





40FT Fence Semi Trailer for Sale
40 ft fence trailer with 1,800 mm sectioned sides for mixed cargo heights
The 40FT Fence Semi Trailer is a semi-trailer specially designed for efficient cargo transportation, with a solid and durable overall structure. The vehicle body dimensions are 12,400mm in length and 2,500mm in width. It is equipped with a fence design of 1,800mm that can be flexibly divided into sections (600mm+100mm+400mm+100mm+400mm), which can not only meet the loading requirements of goods of different sizes, but also improve the loading and unloading efficiency by adjusting the height of the fence It is especially suitable for transporting bulk cargo, agricultural products or goods that require lateral fixation.
- Length
- 12,400mm
- Width
- 2,500mm
- Drop Side Height
- 1800mm (600mm+100mm+400mm+100mm+400mm)
- Kingpin location
- 1,045mm from the front face of the front bolster
Built at SINOHENG Trailer Factory, Jinan, Shandong, China. Exported to 30+ countries across Southeast Asia, Africa, the Middle East and South America.
Operators This Trailer Is Built Around
- Bulk cargo operators who change side height between loads
- Agricultural and general freight fleets needing lateral cargo restraint
Problems It Solves
One fixed fence height suits only one cargo
The 1,800 mm fence divides into sections of 600 + 100 + 400 + 100 + 400 mm, so the height matches the load instead of the other way round.
Loose cargo shifts sideways in transit
The fence design provides lateral fixation and stops product spilling on rough sections.
What You Get For the Money
40,000 kg payload, 8,000 kg tare
12,400 × 2,500 mm with a G.V.W.R. of about 48,000 kg.
Q345B high-strength main beam
Supported by 16# channel side beams and ten 13 × 90 mm leaf springs.
Complete specification
Three FUWA 13-ton axles at 7,200 + 1,310 + 1,310 mm, four T30/30 spring brake chambers, twelve Linglong 12R22.5 tyres and white and red side marker lamps.
Technical Description
Technical Construction
The main beam of this model is made of Q345B high-strength steel, featuring a 500mm high “H” shaped structure. Combined with a thickened design of 14mm top plate, 8mm web plate, and 16mm bottom plate, it ensures excellent bending resistance under a rated load of 40,000kg. Supplemented by 16# channel steel side beams, 10# channel steel crossbeams, and 3mm thick patterned steel plate platforms, a multi-support system is formed, effectively dispersed with the impact force during transportation.
Build and Finish
This model achieves a balance between a self-weight of 8,000kg and a total weight of 48,000kg through lightweight design, maximizing the utilization rate of cargo space within the compliance range. The suspension system adopts a standard mechanical suspension with 10 13mm×90mm leaf springs, paired with 3 13-ton Mingyue brand axles and 12 Linglong 12R22.5 tires, forming a stable load-bearing structure. Combined with a dual-pipeline pneumatic braking system, 40L dual air tanks, and Wabco emergency relay valves, it ensures rapid and reliable braking response.
Operating Detail
In terms of detailed design, the 28-ton two-speed manual outriggers, 24V electrical system, 7-pin standard sockets, and other configurations meet the basic operation requirements. Meanwhile, the SA2.5 grade shot blasting treatment and the application of anti-rust primer + topcoat with a thickness of no less than 80μm enhance the vehicle’s corrosion resistance in complex environments.
Manufacturing Notes
SINOHENG Trailer Factory is an enterprise specializing in the production and sales of trailers, dedicated to providing customers with high-quality and high-performance trailer products. We use high-strength steel and optimized design to ensure that the products maintain high load-bearing capacity while being lightweight, meeting customers’ dual demands for transportation efficiency and cost control.
40FT Fence Semi Trailer for Sale Specification Sheet
Figures below are the published specification for the standard build. Anything not listed is confirmed on the approval drawing before production, and we mark unknowns as TBC rather than estimating them.
| Length | 12,400mm |
|---|---|
| Width | 2,500mm |
| Drop Side Height | 1800mm (600mm+100mm+400mm+100mm+400mm) |
| Kingpin location | 1,045mm from the front face of the front bolster |
| Axle spacer | 7,200mm+1,310mm+1,310mm |
| Payload | 40,000kg |
| Tare weight | Approx. 8,000kg |
| G.V.W.R. | Approx. 48,000kg |
| Main beam | Material Q345B. Fabricated “H” beam height 500mm, Top flange thickness 14mm, Middle web thickness 8mm, Bottom flange thickness 16mm |
| Side beam | 16# channel steel |
| Platform | 3mm thick chequer plate with supporting channel |
| Cross beam | 10# channel steel |
| Kingpin | 2” Kingpin, bolted in type |
| Welding standard | All welding is to be done by a qualified welder per the applicable national standard |
| Painting | Shot blast at Standard SA 2.5 before application of primer, water paint top coat. Total DFT not less than 80um |
| Suspension | Standard mechanical suspension, 10 pcs leaf spring 13mmx90mm |
| Axle | FUWA brand axles, 3pcs*13 ton capacity |
| Brake system | Dual line pneumatic brake, with hose and connector |
| Brake chamber | 4 units T30/30 spring brake chambers |
| Air tank | 40L, 2 pcs, China |
| Emergency relay valve | Wabco relay valve |
| Tire | Linglong brand, 12R22.5, 12 pcs |
| Rim | 9.00-22.5 steel disc wheel,10 holes ISO, 12 pcs |
| Landing gear | 28T two-speed telescopic manual landing gear |
| Voltage | 24 Volt |
| Receptacle | 7-way socket standard, China |
| Front marker lamp | White |
| Side marker lamp | White & Red |
| Rear lamp | Red |
| Turn signal lamp | Amber |
| Reflector | Per customer requirement |
| Mud guard | Steel mud guard |
| Spare wheel carriers | 1 sets |
| Tool box | 1 pc |
This Build in the Factory








How It Compares
Against the 17.5 m fence semi trailer, this 40-foot build is shorter and easier to manoeuvre. Against the dropside, the higher sectioned fence carries far more volume of light cargo.
Operating Notes
- Lock each fence section after adjusting the height.
- Sheet light cargo even inside a full-height fence.
- Check brake chamber travel and marker lamps at every pre-trip inspection.
Every vehicle ships with an illustrated operation manual covering coupling, braking and turning technique.
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View specification →Questions About This Trailer
Can I remove only the upper fence sections?
Yes, that is the point of the sectioned design. Drop the upper sections for forklift access and keep the lower boards in place for containment.
Where is the kingpin set?
1,045 mm from the front face of the front bolster, bolt-in type, 2 inch.
Is this the same as your drop side model?
No. The dropside runs 800 mm panels with the same 12,400 mm length. This model runs a 1,800 mm sectioned fence for higher volume cargo.
Do you ship to my country?
SINOHENG exports in bulk to 30+ countries and regions across Southeast Asia, Africa, the Middle East and South America. Send your destination port with the enquiry and we will quote delivery with the trailer.
Ask for a Drawing Before You Commit
We confirm dimensions, axle loads and coupling height on an approval drawing before any steel is cut, so the trailer is legal and couples to your tractors.