40FT Container Chassis Trailer
3 Axle Skeleton Trailer for Port and Logistic Use
3-Axle 40 ft Container Shipping Skeleton Semi-Trailer – Heavy-Duty, Reliable, Euro-Style Container Chassis for Intermodal Freight Transport
Product Description
ZW Group 3-Axle 40 ft Container Shipping Skeleton Semi-Trailer is a premium container chassis tailored for modern intermodal logistics and freight transport.
Engineered to carry 20ft and 40ft ISO containers, this skeleton trailer supports high payload capacities while fulfilling stringent durability, safety, and efficiency requirements.
It features a hi-ten steel main frame, corrosion-resistant coatings, advanced suspension systems, and heavy-duty axles—all designed for seamless integration with container shipping fleets, ports, terminals, and transport yards.
Designed with versatility in mind, the trailer accommodates ISO corner castings (twist locks), extendable beam options, and optional hydraulic support legs—making it suitable for containerized cargo, dry freight, refrigerated containers (REEFER), and hazardous material transport. Coupled with Y-shaped or rectangular beam configurations, users can tailor the chassis to optimize payload and reduce dead weight.
This product supports OEM and OEM-style heavy-equipment standards, enabling branded customization for lease fleets, logistics companies, and OEM fleets alike.
Product Features
Universal Advantages
High-Performance Paint & Corrosion Protection
Multi-stage shot blasting, zinc-rich primer, epoxy mid-coat, polyurea or high-durability topcoat
Ensures superior corrosion resistance, UV protection, and lifespan in marine and port environments
Advanced Axle System
High-strength forged or welded beam axles, rated for 22.5″, 24.5″ or 26″ tires
Available with (BPW), (BPW, SAF), or Chinese premium ZW axle brands—standard loadings of 18 t per axle, with optional 20 t heavy-load packages
Durable Tires
Premium radial tires (MICHELIN, Bridgestone, Hankook, or Matrix) in sizes 385/65R22.5 or 11R22.5
Wear indicators, heat-resistant compounds, and reinforced sidewalls for high-mileage freight haulage
Air Suspension / Mechanical Suspension Options
Standard: Reliable mechanical leaf-spring suspension
Optional: Air suspension system for lighter bounced ride, improved handling, adaptable ride height, and container loading optimization
2.2 Detail-Level Advantages
Main Frame:
Built with 10 mm–14 mm high-strength (e.g. Q345 or EN S355) steel box-section beams
Precision-welded cross-members at 600 mm spacing, finite-element optimized for minimal torsion
Optional bolt-on extensions for versatility between 40′, 45′, and 48′ containers
Twist Locks & Lashing Rings:
ISO-certified lock pockets are CNC-machined for high engagement accuracy
Optional hydraulic or manual retractable twist locks for rapid container loading
Integrated lashing rings for securing internal cargo or safety straps
Landing Gear & Kingpin:
Heavy-duty landing gear (two-speed or optional hydraulic legs) rated up to 90 tons of lift capacity
Crowd-tested kingpin (2″ or 3.5″), AAR or ISO spec, suitable for center or offset placement per customer design
Lights & Electrical:
Fully wired LED lighting (tail, brake, marker lights) compliant with ECE R-23 / FMVSS108
Optional light pod configurations: 7-pin or 13-pin plugs, corner-mounted LED lamps, reflective tapes (ECE 104, US DOT certified)
Brakes & Safety:
Dual-line air brake system (ABS / EBS optional), spring-applied parking brakes, automatic slack adjusters
Optional auto-leveling or load-sensing brake systems for performance in variable load scenarios
Production Process
Raw Material Inspection & Cutting
Incoming steel beams and plates are inspected for material grade (e.g. Q345B or S355) and calibrated automatically cut via CNC plasma or laser systems.
Shot Blasting & Welding Frame Construction
All components undergo grit blasting (SA2.5) to remove rust/scale.
Semi-automatic, robot-assisted welding builds main beams, cross members, and supports per QA-controlled weld protocols.
Assembly & Component Integration
Post-welded chassis is insulated and assembled with axles, suspension assemblies, landing gear, twist locks, brake system, air lines, and wiring harness under controlled conditions.
Painting & Anti-Corrosion Coating
Multi-layer coatings: zinc-rich primer, epoxy mid-coat, and final topcoat applied in spray booths; baked or cured to ensure adhesion and resistance to abrasion and salt spray.
Quality Control & Inspection
Dimensional inspection (laser scan & CAD overlay), coating thickness measurement, weld X-ray tests for critical joints.
Functional Testing
Pre-sea trials include brake lines pressurization, lighting system check, twist lock torque testing, and manual load-bearing test before moving to structural load testing.
Product Configuration
Parameter | Specification |
|---|---|
Overall Length | 13,600 mm (40 ft); Optional extensions to 45 ft/48 ft |
Chassis Weight | 6,800 kg |
Payload Capacity | 24,000kg |
Main Beam Thickness | 10 mm high-tensile steel |
Axle Type | BPW/SAF/ZW18 t standard; 20 t optional |
Tire Size | 11R22.5 or 385/65R22.5, radial |
Suspension | Mechanical leaf spring (standard); Air (optional) |
Landing Gear | Two-speed manual leg (standard); Hydraulic (optional) |
Brakes | Dual-line air; ABS/EBS optional |
Lighting | LED, ECE/FMVS standard; Reflective tape optional |
Twist Locks | 4× ISO certified, manual (standard); hydraulic (opt.) |
Paint Layers | Shot blast → Zn primer → Epoxy mid-coat → Topcoat |
Frequently Asked Questions
What containers can this skeleton trailer carry?
A: Supports standard 20 ft and 40 ft ISO containers. Optional extended frame variants for 45 ft or 48 ft containers available.
Q2: What is the maximum payload capacity?
A: Standard 3-axle trailer can handle up to ~24–26 metric tons of payload, depending on axle rating and local road regulations.
Q3: Can I choose between air suspension and mechanical suspension?
A: Yes. Mechanical leaf spring suspension is default; air-ride suspension is available for smoother ride and adjustable chassis height.
Q4: Are hydraulic twist locks available?
A: Yes. Standard manual twist locks, or optional hydraulic powered twist locks for faster container loading/unloading.
Q5: What paint and coatings are used?
A: High-durability, corrosion-resistant polyurea or urethane topcoat over epoxy and zinc-rich primer—designed for harsh marine environments.
Q6: Can the trailer be branded or customized?
A: Absolutely. ZW Group offers OEM packaging options—company logo decals, custom paint schemes, and minor structural options per order.
Q7: What certifications do you provide?
A: ISO9001 & ISO14001 compliance standard. Additional certifications (e.g., CE, CCC) available on request.
Q8: What is the lead time for manufacturing and delivery?
A: Standard lead time is approximately 40–50 working days post-order confirmation, depending on configuration complexity and material availability.
Q9: How is the trailer packaged for international shipment?
A: Delivered on RO-RO ships or flat racks with wheel chocks, strapping, and optional shrink-wrap/covering.
Q10: What maintenance is required?
A: Regular grease of landing gear threads, brake system’s air line inspection every 6 months, check tire pressure and wear. Re-apply protective coatings as needed in high-abrasion zones.
