Multi-Purpose 20ft & 40ft Combi Skeletal Trailer
The Multi-Purpose 20ft & 40ft Combi Skeletal Trailer is a versatile, retractable intermodal transport chassis engineered specifically for logistics fleets and container yards handling mixed maritime freight. Fabricated using high-tensile Q345B/Q550/T700 structural steel and automated submerged-arc welding, it features retractable middle twist-locks and adjustable front stop assemblies, allowing operators to seamlessly switch between hauling a single 40ft ISO container or two independent 20ft ISO containers simultaneously. Equipped with robust multi-axle configurations (FUWA/BPW) and precision braking systems, it maximizes fleet utilization and operational flexibility. Fully certified under ISO9001, CCC, CE, DOT, and SGS standards.
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Product Details
Technical Specifications Matrix
| Specification Category | Parameter Details |
| Product Name | Multi-Purpose 20ft & 40ft Combi Skeletal Trailer / Retractable Intermodal Combination Chassis |
| Condition | 100% Brand New |
| Rated Payload Capacity | 40 – 60 Tons |
| Overall Dimensions (L×W×H) | 12,500–13,000 × 2,480–2,500 × 1,450–1,600 mm |
| Compatible Container Size | One 40ft ISO Container, or Two Independent 20ft ISO Containers |
| HS Code | 8716391000 |
| International Certifications | ISO9001, CCC, CE, DOT, SGS |
Key Structural & Performance Features
1. Retractable Combi Chassis & High-Tensile Structure
- High-Tensile Steel Construction: Fabricated using Q345B, Q550, or T700 structural steel plates, providing superior yield strength and torsional rigidity to support dynamic mixed-load distributions.
- Automated SAW Welding: Robotic Submerged-Arc Welding (SAW) combined with $CO_2$ gas-shielded welding guarantees absolute structural joint integrity under intensive daily multi-box conversion stresses.
- Retractable Twist-Lock Mechanism: Equipped with retractable or fold-away middle twist-locks and adjustable front/rear container stops, enabling rapid reconfiguration between 40ft single-box and dual 20ft box setups.
- Heavy-Duty ISO Twist-Locks: Precision-cast ISO twist-locks strategically positioned across the frame to lock containers firmly against longitudinal and lateral shift during transit.
2. Axle, Suspension & Pneumatic Braking Systems
- Axle Configurations: 2 or 3 axles (FUWA, BPW, or equivalent premium brands; 13T / 16T capacity per axle) optimized for balanced load transfer across varied container payloads.
- Suspension Options: Heavy-duty multi-leaf spring suspension or smooth-riding air suspension systems designed for stable load balancing whether running single or dual containers.
- Tire & Rim Setup: 8 to 12 heavy-duty commercial tires paired with 8.25-22.5 or 11.00R20 high-load steel rims.
- Pneumatic Braking System: Advanced dual-line pneumatic braking system featuring emergency relay valves and ABS compliance ensuring reliable, responsive stopping safety.
3. Operational Accessories & Logistics Setup
- Landing Gear & Kingpin: 28-Ton two-speed heavy landing gear (JOST / FUWA) and standard 50# (2") or 90# (3.5") interchangeable kingpins for rapid tractor coupling.
- Electrical & Lighting System: 24V 7-pin LED lighting system with waterproof wiring harnesses meeting international road safety directives.
- Standard Utility Add-ons: Spare tire carriers, steel mudguards with anti-spray flaps, and a lockable weather-sealed tool box.
Commercial & Logistics Terms
- Warranty Policy: 3-Year warranty for the main beam; 1-Year warranty for axles and suspension components.
- Delivery Lead Time: 20 – 30 working days upon order confirmation.
- Packaging & Shipping: Nude packing; stacked or shipped via Ro-Ro vessel, Bulk Cargo ship, or Container.
- Payment Terms: T/T (Telegraphic Transfer), L/C (Letter of Credit).
