12m 3 Axle Flatbed Semi Trailer for Containers

Our 12m flatbed semi‑trailer is built for heavy‑load container and bulk freight transport. Adopting high‑strength welded main beam structure, this trailer performs steadily on rough inland roads. We provide customizable payload and configurations to match different regional transport requirements. 

Custom‑built flatbed trailers are available from our semi‑trailer manufacturing facility to match individual project demands. Custom lengths ranging from 20 to 60 feet can be realized, alongside payload capacities covering 20‑80 tons. Axle quantities of 2, 3, 4 or 5 can be allocated corresponding to final trailer dimensions and rated load. Further modifications are accessible for suspension assemblies, twist‑lock fittings, brake units and LED lighting components.

• Container Transport: Meets standard container transport requirements and is suitable for intermodal logistics operations.
• Construction Machinery Transfer: Efficiently carries heavy machinery and construction equipment to job sites.
• Large Equipment Transport: Solid bearing capacity enables secure hauling of oversized industrial machinery and heavy structural components.
• Building Material Logistics: Used for efficient transportation of steel, pipes, and other building materials.

• Length: 12 meters (about 40 feet, customizable 20–60 feet)
• Rated Load: 20–80 tons (customizable)
• Axles: 3 axles, 13/16 tons per axle (available in 2/3/4/5 axle configuration)
• Type: Gooseneck Type / Tandem Type
• Main Beam Material: Q345 / T700
• Deck Material: 4–8mm checkered steel
• Twist Locks: 4–12 pieces (depending on trailer length)
• Suspension System: Mechanical suspension / Air suspension
• Tire Specification: 12R22.5 × 12 pieces (4 tires per axle)
• King Pin: #50 (2") / #90 (3.5"), JOST / Other Brand
• Landing Gear: 28 Ton Two Speed, JOST / Other Brand
• Vehicle Painting: Electrophoresis painting

• Pricing for this flatbed semi‑trailer falls within USD 7,000‑25,000. Custom choices shape the ultimate cost. Longer body size, enhanced payload, multi‑axle arrangement, air suspension, superior raw materials and brand‑name accessories add material and manufacturing costs, pushing up the total offer price.

• Welding: Main beams and cross beams are processed with automatic submerged‑arc welding, complemented by manual welding. Automated operations produce steady continuous welds for critical load‑bearing parts. Manual welding is implemented at high‑stress points to strengthen frame stability. Thanks to this hybrid welding solution, the trailer gains stronger anti‑torsion property and higher load capacity, and its working service life is extended accordingly.
• Painting: The trailer uses advanced electrophoretic painting technology. After degreasing and phosphating treatment, the body is immersed in an electrophoresis tank for coating, ensuring the paint film uniformly covers every corner of the frame. This provides excellent adhesion and rust protection, with superior scratch resistance to prevent corrosion and rusting.

• Main Beam Material: Made of high-strength steel Q345/T700, with excellent bending and torsion resistance, providing stable cargo support.
• Checkered Steel Deck:Textured checkered steel serves as the trailer deck material. Additional surface friction is generated to stop cargo slippage while the trailer is in operation.
• Deck Design: The open-deck structure provides great flexibility for cargo loading and unloading, suitable for top or side loading with cranes or forklifts.

• Cargo Securing System: Equipped with twist locks, tie-down points, and removable stakes. Twist locks secure containers; tie-down points are used with ropes to fix steel materials; stakes prevent cargo from shifting sideways.

• Braking System: Standard drum brake system, optional ABS anti-lock braking system for enhanced stability during emergency braking.
• Suspension System: Available in mechanical or air suspension, ensuring smooth travel under different road conditions and effectively protecting cargo from vibration damage.
• King Pin: Made of high-quality material with excellent wear and impact resistance, compatible with mainstream tractor models.

• Warranty: One-year warranty covering main beam, suspension, braking system, and other core components. During the warranty period, failures caused by manufacturing defects are eligible for free repair or part replacement.
• Spare Parts Supply: Genuine replacement components can be sourced from us throughout the trailer’s whole service cycle for fast part availability. Expert maintenance guidance will also be supplied, helping to prolong the overall working lifespan of your semi‑trailer.

Purchasing flatbed semi‑trailers through Haoyue means access to genuine factory‑direct rates with no intermediate mark‑ups. Better trailer quality can therefore be achieved within your target budget. As a professional semi‑trailer manufacturer, free‑of‑charge custom design support is offered for your projects. Submit an inquiry via our website message system to receive full technical specifications and an official quote.

Q1: Can this trailer transport cargo over 3 meters in height?
A: Yes. Different regional height regulations can be accommodated by modifying deck height and tire specs. Where extremely tight height constraints apply, the lowbed trailer is highly recommended.
Q2: Can it transport overlength cargo?
A: Yes. We offer up to 60 feet of customization, ideal for transporting long cargo.
Q3: Can the flatbed be thickened to carry heavier loads?
A: Yes. Steel plates ranging from 4‑8 mm in thickness may be applied to strengthen the trailer deck according to actual loading demands, securing reliable structural performance. For scenarios involving extra‑heavy hauling tasks, our lowbed trailer is worth your consideration.
Q4: How long does customization take?
A: Standard configurations come with a 3‑4‑week production cycle. Longer lead times apply for non‑standard custom orders. Accurate scheduling will be provided once full requirements are confirmed.
Q5: Does customizing the length affect transport compliance?
A: We provide globally compliant size solutions based on local regulations to ensure legal road use.