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Custom-built flatbed semi trailers designed for container transport, steel cargo, machinery hauling, timber loads, and heavy project transport applications.
A flatbed semi trailer is an open-deck trailer connected to a tractor through a king pin and fifth wheel. Unlike enclosed trailers, it has no roof and no fixed box body, which allows you to load cargo from the top, rear or sides. It is widely used for containers, building materials, steel, timber, machinery and irregular cargo.
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The specifications below are based on Lionkar’s reference 4-axle flatbed configuration. Final parameters can be adjusted according to your cargo type, target country, tractor model and import requirements.
| Item | Specification |
|---|---|
| Model | flatbed semi trailer reference configuration |
| Dimension L × W × H | 12500 × 2650 × 2000 mm |
| Loading Weight | 50 ton |
| Axle | 13T, wheelbase 1840 mm |
| Suspension System | Mechanical suspension |
| Main Beam | Beam height 500 mm; upper plate 14 mm; lower plate 16 mm |
| Platform Plate | 3 mm |
| Tire | 12R22.5 × 16 |
| Rim | 9.0 × 16 |
| Landing Gear | 28T legs |
| King Pin | #90 bolted type |
| Surface Coating | 12 steps |
| Electrical System | 24V, 7-way receptacle, 7-wire harness |
| Lamps | Tail lamp with turn signal, brake light, reflector and side lamp |
| Cable | One set 6-core standard cable |
| Color | Optional |
Customization Note:
You can request adjustments for axle quantity, platform length, tire specification, lock layout, side-wall structure, color, coating and electrical configuration before production.
Video records associated with flatbed semi trailer projects, covering finished trailer configurations, cargo applications, structural details, and field operating conditions.
Flatbed semi trailer performance depends on structural components working together as a complete transport system. Main beam design, axle configuration, suspension structure, platform construction, and electrical systems all determine how the trailer is specified for different transport applications.
Main beam design is one of the primary structural elements that defines overall flatbed semi trailer capacity and chassis durability.
The reference configuration uses a 500 mm beam height with 14 mm upper flange and 16 mm lower flange, providing the structural strength required for demanding commercial transport applications. Beam dimensions and steel specification are typically determined according to payload requirement, cargo type, and operating conditions.
Axle configuration directly influences payload distribution and compliance with regional axle load regulations.
The reference flatbed semi trailer is configured with 4 axles rated at 13 tons each with 1840 mm axle spacing, providing a layout commonly specified for higher payload transport applications.
Final axle arrangement is generally determined by payload capacity, tractor unit specification, route conditions, and local transport regulations.
Platform structure of the flatbed semi trailer forms the primary cargo-bearing surface throughout loading and transport operation.
The reference configuration uses a 3 mm steel deck plate designed for general cargo applications including steel products, machinery, palletized cargo, timber loads, and container-related freight.
Platform thickness, support structure, and deck design can be specified according to cargo weight distribution and loading conditions.
Electrical system design remains an important part of flatbed trailer compatibility and road transport operation.
The flatbed semi trailer uses a standard 24V electrical system with 7-way receptacle, 7-wire harness, tail lamps, brake lamps, reflectors, side marker lights, and 6-core connection cable.
Electrical layout is generally configured according to tractor unit connection standards and destination market requirements.
Flatbed semi trailer performance depends on structural design, load distribution, and component configuration working together for demanding commercial transport operation.
Open deck design allows flexible loading from the top, side, or rear for different cargo types.
500 mm main beam structure forms the primary chassis support under loaded operating conditions.
3 mm steel platform provides a durable cargo-bearing surface for general freight applications.
Mechanical suspension remains a widely used configuration for commercial trailer operation.
12R22.5 tire configuration matches standard heavy-duty trailer operating requirements.
24V electrical layout uses standard trailer lighting and tractor connection configuration.
Lionkar specializes in flatbed semi trailer manufacturing with custom trailer configurations developed for different payload requirements, transport applications, and destination market specifications. Production covers commercial trailer projects across a wide range of international heavy-duty transport applications.
Technical documentation, component specifications, spare parts records, and configuration data remain part of the long-term operating support associated with flatbed semi trailer production. Service planning may vary according to trailer configuration, operating conditions, and project requirements.
Flatbed semi trailer production involves steel preparation, chassis welding, deck assembly, suspension installation, surface coating, and final production inspection as part of regular trailer manufacturing operations.
Flatbed semi trailers are widely used for cargo applications requiring open deck loading, flexible cargo securing arrangements, and compatibility with different freight categories across commercial transport operation.
Flatbed semi trailers can be configured with container locking systems for 20ft and 40ft container transport. This configuration is commonly used for port transport, inland container movement, depot transfer, and industrial freight operation.
Open deck structure makes flatbed semi trailers suitable for transporting steel coils, pipes, beams, fabricated steel sections, and construction materials requiring side loading access or overhead crane loading during cargo handling.
Timber loads, palletized cargo, and agricultural freight often require flexible loading arrangements depending on cargo dimensions and packaging conditions. Flatbed and side-wall flatbed configurations are commonly specified for mixed cargo transport applications.
Flatbed semi trailers are regularly used for transporting machinery, equipment, generators, industrial components, and project cargo requiring stable deck support together with multiple cargo securing points during transport operation.
Tell us your cargo, country, quantity and port. We will prepare a suitable trailer quotation.
Customer feedback collected from different flatbed semi trailer orders, transport projects, and commercial applications involving flatbed semi trailers across a range of operating conditions and market requirements.
Customer visit records connected with factory meetings, flatbed semi trailer discussions, production communication, and project-related visits during different stages of trailer manufacturing and commercial cooperation.
Shipping preparation records associated with flatbed semi trailer orders, covering protective handling, trailer preparation, loading arrangements, and export processes completed before international shipment.
The following questions cover common factors involved in flatbed semi trailer configuration and production planning.
A flatbed semi trailer is commonly used for transporting containers, steel products, timber, machinery, palletized freight, bagged cargo, and project materials. Its open deck structure allows cargo loading from the top, side, or rear depending on loading conditions and freight type.
Forty-foot flatbed semi trailers remain one of the most widely used configurations for container transport and general commercial freight operation. Platform dimensions may vary depending on cargo length, route restrictions, and transport application requirements.
Three-axle flatbed semi trailers are widely used for standard freight operation, while four-axle configurations are more common for heavier cargo applications or markets operating under stricter axle load regulations. Final axle layout depends on payload requirement and transport conditions.
Flatbed semi trailers can be configured with container locking systems designed for 20ft and 40ft container transport. This configuration is commonly specified for port transport, inland container movement, depot transfer, and mixed freight operation.
The main beam forms the primary structural support throughout loading and transport operation. Beam dimensions, steel grade, and chassis design directly influence payload capacity, frame durability, and long-term structural performance under commercial transport conditions.
With a source factory where flatbed semi trailers can be custom-built, and with years of experience in production, choose us to maximize your benefits.
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