Lowbed Semi Trailer
Lowbed semi trailers are specifically designed to transport heavy, oversized machinery and equipment safely and efficiently. With their low deck height and sturdy construction, they provide excellent stability and support for heavy loads, making them ideal for industries such as construction, manufacturing, and logistics. Moreover, these trailers facilitate easy loading and unloading of large and bulky items, which significantly reduces handling time and improves operational efficiency. In addition, they are built with durable materials and advanced engineering to ensure reliable performance even in challenging conditions. Whether you’re transporting construction machinery, industrial equipment, or large vehicles, lowbed semi trailers offer a dependable and versatile solution for all your heavy haul needs.
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📌 Product Overview
Why Choose ZW Group Lowbed Semi Trailer?
At Shandong ZW Vehicle Group, we have accumulated over a decade of international experience in manufacturing and exporting lowbed semi trailers and heavy-duty transport equipment. As a trusted supplier to clients in more than 60 countries worldwide, we pride ourselves on delivering high-quality products, tailored solutions, and prompt, reliable after-sales service.
Our modern production facility covers 50,000m² and is equipped with advanced machinery. Furthermore, our team of over 200 skilled professionals is dedicated to providing durable and efficient transport solutions. Each ZW Group lowbed trailer is meticulously engineered to offer exceptional load capacity, outstanding stability, and excellent adaptability, making it ideal for safely transporting oversized and heavy cargo across various terrains.
In addition, with our strict quality control processes and comprehensive global logistics support, we ensure timely delivery and consistent product performance. As a result, customers can rely on us for dependable and efficient operations. Therefore, whether you need to transport construction machinery, large equipment, or other oversized loads, ZW Group is your dependable partner every step of the way.
Applications in Logistics & Industry
Lowbed semi trailers are extensively used in industries such as heavy haulage, construction, and equipment transportation due to their low deck height and strong load-bearing capacity. Specifically, these trailers are designed to carry oversized, heavy, and tall cargo, including construction machinery, industrial equipment, vehicles, and large structural components.
In the heavy haulage sector, lowbed trailers play a key role in facilitating the safe and stable transport of heavy equipment over long distances. Moreover, they allow for easy loading and unloading using cranes or ramps. Their low ground clearance not only enhances stability but also ensures smooth passage under bridges or on uneven roads, which is especially important when transporting tall or bulky loads.
Additionally, thanks to their robust structure and excellent adaptability, lowbed semi trailers provide flexible solutions that meet the complex demands of modern logistics. As a result, they have become a crucial asset for businesses that require reliable and efficient ways to move heavy and oversized cargo securely.
🛠️ Operation & Specifications
How to Load Heavy Equipment Using a Lowbed Semi Trailer?
Loading heavy equipment onto a lowbed semi trailer requires thorough planning and the appropriate handling tools to guarantee safety and efficiency. To begin with, ensure the trailer is parked on a flat, stable surface close to the loading site. Then, use cranes, forklifts, or ramps that are suitable for the size and weight of the equipment.
After that, carefully drive or lift the heavy machinery onto the low deck, positioning it centrally to maintain balanced weight distribution. In order to prevent any movement during transportation, secure the load firmly using heavy-duty chains, binders, or straps at multiple points. Before departure, it is essential to inspect all securing devices to confirm tightness and reliability.
Moreover, thanks to its low deck height and open design, the lowbed semi trailer simplifies the loading and unloading of oversized and heavy cargo. As a result, it also facilitates easier inspection and compliance with transport safety 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 take every measure to ensure that all lowbed semi trailers are professionally packaged and securely prepared for international transport. To begin with, each trailer undergoes a thorough quality inspection, partial assembly, and precise fastening before shipment to prevent any movement or damage during transit.
For overseas delivery, lowbed trailers are typically shipped using either containers (when size permits) or Ro-Ro (Roll-on/Roll-off) vessels, depending on the trailer dimensions and destination port capabilities. In addition, our experienced logistics team works closely with trusted freight partners to ensure safe, efficient, and on-time delivery to ports worldwide.
Moreover, we offer flexible and customized shipping solutions tailored to your needs. These include inland transport arrangements, port handling coordination, and customs clearance support. As a result, you can enjoy a smooth and worry-free purchasing experience from our factory to your final destination.
Key Parts Overview
Every ZW Group lowbed semi trailer is built with high-strength materials and precision-engineered components to ensure durability, performance, and safety under heavy-duty operations. Below are the key parts that define the trailer’s reliability:
Main Beam: Constructed from Q345 or T700 high-tensile steel, the main beam offers superior load-bearing capacity and structural integrity.
Axles: Heavy-duty axles (13T or 16T per axle) ensure stable weight distribution and reliable support for oversized cargo.
Suspension System: Equipped with mechanical leaf spring or air suspension for enhanced shock absorption and road adaptability.
Tires and Rims: Fitted with wear-resistant 12R22.5 tires and durable steel rims to ensure long-term road performance.
Loading Platform: The low deck height provides a stable loading area for tall or heavy equipment, with optional widening devices.
Hydraulic or Mechanical Ramps: Rear ramps allow efficient loading and unloading of construction machinery or other equipment.
Brake System: Dual-line air brake system with ABS (optional) ensures responsive and safe braking, even under heavy loads.
Gooseneck: Fixed or detachable gooseneck available, offering flexibility for different cargo types and loading scenarios.
Each component is selected and assembled with precision to meet international standards and withstand demanding transport tasks.
🔧 Design Advantages
Main Beam Features
The main beam is the structural backbone of every lowbed semi trailer. At ZW Group, we use high-strength steel such as Q345B or T700 to ensure maximum durability, stability, and load-bearing performance under heavy-duty applications. Below are the key features that set our main beams apart:
High-Tensile Steel Construction: The beam is made from Q345B or optional T700 steel, offering superior strength-to-weight ratio and resistance to deformation.
Welded I-Beam Design: Precision-welded I-beam structure enhances vertical strength and torsional rigidity, especially under dynamic loads.
Optimized Cross-Section: The beam’s cross-section is engineered for balanced stress distribution, reducing fatigue and increasing service life.
Reinforced Gooseneck Area: The front gooseneck section is reinforced to handle concentrated loads from heavy machinery.
Anti-Corrosion Treatment: All beams undergo sandblasting and anti-rust coating to improve surface protection and extend longevity.
Customizable Dimensions: Beam height and thickness can be tailored based on payload capacity and regional road requirements.
With strong engineering and strict quality control, our main beams ensure that each lowbed trailer can perform reliably across rough terrain, long distances, and oversized load conditions.
Tractor & Trailer Connection Compatibility
ZW Group lowbed semi trailers are engineered for seamless compatibility with a wide range of tractor heads, ensuring safe and efficient coupling under varying operating conditions. Our trailers conform to international standards, making them adaptable for both domestic and global logistics operations.
Standard Kingpin Sizes: Available in 2-inch or 3.5-inch kingpin options to match different fifth wheel configurations on tractor units.
Adjustable Fifth Wheel Height: The trailer’s platform and neck height are optimized to align with most tractor saddle heights, ensuring level load distribution and safe towing.
Air and Electrical Interfaces: Equipped with standardized air brake connectors and 7-pin or 15-pin electrical plugs for universal compatibility with tractor systems.
ABS and Brake Sync Support: Optional ABS integration and synchronized braking ensure enhanced safety and braking performance across connected units.
Gooseneck Flexibility: Fixed and detachable gooseneck designs allow compatibility with both conventional tractors and specialized heavy-haul units.
By offering flexible connection options and compliance with key international standards, ZW Group guarantees that every lowbed trailer integrates smoothly with your existing tractor fleet.
🏭 Factory & Customer Testimonials
Manufacturing Display
At Shandong ZW Vehicle Group, our manufacturing process combines advanced technology with skilled craftsmanship to produce high-quality lowbed semi trailers. Our 50,000m² factory is equipped with state-of-the-art machinery, including CNC cutting, robotic welding, and precision assembly lines.
To ensure durability, safety, and performance, each lowbed semi trailer undergoes rigorous quality control at every stage—from raw material inspection to final assembly. Furthermore, our team of over 200 experienced professionals is dedicated to maintaining strict manufacturing standards and driving continuous improvement.
In addition, we utilize premium materials such as Q345 steel and high-grade components sourced from trusted suppliers. This commitment to excellence guarantees that every lowbed semi trailer leaving our factory meets international standards and exceeds customer expectations.
Moreover, visitors to our manufacturing facility can witness the entire production process in action, which showcases our capability to deliver reliable and customized transportation solutions worldwide.
Customer Feedback
We greatly appreciate the positive feedback from our valued customers. In their reviews, they consistently commend the lowbed semi trailers for their excellent build quality, reliable performance, and adaptability to various transportation needs.
Moreover, many customers highlight the trailers’ robust construction, smooth operation, and ease of maintenance. As a result, these features help improve their logistics efficiency and significantly reduce downtime.
In addition, our dedicated after-sales support team ensures prompt responses and effective solutions, which fosters long-term trust and customer satisfaction.
Therefore, we remain fully committed to delivering high-quality lowbed semi trailers that meet diverse customer requirements across global markets.

📈 Case Studies & FAQs
Successful Delivery Cases
Shandong ZW Vehicle Group has a proven track record of successful deliveries of lowbed semi trailers to clients worldwide. Over the years, our trailers have been efficiently transported and deployed in various challenging environments, thereby demonstrating exceptional reliability and durability.
Whether for heavy machinery transport or large-scale logistics operations, our lowbed semi trailers consistently meet customer expectations by providing robust performance and excellent adaptability. Furthermore, we ensure every delivery is handled with the utmost care, strictly adhering to all quality and safety standards.
In addition, these successful cases clearly underscore our long-term commitment to excellence and highlight our ability to support diverse transport needs across global markets.
❓FAQ
Q1: What is a lowbed semi trailer?
A: A trailer with a low deck used to carry heavy and oversized cargo safely.
Q2: What sizes are available?
A:Lengths from 6 to 13 meters, widths 2.5 to 3 meters, and various axle options.
Q3: What cargo can it carry?
A:Heavy machinery, construction equipment, large pipes, transformers, and other oversized loads.
Q4:Why choose Shandong ZW’s lowbed trailers?
A: Strong Q345 steel frame, advanced production, reliable performance, and customizable designs.
Q5: How to maintain the trailer?
A:Check hydraulics, lubricate moving parts, maintain tire pressure, and prevent rust.
Q6: How long is the delivery time?
A:.Usually 30–60 days, depending on order details.
Q7:What after-sales services are offered?
A:Technical support, spare parts, repairs, and remote assistance.
Q8:How to get a quote?
A:Contact us via website or phone with your requirements for a detailed offer.