Rugged & Durable
Built with high-strength steel and branded components to withstand tough road conditions
Built to Last. Priced to Win
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.
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 LocksEngineered by Mark W.
Lead Structural Engineer
Kales Container Transport DivisionWhat 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.
Kales 3-Axle 40ft Skeletal Container Chassis Trailer 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:
450mm/500mm Deep I-Beam for Maximum Vertical Stiffness 🔬 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.
ISO Standard Twist Lock Double-Layer Gooseneck Reinforcement 🌍 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.
🔍1. X-Ray Inspection
Detecting internal welding defects (air bubbles, micro-cracks) invisible to the naked eye.
⚖️2. Physical Load Testing
Prototypes undergo heavy physical loading to ensure main beam deflection remains within safety limits.
🛑3. Brake Response Test
Rigorous testing of WABCO valves for rapid air response and emergency braking effectiveness.
📏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
Reinforced Suspension Hanger JOST Landing Gear Heavy Duty Tires & Mudguards 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.
🏭
Factory Direct Pricing:Buy directly from Kales Vehicle Co., Ltd. with zero middleman markup.📜
ISO Certified Production:Our advanced manufacturing process adheres to strict ISO 9001 quality standards.🌍
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*Professional Semi Trailer Manufacturer | Kales Vehicle Co., Ltd.
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Frequently Asked Questions
Can you customize the trailer design according to my requirements?
Yes, absolutely. As a manufacturer, we have a professional engineering team. We can customize the dimensions, loading capacity (e.g., 60 tons, 80 tons), axle brand (FUWA/BPW), suspension type, and paint color to suit your specific road conditions and transport needs.
What material do you use for the main beam?
We use high-strength Q355 or T700 steel for the main beam. This ensures the trailer is lightweight yet strong enough to withstand heavy loads and rough road conditions in Africa and Central Asia.
What is your production time?
Standard models usually take 15-20 working days after receiving the deposit. For urgent orders, we can even shorten it to 10 days. We will keep you updated with photos and videos during production.
What are your payment terms?
Our standard term is T/T (30% deposit, 70% balance before shipping). For large orders, L/C (Letter of Credit) is also negotiable.
Do you provide a warranty?
Yes, we provide a 24-month warranty for the main beam. For spare parts (like brake pads, lights), we supply original parts at factory cost for the lifetime of the trailer.
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.
Container Shipping
Container loading of Kales semi trailer for export, ensuring secure fastening and space optimization.
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.
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Since 2012 · Expert in Heavy Haulage
