Container Shipping
Container loading of Kales semi trailer for export, ensuring secure fastening and space optimization.
Factory Direct ProductContainer & Bulk TransportSkeletal Trailer
40ft Skeletal Trailer (Container Chassis) for Sale | 3 Axles
The KALES 3-axle 40-foot container chassis is specifically designed for maritime container and cargo transportation, ensuring both safety and efficient container handling. The welded container trailer is built to withstand the harsh conditions that semi-trailer container skeletal trailers typically face, ensuring a long service life. The main beam structure is both lightweight and robust, designed to handle heavy loads.
Built for export buyers who need route-matched trailers, durable structure, and clear factory support before shipment.
Trailer Type
Semi trailer
Axles
Multi-axle options
Payload
Configured to project requirement
Rugged & Durable
Built with high-strength steel and branded components to withstand tough road conditions
Exceptional Support
From customization to maintenance, we provide full lifecycle support for your fleet
FAST DELIVERY
Optimized production lines to ensure on-time delivery for your orders
Product Overview
40ft Skeletal Trailer (Container Chassis) | T700 Steel
Engineered for Port Logistics. Certified for Safety.
Container Size: 20ft / 40ft | Payload: 40-60 Tons | Locks: 12 ISO Twist Locks
Engineered by Mark W.
Lead Structural Engineer
Kales Container Transport Division
Lead Structural Engineer
Kales Container Transport Division
What is a Skeletal Trailer?
A skeletal semi-trailer (also known as a container chassis) is a specialized, heavy-duty transport vehicle designed primarily for intermodal logistics. Characterized by its bare steel frame and ISO twist locks, it provides the structural backbone to securely load, lock, and transport 20ft, 40ft, and 45ft shipping containers between ports, rail yards, and warehouses.
1. The Science Behind Our Durability
In container transport, the chassis is the backbone. Standard skeletal trailers often suffer from metal fatigue and cracking after just two years of rough port operations. Kales solves this fundamental issue through advanced engineering:
🔬 T700 Steel Upgrade
We don’t use standard carbon steel. The main beam is forged from T700 High-Strength Steel, boasting a yield strength 2.5x higher than normal Q345 steel. It carries up to 60 tons without permanent deformation.
🤖 Robot Welding Tech
Hand welding causes inconsistencies. Kales uses Automatic Submerged Arc Welding Robots. This ensures perfect seam penetration, eliminating “stress concentration points” where structural cracks begin.
🛡️ Stress Relief Process
Before painting, every chassis undergoes intense Shot Blasting. This removes rust and relieves internal metal stress created during welding heating, extending the fatigue life of the entire frame.
2. Built for Real-World Port Logistics
We understand that port operations and road conditions in Africa, Southeast Asia, and South America can be punishing. Our design reflects on-the-ground reality:
- 📦 Versatile 12-Lock System: Equipped with 12 sets of ISO Twist Locks, allowing you to legally and safely transport one 40ft container, two 20ft containers simultaneously, or a single heavy 20ft container mounted in the center for optimal weight balance.
- 🏗️ Double-Plate Gooseneck: We add a double-layer steel plate at the gooseneck. This is the highest stress point during heavy braking. Our reinforcement completely prevents the “gooseneck sag” issue prevalent in cheaper chassis.
- 🌍 Global Maintainability: By using globally recognized components like JOST Landing Gear and WABCO Valves, you can easily source spare parts anywhere, minimizing fleet downtime.
🌍 Field Record: Mombasa Port Operations
“Our logistics company moves heavy bulk containers out of Mombasa port daily. The potholes and speed bumps used to crack our old chassis frames within months. Since switching to the Kales T700 skeletal trailers, we haven’t had a single welding failure. The central mounting twist locks are incredibly secure when we haul overweight 20ft containers inland.”
— Operations Director, East Africa Port Logistics
3. The Kales Quality Control Protocol
We don’t just build trailers; we verify them. Every Kales 40ft Chassis must pass a strict 4-step inspection protocol before export.
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1. X-Ray Inspection
Detecting internal welding defects (air bubbles, micro-cracks) invisible to the naked eye.
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2. Physical Load Testing
Prototypes undergo heavy physical loading to ensure main beam deflection remains within safety limits.
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3. Brake Response Test
Rigorous testing of WABCO valves for rapid air response and emergency braking effectiveness.
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4. Laser Alignment
Ensuring all axles are perfectly aligned via laser to prevent uneven tire wear and fuel wastage.
4. Technical Specifications
| Feature | Specification Details |
|---|---|
| Model | Kales 3-Axle 40ft Skeletal Trailer (Container Chassis) |
| Dimension | 12,360 × 2,500 × 1,520 mm (Standard ISO Size) |
| Payload | Standard: 40T / Heavy Duty: 60T (Config dependent) |
| Main Beam | T700 High Strength Steel (Height: 450mm-500mm) |
| Axles | 3 Axles (13T/16T) – Brands: FUWA / KALES / BPW / SAF |
| Tires | 12 units (12.00R22.5 Radial or 315/80R22.5 Vacuum) |
| Suspension | Mechanical (Reinforced Leaf Spring 10pcs) or Air Suspension |
| Twist Locks | 12 Sets (Screw Type or Lifting Type for ISO Containers) |
| King Pin | JOST 2.0″ (50#) or 3.5″ (90#) – Bolted/Welded Type |
| Landing Gear | JOST Brand D200T (28T Lifting Capacity) |
| Brake System | WABCO Emergency Valve + 6 Double Air Chambers |
5. Visual Inspection Gallery
6. Frequently Asked Questions (FAQ)
Can this skeletal trailer carry two 20ft containers safely?
Yes. The Kales 40ft chassis is equipped with 12 high-strength twist locks and a reinforced T700 main beam specifically designed to handle the concentrated, uneven load of two fully loaded 20ft containers (totaling up to 40-50 tons) simultaneously without bending.
How do you ship this trailer to save on ocean freight costs?
We highly recommend utilizing the Stacking Method. We can safely stack 3 or 4 chassis trailers together as a single bundled unit for Bulk Cargo or Ro-Ro shipment. This drastically reduces the total shipping volume and can save you up to 30% on ocean freight per unit.
Do you offer a structural warranty?
Yes. We provide a comprehensive 1-Year Structural Warranty covering the main beam and chassis welding. We also supply a “Lifecycle Spare Parts Service” to ensure you can easily procure replacement parts like WABCO brake shoes or JOST twist locks years down the line.
🤝 Partner with a Verified Manufacturer
Reliable Production. Global Export.
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Factory Direct Pricing:Buy directly from Kales Vehicle Co., Ltd. with zero middleman markup.
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ISO Certified Production:Our advanced manufacturing process adheres to strict ISO 9001 quality standards.
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Global Export Experts:We successfully export to over 30 countries, handling all customs documentation seamlessly.
Ready to Upgrade Your Port Fleet?
Contact Kales Vehicle today for customized specs and factory pricing.
Within 24 Hours, You’ll Receive:
✅ Detailed Custom Spec Sheet | ✅ FOB/CIF Quote | ✅ Stacked Shipping Plan
✅ Detailed Custom Spec Sheet | ✅ FOB/CIF Quote | ✅ Stacked Shipping Plan
*Professional Semi Trailer Manufacturer | Kales Vehicle Co., Ltd.
Customization
Built around your market requirement
- Adjust trailer dimensions, payload target, and axle layout to fit your cargo profile.
- Select suspension, tire specification, landing gear, ramps, sidewalls, or tanker compartments as needed.
- Choose structural details such as steel thickness and reinforcement based on road conditions.
- Apply OEM branding, company colors, and market-specific safety markings before shipment.
Shipping & Delivery
Practical export planning from factory to destination
- Shipment can be arranged by bulk vessel, Ro-Ro, container, or sea-road intermodal solutions depending on trailer size and destination.
- Standard stock units can move quickly, while custom production is scheduled according to quantity and configuration complexity.
- We support major trade terms including FOB, CIF, and CFR, and prepare export documents for customs clearance.
- Before shipment, photos, videos, and pre-delivery inspection records can be shared for confirmation.
Quality & After-Sales
Lower risk before and after delivery
- Each trailer goes through factory inspection for welding quality, structural alignment, and key running components before delivery.
- We support certification and export document preparation according to your destination market requirements.
- A 12-month warranty is available for the main beam and key components, with spare parts and remote technical support after delivery.
Cooperation Flow
How the order will actually move
Share your target market, usage scenario, and preferred configuration.
Receive our model recommendation, specification review, and factory quotation.
Confirm production, inspection, shipment route, and export documents.
Stay supported after delivery with spare parts and remote assistance.
Logistics Display
Flexible Logistics Solutions: Safe & Cost-Effective Delivery
At Kales Vehicle, we understand that shipping costs are a major part of your investment. That’s why we offer multiple transport options tailored to your destination and budget.
Whether you choose Container Shipping for protection, Ro-Ro (Roll-on/Roll-off) for speed, or Bulk Cargo for cost savings, we ensure every trailer is handled with care. All vehicles undergo rigorous wax spraying and are covered with waterproof tarpaulins before shipment to prevent seawater corrosion during transit. We calculate the optimal stacking method (e.g., 3 units stacked together) to help you minimize freight costs.
Ro-Ro Cargo
Ro-Ro shipping method for Kales commercial trailers, driving directly onto the vessel for maximum safety.
Bulk Cargo Ship
Bulk cargo transport of stacked Kales semi trailers with wax spraying protection against seawater corrosion.
Product FAQ
Questions buyers usually ask before ordering
Can this trailer be adapted for rough roads or overloaded routes?+
Yes. We can review your road conditions, legal load limits, and cargo type to recommend reinforcement, suspension, tires, and structural changes before production.
What information do you need for an accurate trailer quote?+
The fastest quote comes when you share cargo type, target market, preferred dimensions, expected payload, and any special configuration requirements.
How is this trailer usually shipped internationally?+
Depending on model size and destination, we can arrange bulk vessel, Ro-Ro, container, or multimodal sea-road transport and recommend the most practical route.
Do you support OEM branding and local compliance requests?+
Yes. We can add your logo, paint scheme, markings, and selected configuration changes while aligning the build with the compliance needs of your market.
Related Products
Compare nearby models before you decide
Request a Quote
Need a factory quote for this trailer model?
Share your market, cargo scenario, and preferred configuration. We will recommend the right build and send a workable export quotation.