3-Axle Flatbed Semi Trailer
25–30 Tons | Platform Trailer for General Cargo
Versatile platform trailer engineered for heavy-duty cargo transport. ST52/S355J2+N high-strength steel construction, air suspension, and EBS braking — built to carry anything, anywhere.
Built to Carry.
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Key Features
Every component chosen for structural integrity, cargo security, and long-term operational economy.
Chassis & Structure
The Backbone. Engineered to Last.
Welded I-beam mainframe fabricated from ST52 / S355J2+N high-strength structural steel — engineered to absorb the cyclic fatigue loads of daily heavy haulage without deformation.
High-Strength Steel Grade
ST52 / S355J2+N provides 355 MPa minimum yield strength, enabling a robust yet weight-efficient chassis that maximises payload capacity within legal gross vehicle weight limits.
I-Beam Mainframe Construction
Continuous I-beam longitudinal members welded with precision to tight fabrication tolerances — delivering a flat, true deck surface across the full 13.6 m platform length.
Axles & Suspension
Three Axles. Air Suspension. EBS.
Three-axle configuration distributes gross vehicle weight across six axle positions, keeping individual axle loads within European regulatory limits while maximising legal payload.
Full Air Suspension
Air suspension on all three axles provides superior ride quality for fragile cargo and machinery, reduces dynamic load transfer, and protects road surfaces to comply with European axle load regulations.
Electronic Braking System
EBS with drum brakes on all three axles delivers faster electronic brake response compared to conventional ABS, improving stopping distances and trailer stability under heavy load.
Loading & Cargo Securing
Secure Every Load.
ISO corner twist locks for 20 ft and 40 ft container transport, plus a full ring of heavy-duty recessed lashing rings for strap and chain securing of general cargo and machinery.
ISO Twist Lock Fittings
Standard ISO corner fittings accept twist lock pins for 20 ft and 40 ft ISO containers, enabling direct container depot and port haulage without additional securing equipment.
Steel Headboard & Lashing Rings
Full-width steel headboard protects the tractor cab during emergency braking. Recessed lashing rings are positioned along both sides of the deck for strap, chain, and net securing of general cargo.
Surface Protection & Lighting
Industrial Paint System
Multi-coat industrial paint applied over SA 2.5 blast-prepared steel for maximum adhesion, corrosion resistance, and long service life in all weather conditions.
Customer-Specified Colour
Specify any RAL colour to match your fleet livery. Hot-dip galvanisation available as an upgrade for maximum long-term corrosion protection in harsh environments.
Full LED Lighting Suite
Complete LED lighting system — rear combination lamps, side marker lamps, and licence plate illumination — fully compliant with European road regulations for commercial trailers.
In the Field
Hauling across Europe.
STU flatbed trailers are deployed by general hauliers, building materials suppliers, and container transport operators across Europe.
Global Reach
Trusted across Europe.
Our flatbed trailers serve general hauliers, logistics companies, and building materials operators across Europe and beyond.
Germany
Netherlands
Belgium
France
Poland
Austria
Czech Republic
Turkey
Tech Specs
Dimensions
Platform Length
13,600 mm standard deck length for 13.6 m trailers.
Platform Width
2,480 mm usable deck width within standard European road envelope.
King Pin to Rear Axle
Compliant with European Directive 96/53/EC dimensional regulations.
Deck Height
Approximately 1,250–1,350 mm unladen deck height above ground level.
Load Capacity
Payload
25,000–30,000 kg payload capacity depending on configuration and axle specification.
Max Laden Mass
Maximum technically permissible laden mass as per European road transport regulations.
Chassis
Material
ST52 / S355J2+N high-strength structural steel with 355 MPa minimum yield strength.
Construction
Welded I-beam mainframe with precision-fabricated cross-members and bolster plates.
Surface Protection
Multi-coat industrial paint system over SA 2.5 blast-prepared steel. Galvanisation option available.
Colour
Customer-specified RAL colour for fleet branding and livery matching.
Axles & Suspension
Axle Configuration
3-axle semi-trailer. Fixed rear axles — no steering axle on standard configuration.
Suspension Type
Full air suspension on all three axles for optimal load distribution and cargo protection.
Braking System
EBS (Electronic Braking System) with drum brakes — Wabco or Knorr-Bremse configuration.
Axle Load
Axle load compliant with European Directive 96/53/EC road weight limits.
Cargo Securing
Container Locks
ISO corner twist locks for 20 ft and 40 ft standard container transport.
Lashing Points
Heavy-duty recessed lashing rings positioned along both deck sides for strap and chain securing.
Headboard
Full-width steel headboard for load restraint and tractor cab protection during emergency stops.
Side Rails
Removable steel side boards or stake pockets available as options for bulk cargo containment.
LED Lighting
System
Full LED lighting suite compliant with European commercial trailer regulations.
Components
Rear combination lamps, side marker lamps, front position lamps, and licence plate illumination.
Customisation
Options
Deck length, RAL colour, galvanisation, axle specification, side boards, and additional equipment configurable to order.
Lead Time
Typically 8–14 weeks depending on specification and production schedule. Contact us for current availability.
Material & Engineering FAQs
What is Hardox steel and where is it used in trailers?
Hardox is a wear-resistant steel manufactured by SSAB, specifically designed for applications requiring exceptional abrasion resistance. Grades vary from 400 to 500 HBW.
Technical Details:Typical applications include dump truck bodies and loader buckets. Service life can be 3-5 times longer than conventional steel.
What are the welding requirements for high-strength steels?
High-strength steels require specialized welding procedures to maintain mechanical properties and prevent defects, including preheating for thicknesses > 20mm.
Technical Details:Welding procedures must be qualified according to EN ISO 15614. Heat input typically limited to 0.8-2.5 kJ/mm.
Ready to Order Your Flatbed?
Transparent pricing. No hidden costs. Just a reliable flatbed trailer built exactly to your specifications.