driver training in using that equipment
- 🌡 Temperature monitoring for tyre assemblies
📘 WorkSafe WA: Code of Practice – Minimising the risk of tyre fires when transporting ammonium nitrate explosion risk goods (Dec 2024)
📕 Australian Code for the Transport of Dangerous Goods – Edition 7.9
📙 Draft Code for the Land Transport of Dangerous Goods – Consultation RIS
While ADG 7.9 remains the current national standard, the Consultation RIS signals likely future changes — including enhanced fire risk controls — across all states and territories.
🌏 Built for Australia’s Harshest Conditions
Across Australia’s most demanding freight environments — from remote mining roads to coastal chemical corridors — RHINO stainless guards are engineered to perform in:
- Extreme heat zones — RHINO’s 1.2 mm 304BA stainless withstood intermittent exposure up to ~870 °C and continuous service up to ~925 °C, per Atlas Steels and Outokumpu datasheets — far beyond typical tyre/brake fire temperatures
- Corrosive conditions like salt spray and chemical splash
- Heavy-duty haulage with constant vibration and impact
Their rugged construction supports compliance goals and safety outcomes — especially as fire suppression expectations evolve nationwide.
This aligns with principles already embedded in key Australian fire protection standards.
🔗 Resources Safety & Health Queensland – Ammonium Nitrate Emulsion Tanker Explosion – Safety Alert No. 117 (Oct 2024)
🔗 National Transport Commission: Australian Dangerous Goods Code Edition 7.9
🔎 How AS 5026 Strengthens Fire Safety at the Wheel End
AS 5026 is the Australian Standard for fire protection of mobile and transportable equipment. It’s widely applied in mining, civil construction, and heavy vehicle environments.
It calls for measures that:
- Reduce ignition risk
- Enable rapid suppression
- Protect personnel and equipment in high-heat failure scenarios
RHINO stainless guards don’t replace active suppression systems — but they complement them with passive containment around one of the most fire-prone zones: the wheel end.
✅ Prepare Your Fleet for Australia’s Evolving Fire Safety Standards
Whether you’re operating in WA under new dangerous goods legislation, or preparing for the national rollout of enhanced fire risk controls, RHINO stainless guards can help your fleet stay ready.
They offer durable, passive protection that supports:
- WA’s 2025 fire safety reforms
- Australian Dangerous Goods Code (Edition 7.9)
- Recommendations from recent investigations and national regulators
- The intent of AS 5026 and the Consultation RIS for future code updates
📩 Want to prepare your fleet for current and future safety standards?
👉 Request a Quote from RHINO
🛡 Explore our full stainless steel mudguard range:
👉 RHINO Stainless Guard Range



