Low Bed Trailer
The CNFORCE Low Bed Semi Trailer (Lowboy) is engineered for the safe, heavy-duty transport of construction machinery, industrial equipment, and oversized cargo. Fabricated with high-tensile Q345B/Q460C steel main beams, it delivers a low center of gravity and high structural stability for hauling excavators, bulldozers, wheel loaders, and transformers. Equipped with heavy-duty FUWA or BPW axles and reinforced loading ramps, it ensures dependable load-bearing efficiency across demanding routes.
Quick Specifications
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Loading Capacity: 40 – 80 Tons (Customizable)
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Axle Configuration: 3 – 4 Axles (FUWA / BPW 13T–16T)
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Main Beam Material: Q345B / Q460C High-Tensile Steel
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Loading Ramps: Heavy-Duty Spring-Assisted or Hydraulic Folding Ramps
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Working Deck Height: 850 mm – 1,150 mm
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Landing Gear: JOST 28-Ton Two-Speed
Product Details:
Key Features and Applications
Low Center of Gravity and Drop Deck Design
The stepped low-bed platform lowers the overall height of the loaded cargo, ensuring enhanced driving stability on winding or uneven haul roads. This low-profile deck allows tall machinery to clear overhead utility lines, bridges, and tunnels within legal transit height limits.
High-Tensile Welded Main Beams
The chassis main beams are fabricated from Q345B/Q460C high-tensile steel using automated submerged arc welding. The deep I-beam structure resists bending, sagging, and torsional twisting under heavy concentrated wheel and track loads from earthmoving equipment.
Heavy-Duty Multi-Axle Suspension
Configurable with 2 to 6 axles using heavy-duty FUWA or BPW axles. Paired with heavy-duty mechanical leaf spring suspensions or optional air suspension, the running gear distributes payload weight evenly across all wheel sets to satisfy regional highway axle-load regulations.
Reinforced Heavy Machinery Loading Ramps
Equipped with heavy-duty spring-assisted mechanical ramps or optional hydraulic folding ramps. The ramp incline angle is engineered for the safe drive-on loading and unloading of tracked excavators, pavers, milling machines, and wheeled loaders.
Primary Industry Applications
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Construction Machinery Transport: Hauling crawler excavators, bulldozers, road rollers, and wheel loaders.
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Energy and Utilities: Transporting heavy electrical transformers, generators, and industrial power modules.
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Structural and Industrial Cargo: Moving precast concrete bridge beams, steel structures, and heavy tanks.
Technical Specifications
| Item | Unit | Parameter |
| Model | – | Low Bed Semi Trailer (Lowboy) |
| Rated Payload | t | 40 – 80 (Customizable up to 100+) |
| Tare Weight | kg | 9,800 – 12,500 |
| Overall Dimensions (L×W×H) | mm | 13,000 – 16,000 × 3,000 × 1,750 – 3,100 |
| Working Platform Length | mm | 9,000 – 11,500 |
| Working Platform Height | mm | 850 – 1,150 |
| Main Beam Material | – | Q345B / Q460C Submerged Arc Welded Steel |
| Platform Floor | mm | 4 mm / 5 mm Diamond Checker Plate |
| Axles | – | 3 or 4 Axles × 13T / 16T (FUWA / BPW Brand) |
| Suspension System | – | Heavy-Duty Mechanical Suspension / Air Suspension |
| Leaf Springs | – | 90 mm × 13 mm / 16 mm × 10 Layers |
| Loading Ramps | – | Spring-Assisted Mechanical or Hydraulic Folding |
| Kingpin | – | JOST 2.0-inch (50 mm) / 3.5-inch (90 mm) |
| Landing Gear | – | JOST 28-Ton Two-Speed |
| Tires | – | 8.25R20 / 11.00R20 / 12R22.5 / 315/80R22.5 |
| Brake System | – | Dual-Line Pneumatic, WABCO Relay Valve, T30/30 Chambers |
| Electrical System | V | 24 |
Dimensions and Operating Range
The overall trailer length ranges from 13,000 mm to 16,000 mm with a standard working platform width of 3,000 mm. Side pull-out outriggers can be fitted to extend the usable deck width to 3,500 mm for wide-track machinery. The drop-deck working height of 850 mm to 1,150 mm facilitates the transport of high-profile machinery while maintaining clearance under highway infrastructure.
Supplier Support
We provide technical documentation, configuration consulting, and export procurement support for CNFORCE low bed semi trailers. Our engineering team assists with tractor truck fifth-wheel height matching and kingpin alignment to ensure seamless pairing with your prime movers. For maritime transit, trailers are transported via RORO or bulk cargo vessels with comprehensive surface treatment, including shot blasting, anti-corrosion primer, and protective wax spraying to resist seawater atmospheric corrosion. Maintenance components, replacement leaf springs, and brake parts are accessible through our export supply network.
Frequently Asked Questions
What types of heavy machinery can be transported on this low bed trailer?
The trailer is designed to transport crawler excavators, wheel loaders, bulldozers, motor graders, road pavers, industrial transformers, and oversized structural fabrications.
What is the difference between mechanical spring ramps and hydraulic ramps?
Mechanical spring-assisted ramps are manually lowered and lifted with heavy-duty spring counterbalances, offering a durable, low-maintenance solution. Hydraulic ramps use hydraulic cylinders powered by a power pack or tractor PTO, allowing automated folding and unfolding for frequent loading operations.
Can the width of the working platform be extended?
Yes. In addition to the standard 3,000 mm platform width, fold-out side brackets (outriggers) and extension planks can be added to both sides to support equipment widths up to 3,500 mm.
How does the low deck height improve transport safety?
The drop deck lowers the payload center of gravity, reducing lateral sway during highway cornering and travel over uneven terrain. It also maximizes vertical clearance under overhead bridges and power cables when hauling tall equipment.
