Product Overview
The 12.5m 3-Axle Drop-Side Semi-Trailer is designed for transporting construction materials, agricultural products, palletized goods, bagged cargo and other general freight. Its 12.5-meter loading platform provides generous cargo space, while the drop-side panels allow convenient loading and unloading from multiple sides.
The stable three-axle configuration helps distribute the cargo load evenly and ensures reliable road performance during heavy-duty and long-distance transportation. It is an ideal solution for logistics companies, construction-material suppliers, agricultural businesses, cargo distributors and transport fleets.
The complete trailer frame is manufactured using robotic automatic welding technology to achieve uniform welds, structural consistency and dependable load-bearing performance. Before coating, the steel structure undergoes shot blasting to remove rust, oxide scale and surface contaminants. Electrostatic powder coating combined with high-temperature baking creates a durable protective finish with excellent corrosion resistance.
| Item | Specification |
|---|---|
| Vehicle Model | 3‑Axle Flat Side Wall Semi‑Trailer |
| Overall Dimensions (L×W×H) mm | 12500×2500×3100 |
| Curb Weight (kg) | 7500 |
| Rated Load Capacity (Ton) | 60 Ton |
| Axle | 13T Fuwa Axle |
| Number of Axles | × 3 |
| Suspension System | Standard Mechanical Suspension |
| Frame | Main beam height 500mm; Upper flange: 14mm thickness,140mm width; Lower flange:16mm thickness,140mm width; Web thickness:8mm |
| Leaf Spring | 10 pcs / 10 pcs / 10 pcs Leaf Spring Suspension |
| Container Twist Lock | 12 sets CIMC Twist Locks |
| Floor | 3mm Checkered Steel Plate |
| Kingpin | 50mm / 90mm, Jost Brand |
| Tire Specification & Quantity | 12R22.5 Triangle Tires, 12 pcs total |
| Spare Tire Carrier | 2 pcs |
| Toolbox | 1 pc |
| Landing Gear | 25‑ton Load Capacity, Jost Brand |
| Brake Chamber | WABCO RE6 Relay Valve, TKL Brand T30/30+T30 Spring Brake Chamber, 45L Air Reservoir ×1 |
| Brake System | WABCO RE6 Relay Valve, TKL Brand T30/30+T30 Spring Brake Chamber, 45L Air Reservoir ×1 |
| Electrical System | 24V, 7‑pin connector, taillights with turn signal, brake light & reflector, side marker lights equipped |
| Painting Process | Powder Spraying + Baking Varnish |
Main Features
- 12.5-meter cargo loading platform
- Heavy-duty three-axle configuration
- Drop-side panels for convenient cargo handling
- Flexible loading and unloading from multiple sides
- Suitable for bulk, packaged and palletized goods
- Robotic automatic welding for consistent weld quality
- Strong frame structure and dependable load capacity
- Shot blasting for thorough rust and oxide removal
- Electrostatic powder coating for uniform surface protection
- High-temperature baking for enhanced coating durability
- Excellent corrosion and weather resistance
- Customizable configurations for different markets
Robotic Automatic Welding
The main frame and critical structural components of the 12.5m 3-Axle Drop-Side Semi-Trailer are produced using robotic automatic welding equipment. This process delivers uniform weld seams, accurate component positioning and consistent structural quality.
Compared with traditional manual welding, robotic welding reduces welding deformation and strengthens key structural connections. This supports reliable performance during repeated loading, unloading and long-distance cargo transportation.
Shot Blasting and Rust Removal
Before coating, the complete steel structure undergoes professional shot blasting treatment. This process removes rust, oxide scale, welding residue and other contaminants from the metal surface.
Shot blasting creates a clean and properly textured surface, helping the powder coating adhere more securely. It reduces the risk of premature coating peeling, cracking and corrosion, particularly in humid, coastal and demanding operating environments.
Electrostatic Powder Coating and High-Temperature Baking
After shot blasting, the trailer surface is finished using electrostatic powder coating and high-temperature baking technology. The powder is applied evenly to the prepared steel structure and cured at high temperature to form a dense protective layer.
This surface-treatment process provides:
- Excellent resistance to rust and corrosion
- Strong coating adhesion
- Uniform color and smooth surface finish
- Improved resistance to scratches and weather exposure
- Longer trailer service life
- Reduced maintenance requirements
- Reliable protection under demanding transport conditions
Stable Three-Axle Configuration
The three-axle structure distributes cargo weight evenly and improves stability during transportation. It provides dependable road performance for heavy loads and long-distance logistics operations.
Axle brands, rated axle capacity, suspension systems, tires and braking configurations can be customized according to the required payload, local road conditions and destination-market regulations.
Wide Range of Applications
The 12.5m 3-Axle Drop-Side Semi-Trailer is suitable for transporting:
- Construction materials
- Agricultural products
- Bagged grain and feed
- Palletized cargo
- Steel products
- Timber and wood products
- Industrial components
- Packaged goods
- General commercial freight
Customization Options
The trailer can be customized according to your transportation requirements, including:
- Axle brand and rated capacity
- Mechanical or air suspension
- Tire brand and specifications
- Platform dimensions
- Rated loading capacity
- Drop-side panel height and thickness
- Removable or fixed side panels
- Container twist locks
- Landing gear
- Braking system
- Trailer color
- Toolboxes and spare tire carriers
- Electrical and lighting systems
Contact Lianning Group
Looking for a reliable 12.5m 3-Axle Drop-Side Semi-Trailer for your cargo transportation business?
Contact Lianning Group today for detailed specifications, customized configurations and a competitive factory quotation. Please provide your cargo type, required loading capacity, destination country and order quantity. Our team will recommend a suitable drop-side semi-trailer solution for your transportation needs.
