Technical Parameters
|
Item |
Specification |
|
Vehicle Type |
13-meter Three-Axle Low Flatbed Semi-Trailer (Heavy-Duty Dedicated) |
|
External Dimensions (L×W×H) |
13000mm×3000mm×1700mm (excluding ladder height) |
|
Cargo Platform Dimensions |
8200mm×3000mm |
|
Main Beam Material |
Q345B/T700 high-strength manganese steel, four longitudinal beam structure |
|
Floor Plate Specification |
Standard 3mm anti-slip patterned steel plate |
|
Axle Configuration |
3×13-ton heavy-duty maintenance-free axles (brand optional) |
|
Suspension Type |
Heavy-duty mechanical balance suspension (air suspension optional) |
|
Tire Specifications |
12R22.5 heavy-duty tubeless dual tires (12 tires standard) |
|
Traction Pin Model |
90# JOST High-Strength Traction Pin |
|
Outrigger Specifications |
28-ton linked hydraulic outriggers |
|
Ladder Type |
Mechanical spring heavy-duty ladder |
|
Curb Weight |
7.2 tons - 8.0 tons |
|
Compliant Rated Load Capacity |
40 tons |
|
Maximum Heavy Load Capacity |
60 tons |
|
Braking System |
Dual-circuit air brake + ABS anti-lock braking |
|
Wheelbase |
6850mm + 1310mm + 1310mm |
Standard Configuration
Main Load Frame
Constructed from Q345B/T700 high-strength manganese steel, the four-main-beam frame uses full automatic submerged arc welding for solid uniform welds. Double thickened plates reinforce the gooseneck. Dense cross beams and a 3mm anti-slip patterned steel floor stop cargo sliding. Welded lashing hooks on side rails simplify securing equipment and steel, suitable for long heavy-duty transport.
Suspension & Axles
Three 13-ton heavy axles come standard; FUWA, BPW and SAF axles are optional. Maintenance-free hubs reduce upkeep frequency. Reverse-mounted mechanical balance suspension evenly distributes loads and absorbs shocks for rough construction roads. Optional air suspension better protects delicate oversized cargo.
Tires & Wheels
Standard: 12pcs 12R22.5 wear-resistant heatproof tubeless tires + heat-dissipating steel wheels for long-distance heavy hauling. 245/70R19.5 low-profile tires are available to lower deck height for oversize loads; premium models support lightweight aluminum wheels.

Towing & Hydraulic Supports
90# JOST heavy-duty kingpin fits most global tractors, anti-wear and easy to install. 28-ton hydraulic landing legs level the trailer smoothly on hard or soft ground under empty or full loads.
Loading Ramp
Standard thick manganese steel spring-assisted ramp bears up to 60 tons for self-loading excavators, loaders and graders. Spring rebound cuts operation effort without extra lifting tools. Automatic hydraulic ramps are optional.
Brake & Electrical System
The 3-axle low-bed semi-trailer features a WABCO dual-circuit air braking system with standard ABS, delivering stable braking performance and effectively preventing sideslip under heavy loads while ensuring seamless compatibility with the braking systems of various tractor units. It utilizes a universal 24V wiring harness and waterproof 7/15-pin sockets; the high-brightness LED lights and reflective markings comply with EU export standards, maintaining reliable performance even in adverse weather conditions such as rain, snow, and sandstorms.

Optional Upgrade Configurations
Structural Reinforcement Packages
Customers can upgrade with a thicker 4mm anti-slip floor plate, triple-reinforced gooseneck, fully strengthened main longitudinal beams, removable extendable side guards and rear anti-collision bumpers.
01
Running Gear Upgrades
Available upgrades include 16-ton heavy axles, airbag suspension, hydraulic lift suspension, low-profile heavy-duty tires and lightweight aluminum rims.
02
Loading & Unloading Add-ons
Choose full hydraulic automatic heavy ramps, detachable split goosenecks, extra-large extended toolboxes and reinforced side outriggers for easier cargo handling.
03
Advanced Safety & Brake Kits
Boost road safety with EBS intelligent braking, real-time TPMS tire pressure monitoring, emergency brake assist and chassis anti-roll reinforcement frames.
04
Anti-Corrosion Treatments
Full anti-rust protection options cover complete vehicle sandblasting, zinc-rich primer, dual anti-corrosion topcoat, chassis rust-proof coating and dedicated anti-rust paint for suspension parts.
05
Key Product Features
1. Low-Profile Platform, Ideal for Over-Height Cargo
Adopting a dedicated sunken low-platform design, this trailer features a much lower deck height than standard flatbed models. It allows legal transportation of over-height construction machinery and large equipment, solving common logistics challenges for oversized cargo. The low-center-gravity structure significantly improves high-speed stability and effectively prevents rollover risks.
2. Ultra-Strong Structure & Heavy-Duty Load Capacity
Equipped with thickened four-longitudinal beams and a double-layer reinforced gooseneck, the frame delivers superior torsion and impact resistance. Its balanced three-axle load-bearing system supports 40-ton standard compliant loading and up to 60-ton extreme heavy loads, perfectly suited for high-intensity mining, road and infrastructure construction operations.

3. Integrated Spring Ladder for Higher Loading Efficiency
The 3-axle low-bed semi-trailer comes standard with heavy-duty spring-assisted ramps, enabling construction machinery to drive on and off independently. This eliminates the need for additional lifting equipment, significantly reducing operating costs while streamlining workflows, shortening cargo turnaround times, and enhancing overall transport efficiency.
4. Wide Compatibility & Low Maintenance Cost
Fully compatible with all mainstream tractor units and adaptable to diverse road conditions. Core travel and brake components feature high universality, supported by global spare part supply with low-cost consumables. With low failure rate, excellent rust and corrosion resistance and extended service life, the trailer ensures fast and stable long-term ROI.

Operation & Maintenance Guidelines
Pre-Departure Inspection
Check brake air pressure and airtightness to eliminate air leakage. Inspect tire pressure, tread wear and hub temperature. Confirm the towing pin and outrigger clips are fully locked. Check gooseneck welds and floor beams for deformation or cracks. Ensure the ladder is firmly fixed, and all warning lights and reflective marks are complete. Depart only after full confirmation.
Loading & Unloading Standards
Keep cargo gravity centered; uneven loading and overloading are strictly prohibited. Secure oversized equipment with lashing ropes, tensioners and side hooks from all directions. When using the ladder, park the trailer on flat solid ground and retract outriggers. Operate machinery at a steady low speed; sudden acceleration and braking are forbidden to protect the ladder and frame.
Driving Specifications
Limit speed below 80 km/h for heavy and oversized cargo. Avoid speeding, sharp turns and emergency braking on highways. Reduce speed in advance at curves and intersections to reserve sufficient turning radius. Slow down on long downhill slopes and coordinate with the tractor brake system for stable speed control. Drive slowly and steadily on rough construction roads to avoid frame and axle damage from road obstacles.
Routine Maintenance
Retighten U-bolts, frame bolts and ladder fasteners every 5,000 km. Clean chassis dirt regularly and inspect welds for cracks. Check brake parts and wheel bearing wear every 100,000 km. Lubricate towing pins and outrigger hinges periodically. Apply anti-rust paint regularly in humid, coastal and salt-spray areas to prolong trailer service life.
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