





Reliable Flatbed Trailer Supplier
12.5 m flatbed with 3 mm checkered floor and fully listed running gear
As a trusted Flatbed Trailer Supplier, we focus on providing high-quality and heavy-duty flatbed trailers for global logistics, freight transportation, and infrastructure projects. Whether you need to transport containers, building materials, steel coil, or agricultural machinery equipment, our flatbed trailers can provide you with a stable and safe transportation experience.
- Overall Dimensions (mm)
- 12,500 × 2,500 × 1,560
- Kingpin
- JOST 50#
- Landing Gear
- JOST, two-speed, linked type
- Tires & Rims
- Chengshan 12R22.5 × 12 pcs; Steel Rims 9.0-22.5 × 12 pcs
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
- Global logistics and freight operators specifying against a published parts list
- Infrastructure project fleets carrying steel coil, building materials and agricultural machinery
Problems It Solves
Suppliers quote vaguely and substitute parts
Every major component is named: Chengshan tyres, FUWA axles, JOST kingpin, Shunanda relay valve, so a quotation can be compared line by line.
Fatigue cracking on long-haul duty
Reinforced chassis with a 500 mm main beam, 14 mm upper flange, 8 mm web and 16 mm lower flange for fatigue resistance.
What You Get For the Money
20, 40 and 45 ft coverage
Standard configuration covers regular container sizes with 2 or 3 axle structures.
3 mm checkered floor plate
A real working deck with 16# channel side beams.
Toolbox and spare tyre carrier
One set each supplied as standard, along with 12 tyres and 12 steel rims.
Technical Description
Technical Construction
The entire vehicle is made of high-strength steel, and the chassis structure has been reinforced, featuring excellent load-bearing capacity and fatigue resistance. The standard configuration covers regular sizes such as 20 feet, 40 feet, and 45 feet, supports 2-axle or 3-axle structures, and can be equipped with loading accessories such as container locks, rod holes, or detachable side rails according to transportation requirements.
Build and Finish
We offer direct supply prices from the source factory, ensuring quality while helping customers save costs. Support custom axle brands, suspension types, tire specifications, color spraying, etc., to meet the usage standards of different countries and regions.
Operating Detail
As a Chinese flatbed trailer supplier with many years of export experience, we offer fast delivery, complete customs declaration documents, and after-sales support to help you efficiently expand your transportation business or upgrade your existing fleet.
Manufacturing Notes
Choose us, choose a truly reliable and practical flatbed semi-trailer to make your freight transportation more worry-free and efficient.
Reliable Flatbed Trailer Supplier 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.
| Overall Dimensions (mm) | 12,500 × 2,500 × 1,560 |
|---|---|
| Kingpin | JOST 50# |
| Landing Gear | JOST, two-speed, linked type |
| Tires & Rims | Chengshan 12R22.5 × 12 pcs; Steel Rims 9.0-22.5 × 12 pcs |
| Axles | FUWA 13T × 3 axles |
| Brake Chambers & Relay Valve | 4 double + 2 single chambers; Shunanda relay valve |
| Leaf Springs | 10 pcs × 6 sets |
| Suspension | Tandem mechanical suspension |
| Main Beam | 500 mm height; Upper flange 14 mm, Web 8 mm, Lower flange 16 mm |
| Floor Plate | 3 mm checkered steel plate |
| Cross Beams | 10# channel steel |
| Side Beams | 16# channel steel |
| Twist Locks | 12 pcs; capable of loading one 40FT container or two 20FT containers |
| Toolbox & Spare Tire Carrier | 1 set each |
This Build in the Factory








How It Compares
The skeletal chassis at the same dimensions saves weight and cost but only carries boxes. This flatbed adds a deck, which pays for itself if you take backhauls of general freight.
Operating Notes
- Protect the checkered floor when loading sharp-edged steel.
- Check twist lock positions match the container before landing it.
- Grease the landing gear and kingpin plate on schedule.
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 substitute the tyre brand?
Yes. Chengshan 12R22.5 is standard; we fit other brands where your local service network prefers them.
2 or 3 axles?
Three axles for 40 and 45-foot boxes and heavy general cargo. Two axles is a lighter, cheaper option for 20-foot work within your axle limits.
How does this differ from the skeleton chassis?
Same running gear and main beam, but this version has a full 3 mm checkered floor so it carries general cargo, not just containers.
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.