





3 Axles Container Skeletal Semi Trailer Manufacturer
5.8 ton tare skeletal chassis carrying 40 tons on submerged arc welded beams
The 3-axle container skeletal semi trailer adopts high-strength steel to construct a frame-type chassis. By optimizing the I-beam section structure (such as the flange plate design of 14mm at the top and 16mm at the bottom) and the automatic submerged arc welding process, while ensuring the torsional rigidity of the main beam, a 10% to 15% reduction in self-weight compared to traditional models.
- Length
- 12,500mm
- Width
- 2,480mm
- Height
- 1,480mm
- Kingpin location
- 700mm 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
- Container fleets where tare weight directly sets the revenue per move
- ISO container operators running high mileage on 40-foot boxes
Problems It Solves
Heavy chassis cut net payload
An optimised I-beam section and automatic submerged arc welding cut self-weight by 10% to 15% against traditional models, with tare around 5,800 kg.
Light chassis flex in torsion
The 14 mm top and 16 mm bottom flange design keeps main beam torsional rigidity while removing weight.
What You Get For the Money
40,000 kg payload, 45,800 kg G.V.W.R.
12,500 × 2,480 × 1,480 mm with a 7,560 + 1,310 + 1,310 mm axle spread.
Fully listed running gear
Three FUWA 13-ton axles, six T30/30 spring brake chambers, twelve Linglong 12R22.5 tyres and a bolted 2 inch SAE kingpin 700 mm from the bolster face.
Spare wheel carrier fitted
One carrier plus white and red side marker lamps as standard.
Technical Description
Technical Construction
Take a typical 40-foot model as an example. Its no-load weight can be controlled within 6.5 tons. Combined with a three-axle 13-ton class axle configuration, the total load capacity exceeds 50 tons, significantly increasing the proportion of net weight of goods in a single trip and directly reducing fuel consumption and toll costs per ton-kilometer.
Build and Finish
The twist lock device supports the rapid fixation of 1×20-foot, 2×20-foot, or 1×40-foot containers. Some high-end models are equipped with hydraulic lifting systems, which can complete the transshipment of containers of different specifications within 10 minutes.
Operating Detail
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.
Manufacturing Notes
Our products are not only popular across the country but also exported in bulk to over 30 countries and regions in Southeast Asia, Africa, the Middle East, South America, etc., earning the trust of customers worldwide. Moreover, we offer comprehensive after-sales service to ensure you have no worries. Choosing SINOHENG means choosing quality, choosing professionalism, and choosing peace of mind.
3 Axles Container Skeletal Semi Trailer Manufacturer 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 | 12,500mm |
|---|---|
| Width | 2,480mm |
| Height | 1,480mm |
| Kingpin location | 700mm from the front face of the front bolster |
| Axle spacer | 7,560mm+1,310mm+1,310mm |
| Landing gear location | 2,400mm behind the kingpin location |
| Payload | 40,000kg |
| Tare weight | Approx. 5,800kg |
| G.V.W.R. | Approx. 45,800kg |
| USE | 1*20’’(Container), 2*20’’(Container), 1*40’’(Container) |
| Main beam | Material Q700. Fabricated “H” beam height 500mm, Top flange thickness 14mm, Middle web thickness 8mm, Bottom flange thickness 16mm |
| Kingpin | 2” SAE Kingpin, bolted in type |
| Twist lock | 12 sets of twist locks |
| 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, polyurethane top coat. Total DFT not less than 80um |
| Suspension | Mechanical suspension, leaf spring 13mmx90mm |
| Axle | FUWA axle, 3pcs*13 ton capacity |
| Brake system | Dual line pneumatic brake, SAE hose and connector |
| Brake chamber | 6 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 | JTJS brand 28T two-speed telescopic manual landing gear |
| Voltage | 24 Volt |
| Receptacle | 7-way socket SAE standard |
| 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 pcs |
| Tool box | 1 pc |
This Build in the Factory








How It Compares
Against our 12.5 m flatbed on the same running gear, the skeletal saves close to two tonnes but carries only containers. If you take general cargo backhauls, the flatbed earns more.
Operating Notes
- Confirm twist locks are engaged and pinned before every move.
- Inspect the main beam welds annually given the high mileage this asset runs.
- Keep the spare wheel carrier secured; it is a common loss item.
Every vehicle ships with an illustrated operation manual covering coupling, braking and turning technique.
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Competitive Container Skeleton Semi Trailer Price
Light 12.5 m skeletal chassis specified for the lowest cost per container move
View specification →Questions About This Trailer
Why does tare weight matter so much here?
On container work you are paid per box, and gross weight is capped. Every kilogram saved on the chassis is a kilogram of cargo you can legally carry.
Is the lighter chassis less durable?
The weight comes out of section optimisation and welding process, not steel grade or thickness where it carries load. Flange plates remain 14 mm and 16 mm.
Does it carry 20 ft boxes?
Confirm the box sizes you run with your order so twist lock positions are set correctly.
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.