1. Product Overview
The 9-axle low-bed trailer with a retractable gooseneck is a high-performance special transport equipment designed for the transport of extra-long and extra-heavy goods. Its core features include a retractable cargo platform and gooseneck structure, which can flexibly adapt to the needs of goods of different sizes while ensuring transportation stability and safety. It is suitable for large-scale logistics fields such as wind power equipment, large machinery, and bridge components.
2. Core functions and design highlights
Retractable cargo platform:
The cargo platform adopts a modular design and can be extended longitudinally by hydraulic or mechanical devices. The maximum extension length can reach more than 40 meters to meet the loading needs of extra-long goods. The retractable part is equipped with a high-strength locking mechanism to ensure stability and no displacement during transportation.
Gooseneck structure:
The gooseneck design reduces the front height of the trailer, optimizes the center of gravity distribution, and improves the matching of the tractor and trailer, reduces the turning radius, and enhances the passability of complex road conditions.
9-axle distributed load-bearing:
The 9-axle layout (usually 3 sets of independent suspension bridges) achieves uniform load distribution, and the single-axle load meets regulatory requirements, with a maximum total mass of more than 200 tons. Each axle is equipped with air suspension or leaf spring to adapt to different road conditions.

3. Technical parameters
Load capacity: 80-200 tons (depending on the configuration)
Cargo platform size:
Basic length: 12-18 meters
Maximum length after pulling: 40-50 meters
Width: 3-3.5 meters (customizable)
Cargo platform height: 0.8-1.2 meters (low flat design)
Axle configuration: 9 axles (each axle with dual tires, some can be lifted)
Suspension system: air suspension/leaf spring (optional)
4. Application scenarios
Wind power equipment (such as blades, towers)
Construction machinery (excavators, shield machines)
Petrochemical equipment (reaction tanks, pressure vessels)
Bridge and steel structure transportation
5. Safety and compliance
Complies with domestic and international heavy-duty trailer regulations and standards such as GB1589;
Standard ABS anti-lock braking system, LED warning lights, reflective signs;
Optional GPS monitoring, tire pressure detection and other intelligent systems.
6. Advantages Summary
Flexibility: The pull-out design can adapt to the variable cargo size;
High load-bearing capacity: The 9-axle configuration meets the overweight requirements;
Safety: Combination of structural reinforcement and intelligent protection;
Economic efficiency: Modular design reduces the cost of empty return trip.
If you need more detailed configuration parameters or customized solutions, it is recommended to consult a professional special trailer manufacturer.