Detachable Gooseneck Lowbed Semi-Trailer

The China Jinfeng Detachable Gooseneck Lowbed Semi-Trailer is a heavy-duty transport vehicle developed by Jinfeng Special Vehicle for oversized cargo transportation. Adopting a concave lowbed structure, the deck height is low and close to the ground, effectively lowering the center of gravity for smoother driving, safer braking and better clearance through tunnels, culverts and other height-limited sections. The gooseneck features a detachable design with fast separation via hydraulic or mechanical means. When detached, the front of the deck opens completely, allowing large equipment such as excavators and crawler cranes to drive on or be positioned by direct lifting, greatly improving loading efficiency. The frame combines a through-type main beam with reinforcement ribs, providing strong load capacity and excellent resistance to torsion and bending. Configurations of 3–5 axles with mechanical leaf spring or air suspension are available, covering a payload of 30–120 tons. Widely used for highway transport of overweight and oversized cargo including excavators, wheel loaders, crawler cranes, rollers, large transformers and wind power tower sections, the trailer fully meets the heavy-haul logistics needs of the mining, infrastructure, energy and petrochemical industries. Manufactured strictly to national standards with fine workmanship, it has been widely applied in major projects at home and abroad, making it a reliable choice for construction machinery and special equipment transport.

Core Selling Points

1. Detachable Gooseneck: The gooseneck separates completely, leaving the front of the deck fully open. Large equipment can drive on and off by itself or be hoisted directly, eliminating large lifting machinery, doubling handling efficiency and saving labor costs.

2. Lowbed Structure: The low deck height and low center of gravity deliver stable driving and safe braking, easily passing tunnels, culverts and other height-restricted sections with better clearance.

3. Heavy-Haul Expert: With a payload of 30–120 tons, it transports excavators, crawler cranes, transformers, wind power equipment and other oversized cargo — one trailer solves your heavy-haul logistics challenges across a wide range of applications, and is the standard tool for oversized transport in mining, infrastructure and energy industries.

4. High-Strength Frame: Through-type main beam with reinforcement ribs resists torsion and bending, stays deformation-free under long-term heavy loads, with high reliability and long service life for worry-free heavy transport.

5. Flexible Customization: Axle number, suspension, tires and deck size can all be customized to suit different national regulations and complex working conditions, meeting the diverse needs of customers worldwide.

Material Introduction

The frame is made of Q345B high-strength alloy structural steel with a yield strength of 345 MPa and excellent tensile strength, offering about 50% higher load capacity than ordinary carbon steel. The main beams and key load-bearing parts can be upgraded with Q550, HG60 or other higher-strength steel to further reduce weight, increase payload and lower fuel consumption. The frame structure is optimized through finite element analysis for uniform stress distribution and more reliable load bearing. Production adopts advanced processes including CNC plasma cutting and automatic welding, ensuring uniform, full and reliable welds, with strict quality inspection on key parts to guarantee overall rigidity and durability. The frame surface is protected by three-layer treatment of sandblasting, epoxy primer and polyurethane topcoat, providing strong adhesion, corrosion resistance and wear resistance to withstand harsh environments of high temperature, high humidity and salt spray without rusting over long service. Axles are sourced from reputable brands such as FUWA, matched with high-quality leaf spring or air suspension, and the braking system adopts WABCO air brakes with ABS for sensitive, safe and reliable braking. With long service life, low maintenance cost and high overall cost-effectiveness, this trailer delivers outstanding value.