12.5M 3 Axle Heavy Duty Flatbed Trailer for Equipment Transport
The 12.5M 3 Axle Heavy Duty Flatbed Trailer from RoadKing is engineered for high-payload operations requiring exceptional structural integrity. Boasting a massive 80-ton loading capacity, this heavy-duty flatbed semi-trailer is the ideal solution for transporting heavy construction equipment, excavators, mining machinery, structural steel, and oversized industrial components across demanding terrains.
Built with reinforced Q345/T700 high-strength steel chassis, upgraded 16-ton heavy-duty axles, and multi-leaf suspension, it delivers uncompromised stability under severe working conditions. Looking for custom fleet solutions? Explore our complete flatbed semi trailer for direct factory quotes and custom drawings.
Key Technical Specifications
| ITEM | SPECIFICATION |
| Dimension(mm) | 12500 × 2500 × 1550mm |
| Container Capacity | 40FT Container |
| Loading Capacity | 80 Tons |
| Axle | 3 Axles |
| Suspension System | Heavy Duty Reinforced Suspension |
| Main Beam Material | High Strength Manganese Steel |
| Main Beam Structure | Straight Main Beam |
| Upper Flange Thickness | 16mm |
| Middle Web Thickness | 10mm |
| Lower Flange Thickness | 16mm |
| Side Beam | 16# Non-standard Channel Steel |
| Cross Beam | 10# National Standard Channel Steel |
| Floor Plate | 3mm Checkered Plate |
| Floor Reinforcement | 6 Rows Hat Channel Steel |
| Rope Hooks | 42 Pieces |
| Tensioners | 22 Pieces |
| King Pin | #90 Assembled King Pin |
| Landing Gear | 28T Huadong Synchronous Landing Gear |
| Leaf Spring | 120mm × 16mm × 10 Pieces |
| Axle Capacity | 16T Axles × 3 |
| Tire | 12.00R20 (12 Pieces) |
| Tire Brand | Kangpeisen / Other Brand Optional |
| Rim | 8.5 × 20 Steel Rim |
| Twist Lock | 12 Sets |
| Tool Box | Included |
| Spare Tire Carrier | Included |
| Brake Chamber | 6 Double Chambers |
| Air Reservoir | 40L Iron Air Reservoir × 2 |
| Relay Valve | Kangjian |
| ABS | Optional |
| Painting | Powder Coating |
80-Ton Payload Designed for Heavy Equipment Transport
Standard flatbed trailers often struggle with high concentrated loads from heavy machinery. The RoadKing 80t model utilizes an upgraded chassis geometry to prevent beam sag and frame deformation. It provides a reliable open deck platform for:
- Construction Machinery: Heavy excavators, bulldozers, road rollers, wheel loaders, and drilling rigs.
- Mining & Industrial Equipment: Crushers, generators, factory transformers, and oversized mechanical gears.
- Structural Materials: Heavy steel beams, precast concrete girders, pipes, and energy infrastructure components.
Need a lower deck height for extremely tall equipment clearance? Check out our heavy-duty lowbed semi trailers engineered for heavy machinery haulage.
Reinforced Q345 / T700 Steel Chassis & Frame
The main beam is submerged-arc welded using premium high-strength steel. The optimized flange and web plate thickness ensures high resistance against bending and torsional stress:
Structural Engineering Highlights:
- Upper Flange Plate: 16 mm high-tensile steel
- Middle Web Plate: 10 mm heavy-duty steel plate
- Lower Flange Plate: 16 mm high-tensile steel
- Checkered Steel Deck: 3 mm anti-slip diamond plate with strategically placed heavy-duty rope hooks and tie-down rings for secure lashings.
Upgraded 16T Heavy-Duty Axles & Reinforced Suspension
To accommodate 80-ton payloads, this flatbed is equipped with 3 × 16-ton axles (instead of standard 13-ton axles).
- Enhanced Axle Performance: Distributes weight efficiently to minimize stress on individual tires and brakes.
- Heavy-Duty Mechanical Suspension: Thickened leaf spring stacks engineered for rugged off-road mining sites and unpaved haul roads across Africa, the Middle East, and South America.
- Optional Air Suspension: For delicate industrial equipment transport, we offer air suspension systems for smoother shock absorption.
Dual-Purpose Functionality: 40FT Container Shipping
While optimized for machinery, this trailer retains total flexibility for intermodal shipping. Equipped with 12 ISO container twist locks, it can easily secure 1 x 40FT container or 2 x 20FT containers.
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