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By John Millar
Posted about 1 month ago
Blade Panel Bodywork: The Proven Standard in Box Vans
Since its introduction in 2008, Don-Bur’s proprietary Blade bodywork system has become the benchmark for box van durability and performance — now used on more than 90% of all box van bodywork manufactured by the company.
The industry’s long-standing default — GRP-faced plywood — may appear robust, but once moisture penetrates the GRP skin, the plywood core can quickly delaminate, swell and rot. Blade was developed as a direct response to this issue: a precision-engineered composite that resists damage, moisture and corrosion while maintaining its integrity year after year.
Every panel has a purpose, and Blade’s purpose is simple — to deliver uncompromising quality and dependability in one of the most demanding environments on the road.
A Composite Built for a Purpose
A Composite Built for a Purpose
Each Blade panel is a precision-engineered composite of galvanised steel skins bonded to an HDPE foam core, finished with a polyester baked-on paint coating that provides an ideal surface for body colour finishes. Beneath the paint lies a rust-inhibiting primer and hot-dip zinc layer applied to 80,000-psi yield full-hard steel — forming a robust barrier against corrosion and external wear.
The result is a panel that is slim, strong and extremely impact resistant. Unlike GRP-faced plywood, Blade panels will not absorb moisture, delaminate or deteriorate — even under long-term stress, exposure or vibration. Fleets have proven this over more than a decade of continuous service, with Blade-bodied trailers maintaining their appearance and structural integrity far beyond typical fleet life cycles.
The Key to Its Success
The Key to Its Success
- Extreme durability: Steel skins and a fully bonded core resist impact, flex and vibration damage in high-usage environments.
- Corrosion resistance: Hot-dip zinc coatings and sealed bonding prevent rust and moisture ingress.
- Service longevity: Panels retain rigidity and appearance over extended operational life, reducing downtime and repair frequency.
- Recyclable construction: Both steel and HDPE can be fully reprocessed, supporting circular-economy principles.
- Professional appearance: Smooth, paint-ready surface finish provides consistent quality across the fleet.
Increased Pallet Capacity on Lifting Deck Trailers
Blade’s design precision delivers practical engineering advantages — particularly in lifting deck trailers, where internal width is at a premium. The panel’s reduced 7.5 mm thickness allows Don-Bur engineers to widen the upper deck cradle, achieving a full 2.44 m clear width between the upper deck sides. This creates ample clearance for two standard UK pallets positioned with their longest sides across the trailer width.
The result is a true 52-pallet capacity — double that of an equivalent single-deck trailer — achieved without compromising durability or service life. It’s a perfect example of how engineering refinement translates directly into operational efficiency.
ESG and Sustainability Benefits
ESG and Sustainability Benefits
Durability isn’t just a practical advantage — it’s an environmental one. Blade’s exceptional service life reduces the need for replacements, cutting material consumption and embodied emissions. At end-of-life, both the steel and HDPE components can be recycled, ensuring the system supports modern sustainability goals.
- Lower lifecycle impact: Extended durability reduces replacement frequency and associated emissions.
- Recyclable materials: All core components can be reprocessed within standard recycling streams.
- Reduced waste: Long-term integrity eliminates early disposal caused by delamination or rot.
Repairs In Practice
The images attached show localised impact damage to the upper offside corner of a Blade-bodied trailer. In this case, only a single panel section requires replacement — highlighting the practicality and maintainability of the system. With standard GRP-faced plywood, repairing this sort of damage would typically require removing and replacing the entire side panel — a large, labour-intensive task. By contrast, with Blade only the damaged section needs replacing, saving both time and cost. However, while repairability is a welcome benefit, the real strength of Blade lies in its resilience: impacts like this are rare relative to the total service life of the bodywork.
Today, Blade remains Don-Bur’s benchmark body panel — proven, reliable, and aligned with the quality, environmental and operational goals of the modern transport industry.