Aluminum Alloy Container Semi-trailer
General Specifications for Aluminum Alloy Container Semi-trailer
Aluminum Alloy Container Semi-trailers are specialized for transporting standard ISO containers (20FT, 40FT, 45FT) with core advantages: lightweight aluminum structure (30%–40% lighter than steel counterparts) and excellent corrosion resistance (ideal for coastal ports and salt-spray environments). They optimize payload capacity and reduce tractor fuel consumption, widely used in port transshipment, cross-border logistics, and cold-chain transport. Below are detailed general specifications.
1. Core Classification by Container Compatibility
| Trailer Type | Applicable ISO Containers | Rated Payload | Key Design Focus |
|---|---|---|---|
| Standard 40FT-focused Model | 1×40FT (GP/HQ) or 2×20FT (GP/HQ) dry containers | 30–35 tons | Balanced strength/weight, fixed twist locks |
| Lightweight Multi-size Model | 20FT/40FT/45FT (GP/HQ) containers (dry/light cargo) | 25–32 tons | Ultra-light aluminum profiles, sliding twist locks |
| Cold-chain Adapted Model | 20FT/40FT refrigerated containers (reefers) | 28–33 tons | Refrigeration power ports, heat-insulated twist locks |
2. Universal Basic Specifications
2.1 Axle Configuration & Load Capacity
| Parameter | Standard 40FT Model | Lightweight Multi-size Model | Cold-chain Adapted Model |
|---|---|---|---|
| Axle Quantity | 3 axles (tandem rear axles) | 3 axles | 3–4 axles (4-axle for heavy reefers) |
| Rated Payload | 30–35 tons | 25–32 tons | 28–33 tons |
| Max Static Load | 42 tons | 38 tons | 40 tons |
| Axle Type | BPW/SAF-Holland heavy-duty axles; shaft diameter 90 mm (forged 20CrMnTi) | Same as above; optional aluminum alloy wheel hubs (reduce unsprung weight) | Reinforced axles (shaft diameter 95 mm); anti-corrosion coating |
2.2 Overall Dimensions (Compliant with ISO/GB Standards)
All dimensions align with ISO 1496-1 (container handling) and GB 1589-2016 (vehicle size limits):
| Dimension | Standard 40FT Model | Lightweight Multi-size Model | Cold-chain Adapted Model |
|---|---|---|---|
| Total Length (Trailer) | 13.95 m (fits 40FT container) | 14.8 m (extends for 45FT container) | 13.95–14.8 m |
| Total Width | ≤2.55 m (legal limit for container transport) | ≤2.55 m | ≤2.55 m |
| Total Height (Unloaded) | 1.5–1.6 m (frame height) | 1.4–1.5 m (lowered for lightweight design) | 1.5–1.6 m |
| Wheelbase | 6.8+1.3 m (3-axle: tandem rear axles) | 6.5+1.3 m | 6.8+1.3 m (3-axle); 6.0+1.3+1.3 m (4-axle) |
| Ground Clearance | 300–320 mm | 280–300 mm | 300–330 mm (reinforced for reefer weight) |
2.3 Aluminum Alloy Structure & Material
The core advantage lies in high-strength, lightweight aluminum alloy materials (6082-T6 series, industry standard for load-bearing components):
| Component | Material Specification | Key Performance 指标 (Key Performance Indicators) |
|---|---|---|
| Main Longitudinal Beams | 6082-T6 aluminum alloy profiles; section size: 350×180×10×12 mm (H×W×Web Thickness×Flange Thickness) | Tensile strength: ≥310 MPa; Yield strength: ≥270 MPa; Weight reduction: 35% vs. Q345B steel beams |
| Crossbeams | 6061-T6 aluminum alloy rectangular tubes; size: 160×100×6 mm (lightweight model) / 180×120×8 mm (standard model) | Spacing: 500–600 mm; Total quantity: 12–16 pcs; Anti-bending capacity: ≥15 kN/m |
| Twist Lock Brackets | 6082-T6 aluminum alloy castings (integrated with frame) | Load-bearing capacity: ≥20 tons per lock; Corrosion resistance: Pass 1,000-hour salt-spray test (ISO 9227) |
| Surface Treatment | Natural aluminum oxide film (thickness ≥10 μm) + optional clear anti-corrosion coating | No need for painting; Service life: 15–20 years (vs. 8–12 years for steel trailers) |
3. Type-Specific Detailed Specifications
3.1 Standard 40FT-focused Model
Container Compatibility:
Primary: 1×40FT GP/HQ container (length 12.192 m, width 2.438 m, height 2.591/2.896 m).
Secondary: 2×20FT GP/HQ containers (length 6.058 m each) via 8 fixed ISO 1161 twist locks (4 per 20FT container).
Weight Advantage:
Empty weight: 6.8–7.2 tons (40FT configuration) – 32% lighter than a steel trailer of the same capacity (10–10.5 tons).
Effective payload increase: 1.8–2.3 tons per trip (critical for high-density cargo like grains or metals).
3.2 Lightweight Multi-size Model
Adjustable Twist Lock System:
10 sliding ISO 1161 twist locks (manual adjustment via lever) – spacing adjustable between 6.058 m (20FT) and 14.8 m (45FT) to fit 20FT/40FT/45FT containers.
Ultra-light Design:
Crossbeams: 6061-T6 hollow aluminum tubes (reduces crossbeam weight by 18% vs. solid profiles).
Wheel hubs: Optional 22.5-inch aluminum alloy rims (reduce unsprung weight by 15 kg per wheel).
Empty weight: 6.2–6.5 tons (40FT configuration) – ideal for light cargo (e.g., furniture, textiles) to maximize volume-based payload.
3.3 Cold-chain Adapted Model
Reefer Compatibility:
Equipped with 2×24V DC power ports (IP67 waterproof) on the front frame – compatible with standard reefer container power sockets (for cooling unit operation during transport).
Twist locks with 5 mm thick EPDM heat-insulating pads – reduces cold loss between the container and frame by 25%.
Reinforced Structure:
Lower crossbeams reinforced with 6082-T6 aluminum plates (thickness 8 mm) – supports heavy reefer containers (max reefer weight: 8 tons).
Optional aluminum alloy side guards (height 500 mm) – anti-collision protection without adding excessive weight (avoids compromising fuel efficiency).
4. Safety & Container Securing Systems
4.1 Twist Lock System (Core Securing Component)
Standard Configuration: 8–12 ISO 1161 twist locks (per model); made of 6082-T6 aluminum alloy (forged, not cast – higher impact resistance).
Operation: Manual twist (standard) or electric control (optional, remote-controlled – reduces locking time by 50% for port operations).
Safety Features: Each lock has a mechanical safety pin – prevents accidental unlocking during transport (even if the twist mechanism fails).
4.2 Braking & Stability
Braking System:
Main Brakes: Pneumatic disc brakes (disc diameter 450 mm) – standard for all models; superior heat dissipation for long downhill hauls (e.g., mountainous cross-border routes).
Safety Controls: ABS (Anti-lock Braking System, ECE R13-compliant) + EBS (Electronic Braking System, optional for 4-axle models) – shortens emergency braking distance by 20% vs. non-ABS trailers.
Suspension:
Standard: Reinforced leaf spring suspension (14 leaves per axle; 60Si2Mn steel) – durable for port rough pavements.
Optional: Air suspension (3 airbags per axle; 12 tons capacity per airbag) – reduces vibration to protect reefer cooling units (cold-chain model) or fragile cargo.
5. Compliance & Certification
To ensure global market access, the trailer meets the following standards:
International Standards:
ISO 1496-1 (container handling equipment), ISO 3874 (road safety for commercial vehicles), ISO 9227 (salt-spray corrosion resistance).
Regional Standards:
China: GB 1589-2016 (vehicle dimensions/load limits), GB/T 13787 (semi-trailer general technical requirements).
EU: ECE R13 (braking systems), ECE R110 (axle safety), ECE R27 (reflective devices).
US: DOT FMVSS 121 (braking systems), DOT FMVSS 108 (lighting and signaling).
Material Certification: 6082-T6/6061-T6 aluminum alloys with mill test reports (MTRs) – confirm tensile/yield strength and corrosion resistance.
6. Optional Configurations
Efficiency Upgrades:
Electric twist locks (remote-controlled, 100-meter range) – for high-volume port transshipment (e.g., 50+ containers per day).
GPS tracking system (with real-time container lock status and location monitoring) – for fleet management and cargo security.
Environmental Adaptations:
Anti-slip aluminum chequer plates (mounted on frame edges) – prevents container shifting on wet surfaces (coastal ports).
Low-temperature hydraulic oil (-30°C viscosity) – for cold-region transport (e.g., Northern China, Canada).
Maintenance Aids:
Grease-free axle bearings (IP67-sealed) – maintenance interval extended to 150,000 km (vs. 100,000 km for standard bearings).
Toolbox (aluminum alloy, mounted on frame side) – stores twist lock maintenance tools and spare safety pins.
Notes
Payload Calculation: Always confirm the container's max gross weight (e.g., 40FT GP container max gross weight: 30.48 tons) and match it to the trailer's rated payload.
Corrosion Maintenance: For coastal use, rinse the frame with fresh water every 3 months to remove salt residue (enhances oxide film durability).
Manufacturer Variations: Specifications may differ by brand (e.g., CIMC Aluminum, XCMG Aluminum Trailers) – verify aluminum alloy grade, twist lock quantity, and axle brand with suppliers.
Product Brief
The Aluminum Alloy Container Semi-trailer (40FT Standard Model: AAC-350) is a high-efficiency logistics solution engineered for transporting standard ISO containers-including 1×40FT (GP/HQ) dry containers, 2×20FT (GP/HQ) dry containers, and 40FT refrigerated containers (reefers). Its core advantages lie in the 6082-T6 aluminum alloy frame (35% lighter than steel counterparts, empty weight only 7.0 tons) and superior corrosion resistance (passes 1,000-hour salt-spray testing), enabling a 35-ton rated payload and 15–20-year service life. Compliant with global standards (ISO 1496-1, GB 1589-2016, ECE R13), it pairs seamlessly with 400+ HP heavy-duty tractors (Sinotruk HOWO, Volvo FH16, Daimler Actros) via a 90# kingpin (SAE J844). Ideal for port transshipment, cross-border 干线物流 (trunk-line logistics), and cold-chain transport (for reefers), this semi-trailer reduces tractor fuel consumption by 12% and boosts single-trip effective payload by 1.8–2.3 tons vs. steel models-perfect for logistics firms, port operators, and freight forwarders.
Product Content Introduction
Aluminum Alloy Container Semi-trailer (40FT Standard Model: AAC-350) features a high-strength, lightweight aluminum alloy frame that balances durability and payload efficiency. Its main longitudinal beams are crafted from 6082-T6 aluminum alloy profiles (350×180×10×12 mm section size), with 14 crossbeams (180×120×8 mm 6061-T6 aluminum rectangular tubes) welded at 600-mm intervals-ensuring even weight distribution across the 35-ton payload and resisting bending under concentrated loads (e.g., 40FT containers filled with grains). The frame undergoes natural oxide film treatment (thickness ≥10 μm) + optional clear anti-corrosion coating, eliminating the need for repainting and withstanding coastal salt-spray environments (service life 15+ years vs. 8–12 years for steel trailers). At 7.0 tons empty weight, it increases effective payload by 1.8–2.3 tons per trip, directly cutting transport costs for high-frequency routes.
Aluminum Alloy Container Semi-trailer (40FT Standard Model: AAC-350) offers flexible container compatibility with a reliable ISO-standard twist lock system. It is pre-equipped with 8 ISO 1161 twist locks (forged 6082-T6 aluminum alloy, 20-ton load capacity each)-4 sets for 1×40FT containers and 2 sets per 20FT container (enabling quick switching between 40FT and 2×20FT configurations). The twist locks feature manual operation with safety pins (preventing accidental unlocking during transit) and can be upgraded to electric remote-controlled locks (reducing locking/unlocking time from 5 minutes to 1 minute for port high-volume operations). The 13.95-meter frame length and 2.55-meter width perfectly fit standard ISO containers, with 50-mm clearance on both sides to avoid friction during loading/unloading via reach stackers or gantry cranes.
Aluminum Alloy Container Semi-trailer (40FT Standard Model: AAC-350) is equipped with a robust 3-axle system for stable heavy-duty transport. The axles are BPW heavy-duty units (shaft diameter 90 mm, forged 20CrMnTi alloy steel) with a 6.8+1.3 m wheelbase-distributing the 35-ton payload to ≤11.7 tons per axle (complying with EU ≤11.5 tons/axle and China ≤10 tons/axle standards for trunk-line logistics). It uses 6×295/80R22.5 radial tires (load index 152/148, max load 3,550 kg/tire) with deep 18-mm treads-enhancing traction on wet port pavements and ensuring 120,000 km of service life. The suspension system adopts reinforced leaf springs (14 leaves per axle, 60Si2Mn steel) that absorb vibrations from uneven highways, protecting fragile cargo (e.g., electronic appliances in dry containers) from damage.
Aluminum Alloy Container Semi-trailer (40FT Standard Model: AAC-350) prioritizes safety with advanced braking and stability systems. It is fitted with 450-mm diameter pneumatic disc brakes (superior heat dissipation vs. drum brakes for long downhill hauls, e.g., mountainous cross-border routes) paired with ECE R13-certified ABS and optional EBS (Electronic Braking System)-reducing emergency braking distance by 20% vs. non-ABS trailers. A spring-loaded mechanical parking brake acts on all 3 axles, securing the trailer and 35-ton container firmly when parked on slopes (≤15°) during port loading. The frame's front end is reinforced with a 6-mm thick aluminum alloy bumper (energy-absorbing structure) that mitigates impact damage in case of minor collisions with tractors or loading equipment.
Aluminum Alloy Container Semi-trailer (40FT Standard Model: AAC-350) supports cold-chain transport with reefer-specific design features. It is pre-installed with 2×24V DC power ports (IP67 waterproof) on the front frame-compatible with standard 40FT reefer container power sockets, ensuring the reefer's cooling unit operates continuously during transit (temperature control range: -25°C ~ +10°C for frozen food or pharmaceuticals). The twist locks are fitted with 5-mm thick EPDM heat-insulating pads, reducing cold loss between the reefer and frame by 25% and lowering the reefer's fuel consumption by 8%. Optional aluminum alloy side guards (height 500 mm) are available to protect the reefer's exterior from scratches during narrow-road transport.
Aluminum Alloy Container Semi-trailer (40FT Standard Model: AAC-350) meets global compliance standards to enable cross-market sales and operation. It adheres to ISO 1496-1 (container handling compatibility), China's GB 1589-2016 (total length 13.95 m, total width 2.55 m, total height 1.6 m-within road transport limits), EU ECE R13 (braking performance) and ECE R110 (axle safety), and US DOT FMVSS 121 (braking systems). The aluminum alloy structure has passed static load testing (42 tons for 4 hours) and dynamic load testing (35 tons at 60 km/h for 1,000 km), with test reports provided in English, Spanish, and Mandarin to simplify customs clearance for export to Southeast Asia, Europe, and North America.
Aluminum Alloy Container Semi-trailer (40FT Standard Model: AAC-350) offers customizable upgrades and comprehensive after-sales support to meet client-specific needs. Optional configurations include: electric remote-controlled twist locks (100-meter range), a GPS tracking system (with real-time location, twist lock status, and payload monitoring), grease-free axle bearings (maintenance interval extended to 150,000 km), and low-temperature hydraulic oil (-30°C viscosity) for cold regions (e.g., Northern China, Canada). The manufacturer provides a 2-year warranty for the aluminum alloy frame and axles, plus free replacement of wear parts (brake pads, twist lock safety pins) within 6 months. On-site training is offered for client teams to master twist lock operation and frame maintenance, while 24/7 technical support addresses issues during peak port operations (e.g., 50+ daily container moves).
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