Lowbed Semi Trailer
Lowbed semi trailers are specially engineered for transporting heavy, oversized, and high-value machinery with maximum safety and stability. Thanks to their ultra-low deck height, these trailers effectively reduce overall transport height, which helps operators comply with road regulations while improving driving safety.
In addition, the reinforced steel structure provides strong load-bearing capacity, allowing the trailer to handle large construction equipment, industrial machinery, and oversized vehicles with confidence. As a result, lowbed semi trailers have become an essential transport solution in construction, manufacturing, energy, and heavy logistics industries.
Moreover, the open deck layout simplifies loading and unloading operations. Whether using ramps or cranes, operators can significantly reduce handling time and improve overall transport efficiency. For companies involved in heavy haulage, lowbed semi trailers offer a dependable, flexible, and long-term transport solution.
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📌 Product Overview
Why Choose ZW Group Lowbed Semi Trailer?
At Shandong ZW Vehicle Group, we bring more than 10 years of experience in manufacturing and exporting lowbed semi trailers and heavy-duty transport equipment. Today, customers in over 60 countries rely on our products for stable, long-distance, and high-load transport operations.
To support consistent quality, our modern factory covers 50,000㎡ and integrates CNC cutting machines, robotic welding systems, and precision assembly lines. Meanwhile, our team of more than 200 skilled technicians focuses on structural strength, dimensional accuracy, and long service life.
Furthermore, each ZW Group lowbed trailer is designed to deliver high payload capacity, excellent stability, and strong adaptability to different road conditions. Through strict quality control and professional export logistics support, we ensure reliable performance and on-time delivery worldwide.
Therefore, whether you transport construction machinery, industrial equipment, or oversized cargo, ZW Group remains a dependable partner throughout the entire project lifecycle.
Applications in Logistics & Industry
Lowbed semi trailers play a vital role in modern heavy-haul logistics due to their low deck design and strong structural support. Specifically, they are widely used for transporting oversized, overweight, and tall cargo that standard trailers cannot handle safely.
For example, common transport applications include:
Construction machinery such as excavators, bulldozers, and cranes
Industrial equipment and production machinery
Large vehicles and engineering modules
Steel structures, transformers, and project cargo
Moreover, the low platform height improves overall stability and allows safer passage under bridges or uneven terrain. At the same time, the strong chassis structure ensures reliable performance during long-distance transport.
As logistics demands become more complex, lowbed semi trailers continue to provide flexible and efficient solutions for heavy transport operations.
🛠️ Operation & Specifications
How to Load Heavy Equipment Using a Lowbed Semi Trailer?
Before loading, park the lowbed semi trailer on firm and level ground near the work area. This step helps maintain stability throughout the entire loading process.
Next, use appropriate loading tools such as ramps, cranes, or forklifts according to the equipment size and weight. Carefully move the machinery onto the low deck and position it centrally to achieve balanced axle loading.
After positioning, secure the cargo firmly using heavy-duty chains, binders, or straps at multiple fixing points. Before departure, always inspect all fasteners to confirm proper tension and safety.
Thanks to the low deck height and open structure, the trailer simplifies both loading and unloading while also supporting easier inspection and compliance with transport regulations.
Basic Specifications Table
4 Axle Lowbed Semi Trailer Design for Container Transport
| Item | Specification |
|---|---|
| Trailer Type | 4 Axle Lowbed Semi Trailer (Flat type) |
| Overall Length | Approx. 13,100 mm |
| Overall Width | 2,500 mm |
| Platform Height | 1,170 mm (approx.) |
| Loading Deck Length | Approx. 8,015 mm |
| Axle Configuration | 4 axles (mechanical or air suspension) |
| Payload Capacity | 60–80 tons (customizable) |
| Container Locks | Suitable for 1×40ft or 2×20ft |
| Kingpin | 2” or 3.5” (optional) |
| Suspension System | Mechanical leaf spring or air suspension |
| Tire Specification | 12R22.5 or optional |
| Braking System | Dual-line air brake with ABS (optional) |
| Material | Q345B high-tensile steel |
Heavy Equipment 4 Axle Lowbed Trailer with Rear Loading Ramps
| Item | Specification |
|---|---|
| Trailer Type | 4 Axle Lowbed Semi Trailer with Ramps |
| Overall Length | 13,850 mm |
| Overall Width | 2,550–3,150 mm (expandable) |
| Loading Deck Height | Approx. 850 mm |
| Ramp Length | 3,000 mm |
| Axle Configuration | 4 axles (mechanical/air suspension) |
| Payload Capacity | 80–100 tons (customized) |
| Ramp Type | Mechanical or hydraulic |
| Suspension System | Mechanical leaf spring or air suspension |
| Tire Specification | 12R22.5 or per client request |
| Braking System | Dual-line air brake with ABS |
| Gooseneck Type | Detachable or fixed (optional) |
| Material | Q345 or T700 high-strength steel |
Robust 4 Axle Lowbed Trailer for Oversized Equipment Transport
5 Axle Lowbed Semi Trailer for Ultra-Heavy Equipment Transport
📦 Delivery & Components
Package & Shipping Methods
At Shandong ZW Vehicle Group, we place strong emphasis on safe international delivery. Before shipment, each lowbed semi trailer undergoes complete inspection, partial disassembly if required, and secure fastening to prevent movement during transport.
Depending on trailer size and destination port conditions, we arrange shipment by:
Container transport (when dimensions allow)
Ro-Ro (Roll-on/Roll-off) vessels for large units
In addition, our experienced logistics team coordinates inland transport, port handling, and customs documentation. As a result, customers receive a smooth and worry-free delivery process from factory to final destination.
Key Parts Overview
Each ZW Group lowbed semi trailer integrates high-strength materials and carefully selected components to ensure long-term reliability.
Main Beam
Manufactured from Q345 or optional T700 high-tensile steel, offering excellent load-bearing capacity.
Axles
Heavy-duty 13T or 16T axles provide stable weight distribution for oversized cargo.
Suspension System
Mechanical leaf spring or optional air suspension enhances road adaptability.
Tires and Rims
Durable 12R22.5 tires with reinforced steel rims support long-distance operation.
Loading Platform
Low deck height improves stability and allows optional widening devices.
Ramps
Hydraulic or mechanical rear ramps enable efficient machinery loading.
Brake System
Dual-line air brake system with optional ABS ensures reliable braking performance.
Gooseneck
Available in fixed or detachable designs for flexible loading requirements.
Each component works together to support demanding heavy-haul applications.
🔧 Design Advantages
Main Beam Features
The main beam serves as the structural foundation of the lowbed semi trailer. ZW Group applies advanced engineering to ensure long-term strength and stability.
High-tensile Q345B or T700 steel construction
Precision welded I-beam structure
Optimized stress distribution design
Reinforced gooseneck area for concentrated loads
Sandblasting and anti-corrosion coating
Customizable beam height and thickness
This design allows the trailer to perform reliably on rough roads, uneven terrain, and long-distance routes.
Tractor & Trailer Connection Compatibility
ZW Group lowbed semi trailers are designed for broad compatibility with global tractor units.
2-inch or 3.5-inch kingpin options
Optimized fifth wheel height alignment
Standard air brake and electrical connectors
Optional ABS synchronization
Compatible with 6×4 and 6×2 tractor heads
As a result, operators can easily integrate the trailer into existing fleets without modification.
🏭 Factory & Customer Testimonials
Manufacturing Display
ZW Group operates a modern manufacturing system combining automation with skilled craftsmanship. Our facility includes CNC cutting lines, robotic welding stations, and precision assembly workshops.
Throughout production, quality inspections occur at every stage—from raw material selection to final performance testing. In addition, we use certified steel materials and globally recognized components to ensure consistent reliability.
This manufacturing process enables us to deliver both standard and customized lowbed semi trailers that meet international transport standards.
Customer Feedback
Customers worldwide consistently recognize ZW Group lowbed semi trailers for:
Strong structural durability
Stable driving performance
Long service life
Easy maintenance
Reliable after-sales support
These advantages help logistics companies reduce downtime and improve operational efficiency over the long term.
📈 Case Studies & FAQs
Successful Delivery Cases
ZW Group has successfully delivered lowbed semi trailers to construction, mining, and heavy logistics projects across multiple regions.
In real operating environments, our trailers demonstrate excellent stability, strong load performance, and dependable durability. Each delivery reflects our commitment to quality, safety, and customer satisfaction.
❓FAQ
Q1: What is a lowbed semi trailer?
A1: A low-deck trailer designed for transporting heavy and oversized cargo safely.
Q2: What sizes are available?
A2: Lengths from 6–13 meters, widths 2.5–3 meters, with multiple axle options.
Q3: What cargo can it carry?
A3: Construction machinery, industrial equipment, transformers, large vehicles, and project cargo.
Q4: Why choose ZW Group lowbed trailers?
A4: High-strength steel structure, advanced manufacturing, customization, and proven export experience.
Q5: How should the trailer be maintained?
A5: Regular inspection of hydraulics, lubrication of moving parts, tire pressure checks, and corrosion prevention.
Q6: What is the delivery time?
A6: Usually 30–60 days depending on configuration.
Q7: What after-sales services are available?
A7: Technical support, spare parts supply, maintenance guidance, and remote assistance.
Q8: How can I get a quotation?
A8: Contact us through the website or send your requirements for a detailed offer.