4 Axles Fence Cargo Semi Trailer

Product Overview

This 4-axle fence cargo semi-trailer is specially optimized for ultra-heavy and large-volume highway haulage, perfectly adapting to long-distance heavy-load transportation and regional road axle-load limit regulations. The whole vehicle adopts a 500mm high-strength reinforced main beam structure, with standard Q345B carbon steel and optional T700 high-tensile steel for lightweight upgrading. The main beam is equipped with upgraded thickened plates: 18mm upper plate, 12mm middle plate and 20mm bottom plate, which significantly enhances anti-fatigue performance and structural stability during continuous full-load operation.
Different from conventional 2-axle and 3-axle models, the four-axle layout realizes scientific load dispersion, effectively reducing single-axle pressure and improving long-distance driving safety and stability. The trailer supports full customization of size and structure, with detachable modular fence panels that can be completely removed to convert into a flatbed trailer for oversized cargo transport. Matched with brand heavy-duty axles, optional air suspension and mature dual-line braking system, the product achieves a perfect balance of ultra-large payload, multi-scene applicability and durable performance, greatly improving comprehensive transportation benefits for large fleets.

Key Features

• Ultra-High Payload & Balanced Four-Axle Load Distribution
  Built for ultra-heavy freight scenarios, the trailer achieves a rated payload of 40–100 tons, far exceeding the load capacity of conventional semi-trailers. The unique four-axle structural design evenly disperses road load pressure, effectively complying with strict regional road weight limit standards. It delivers excellent long-distance driving stability, solving the pain points of overload restriction and poor stability of medium and small tonnage trailers, and is deeply favored by large logistics distribution enterprises.
• Super Thickened Reinforced Beam & Anti-Fatigue Structure
  The whole frame is upgraded for ultra-heavy working conditions. The 500mm height main beam adopts 18mm/12mm/20mm thickened three-section plate structure, with stronger bending resistance and impact resistance. Standard Q345B carbon steel ensures long-term stable operation under heavy load, while optional T700 high-strength steel and aluminum alloy accessories realize lightweight optimization without reducing bearing capacity. The 16mm Q235B channel steel side beam and 3mm anti-slip checkered steel floor further strengthen overall structural rigidity and durability.
• Detachable Modular Design & Multi-Scene Conversion
  It supports flexible customization of trailer length, width and fence height (600mm–1700mm adjustable). Three structural versions including standard type, lightweight type and heavy-duty reinforced type are available to match different cargo characteristics. The core advantage lies in the detachable modular fence structure; all fence panels can be completely removed to convert the trailer into a flatbed, enabling the transportation of over-height and oversized cargo such as pipes and large mechanical parts, with wider application than ordinary enclosed trailers.
• Premium Configuration & All-Weather Safe Transportation
  Equipped with 4 pieces of 13T/16T heavy-duty axles (FUWA/BPW optional) to meet ultra-heavy load transport demands. The standard export 10-layer leaf spring suspension adapts to complex bumpy road conditions worldwide, while upgraded air suspension provides superior shock absorption, protecting fragile goods, livestock and precision equipment during transit. The dual-line pneumatic brake system with WABCO relay valve ensures sensitive and stable braking under full-load status. The full LED electrical system complies with international road safety standards to guarantee all-weather driving safety.
• Professional Anti-Corrosion Process & Rich Customization
  Every trailer undergoes standardized full anti-corrosion treatment including sand blasting rust removal, anti-corrosive primer and polyurethane finish paint, with customizable body colors. Fitted with reliable JOST brand interchangeable kingpin and 28-ton two-speed manual landing gear to ensure stable tractor connection and safe parking. Optional ABS anti-lock system and container twist locks enrich functional scenarios, while personalized accessory layout fully meets diversified user demands.

Specifications

• Product Name: 4 Axles Fence Cargo Semi Trailer
• Loading Capacity: 40–100 tons
• External Dimensions: 12500/13000 × 2500 × 2800/3800 mm (customizable)
• Main Beam: Height 500mm; Upper plate 18mm, Middle plate 12mm, Bottom plate 20mm; Q345B steel (T700 high-tensile steel optional)
• Axles: 4 pcs, 13Ton/16Ton; Optional brands: LONGWIN, FUWA, BPW
• Side Wall (Fence) Height: 600mm–1700mm (customizable, detachable fence available)
• Side Beam: 16mm Q235B channel steel; Q345B/T700 material upgrade optional
• Bottom Platform: 3mm anti-slip checkered steel plate
• Suspension: Standard export leaf spring suspension (90mm*13mm*10 layers); Air suspension optional
• Tires & Rims: 8–12 units; Optional specifications: 12R22.5, 11.00R20; Matching supporting rims, customized sizes available
• Kingpin: LONGWIN/JOST brand, 2.0 inch / 3.5 inch interchangeable
• Landing Gear: LONGWIN/JOST brand, 28-ton two-speed manual operation
• Brake System: Dual-line pneumatic brake system, equipped with WABCO 6-way relay valve, T30/30+T30 spring brake chambers, two 45L air tanks
• Electrical System: 24V voltage, 7-way LED light harness, compliant with international safety standards
• Tool Box: 1 set, standard size 1m*0.5m*0.5m (customizable size)
• Optional Parts: Container twist locks, ABS anti-lock braking system, tarpaulin frame
• Painting Process: Sand blasting rust removal + anti-corrosive primer + polyurethane finish paint, all colors customizable

Application Scope

Customization and Procurement Information

• Customizable Features: Trailer overall length, width, fence height, detachable fence structure, axle tonnage and brand, tire specifications, suspension type (mechanical/air suspension), frame material (Q345B/T700), fence opening style, toolbox size and configuration, tarpaulin frame, painting color, twist lock and ABS system installation, overall structural reinforcement scheme, etc.
• OEM/ODM Capabilities: Support professional personalized customized design and mass production according to customer ultra-heavy load transport demands and local highway regulatory standards.
• MOQ (Minimum Order Quantity): Typically starts at 1 unit.
• Sample Policy: Factory visits are welcome for on-site inspection of production vehicles and production lines.
• Production Lead Time: Typically 15–30 working days after deposit receipt and drawing confirmation.
• Delivery Lead Time: 20–45 working days.
• Packaging & Shipping: Standard export anti-rust and anti-collision protection for key welding and assembly parts; support bulk vessel, RORO ship and 40HQ container international transportation, adapting to global shipping modes.

Quality and Certification

• Quality Inspection: Strict whole-process quality control, including raw material incoming inspection, full welding seam detection, four-axle suspension assembly calibration, braking and electrical system debugging, and full-vehicle ultra-heavy load road testing to ensure operational stability and safety under extreme working conditions.
• Product Certification: Support various international certification standards required by destination countries, including COC, CE, ECE, ADR, OTTC and other compliant export certifications.
• Corporate Certification: Equipped with ISO 9001 Quality Management System certification, standardized heavy-duty trailer production process.
• Available Documentation: Vehicle conformity certificate, core component warranty documents (axles, tires, braking system), material inspection certificates and complete export customs clearance documents.

FAQ

• What is the legal maximum gross weight and cargo capacity of the 4-axle fence semi-trailer?
  The maximum legal gross vehicle weight shall comply with local road transport regulations. The actual available cargo capacity equals the official gross weight limit minus the trailer tare weight. Overloading is strictly prohibited. We can optimize the vehicle structure and configuration according to your conventional heavy-load transportation needs.
• What are the advantages of 4-axle model compared with 2-axle and 3-axle trailers?
  The 4-axle fence semi-trailer adopts a reasonable load distribution design, with higher overall payload, lower single-axle pressure and better long-distance driving stability. It can perfectly adapt to strict axle-load limit policies and ultra-heavy, large-volume cargo transportation scenarios, which cannot be satisfied by 2-axle and 3-axle medium and small tonnage models.
• Can the side fence be completely removed for multi-scene use?
  Yes. The trailer adopts a modular detachable fence structure. All side fence panels can be completely disassembled, converting the trailer into a flatbed type. This design supports the transportation of oversize, over-height cargo such as pipes and large machinery, greatly improving vehicle utilization and application flexibility.
• Can the suspension system be upgraded?
  Suspension upgrade is fully supported. The standard configuration is export-grade leaf spring suspension for conventional ultra-heavy cargo transportation. Air suspension is an optional upgrade with excellent shock absorption performance, suitable for high-value fragile goods, livestock and precision equipment transportation.
• What key points should be noted for ordering and registration?
  The overall vehicle dimensions, fence structure and tare weight must be consistent with official certified parameters; 2. The specifications of axles, tires and suspension cannot be arbitrarily modified without official approval; 3. External widened structures are forbidden on side fences to ensure full compliance with local road regulations and registration standards.