80 Ton 4 Axle Side Wall Semi Trailer

The RoadKing 80 Ton 4 Axle Side Wall Semi Trailer (also known as a drop side or fence trailer) is a high-capacity logistics solution engineered for heavy-duty bulk freight and versatile general cargo transport. Designed with an advanced 4-axle layout, this trailer distributes gross vehicle weight across a broader ground footprint, significantly reducing individual axle stress, minimizing tire wear, and satisfying strict axle-load regulations across challenging long-haul routes.

Built on a robot-welded, high-tensile Q345 / T700 steel chassis, this trailer features a reinforced main beam structure and heavy-duty, fold-down (or removable) side panels. This combination provides robust side-load containment during transit while enabling fast, multi-angle loading and unloading via forklifts or cranes. With a massive payload capacity of up to 80 tons, it excels at transporting steel products, bagged cement, agricultural yield, timber, mining supplies, and palletized goods.

Proven across harsh operating conditions in Africa, Southeast Asia, Central Asia, the Middle East, and South America, RoadKing’s 4-axle side wall semi-trailers combine maximum structural resilience with a low Total Cost of Ownership (TCO). Browse our complete line of cargo trailers in the Side Wall Semi Trailer to find the ideal spec for your logistics fleet.

Key Technical Advantages

• Heavy-Duty 80-Ton Payload Rating

  Constructed with high-strength Q345/T700 steel main I-beams and reinforced crossmembers, preventing deck sagging or chassis deformation under concentrated heavy loads.

• 4-Axle Load Balance & High Stability

  The 4-axle arrangement provides superior weight distribution and lateral stability, making high-tonnage transit safer on unpaved or mountainous terrain.

• Foldable & Removable Side Wall Panels

  Heavy-duty steel drop sides can be lowered or completely detached, transforming the unit into a open flatbed trailer for quick side-loading of oversized machinery, steel coils, or long timber.

• Multi-Modal Cargo Securing

  Equipped with heavy-duty perimeter stake pockets, internal lashing rings, and optional ISO twist locks, allowing effortless transition between bulk goods, timber, and 20ft/40ft containers.

• Lower Operating Costs & Long Service Life

  Fitted with premium wear-resistant tires, 28-ton two-speed landing legs, and certified BPW/FUWA axles to ensure maximum fleet uptime and lower maintenance overhead.

Technical Specifications (Standard Reference)

ITEM	SPECIFICATION
Axles	4 Axles, 13T FUWA/BPW (Optional)
Overall Dimension	13000 × 2550 mm (Customizable)
Payload Capacity	40–100 Tons (80 Ton Standard)
Main Beam Material	Q345 / T700 High-Strength Steel
Main Beam Height	500 mm
Upper Plate Thickness	18 mm
Middle Plate Thickness	12 mm
Lower Plate Thickness	20 mm
Side Wall Height	600–1700 mm (Customizable)
Floor Plate	3 mm Checkered Steel Plate
Suspension	Mechanical Suspension / Air Suspension (Optional)
Tires	12R22.5, 16 Pieces
Rims	9.0 × 22.5 Steel or Aluminum
Leaf Spring	90 × 16 mm × 10 Pieces
King Pin	2" / 3.5" JOST or Equivalent
Landing Gear	28T Two-Speed JOST or Equivalent
Brake System	Dual-Line Air Brake System, ABS Optional
Electrical System	24V LED Lighting System
Twist Locks	Optional
Gooseneck	Optional
Painting	Powder Coating
Color	Customizable

Primary Applications & Industry Solutions

• Steel & Metallurgical Freight: Carrying steel bars, wire rods, heavy steel coils, and structural beams securely within side walls.

• Agricultural & Bagged Goods: Efficient transport of grain, fertilizer, sugar, and bagged cement protected from side-spill.

• Building & Construction Materials: Transporting precast concrete, bricks, tiles, and masonry supplies to job sites.

• Timber, Logs & Pipes: Long-haul hauling of raw logs, lumber, and steel/PVC pipelines.

• Mining & Heavy Industrial Equipment: Transporting heavy machinery, generator sets, and mining components.

Customization & Factory-Direct Support

RoadKing Vehicle offers end-to-end OEM/ODM manufacturing tailored to your local road regulations and operational demands:

• Custom Chassis & Wall Dimensions (Length, Width, and Side Panel Heights)

• Axle & Suspension Packages (FUWA, BPW, SAF | Mechanical, Bogie, or Air Suspension)

• Undercarriage Add-ons (Dual Spare Tire Carriers, Heavy-Duty Lockable Toolboxes, Custom Fuel Tanks)

• Surface Protection (Shot-blasting, anti-corrosion primer, and heavy-duty polyurethane or powder coating in custom colors)

Need a specialized 4-axle layout for open heavy-haul cargo? View our 4 Axle Flatbed Semi Trailer. For oversized construction equipment, check out our Low Bed Semi Trailer.

Frequently Asked Questions (FAQ)

Q1: What is the standard payload capacity of this 4-axle side wall trailer?

The standard rating is 80 tons. However, we can engineer custom reinforced chassis configurations supporting payloads from 60 tons up to 100 tons depending on your regional road regulations and transport requirements.

Q2: Can the side wall panels be completely removed?

Yes. The steel side walls are designed with heavy-duty drop-down hinges and quick-release stakes. You can easily fold them down for side-loading or remove them entirely to convert the trailer into a standard flatbed trailer.

Q3: What suspension and axle options do you offer?

We offer heavy-duty mechanical leaf spring suspension, air suspension, and bogie suspension. Axle choices include internationally recognized brands such as FUWA, BPW, and SAF, with capacity options ranging from 13T to 16T per axle.

Q4: Can this side wall trailer also transport ISO shipping containers?

Yes. We can install recessed ISO twist locks onto the floor deck. This allows you to haul 1x40ft container, 2x20ft containers, or a single 20ft container when the side walls are folded down or removed.

Q5: What is the typical production lead time and export support?

Standard production time is 30 to 45 working days. RoadKing provides complete export documentation, shipping logistics (Ro-Ro, Bulk Vessel, or Container Flat Rack), and comprehensive after-sales technical support with genuine spare parts supply.