Designed for the rigorous demands of modern logistics, this trailer linked landing legs system serves as the structural backbone for semi-trailers during parking, loading, and unloading operations. Manufactured with high-tensile steel and precision welding, these units are engineered to support the harshest working environments, providing a stable foundation that ensures the safety of both cargo and personnel .
The system functions as an independent support structure that activates when the tractor disconnects from the trailer. With a focus on high efficiency, the gearbox mechanisms allow for swift operation, significantly reducing driver fatigue and dwell time at loading docks.
Technical Specifications
Below is the detailed technical breakdown of the standard production models:
|
Parameter |
Model A (Standard) |
Model B (Long Stroke) |
Model C (Heavy Duty) |
|
Lifting Capacity |
28 Tons |
28 Tons |
25/30/32 Tons |
|
Static Load Capacity |
80 Tons |
80 Tons |
60-80 Tons |
|
Lifting Stroke |
430 mm |
480 mm |
480 mm |
|
Closed Height |
794 mm |
844 mm |
844 mm |
|
Gear Type |
Dual Speed |
Dual Speed |
Dual Speed (Optional) |
|
Gear Ratio |
High: 4.5 turns / Low: 38.6 turns |
High: 4.5 turns / Low: 38.6 turns |
Customizable |
|
Unit Weight |
~100-110 kg |
~105-115 kg |
Customizable |
|
Surface Finish |
Anti-corrosion paint |
Anti-corrosion paint |
Anti-corrosion paint |
|
Certification |
ISO/TS16949 |
ISO/TS16949 |
ISO/TS16949 |
Key Product Features
High-Tensile Steel Construction
The main housing, featuring a massive 5-inch upper structure, utilizes steel with a minimum yield strength of 80,000 psi to maintain structural integrity while optimizing weight.
Adaptive Gearbox Design
The exclusive three-gear train system allows for high-speed travel when free and automatically shifts to a low-speed, high-torque setting when bearing heavy loads.
Weather-Resistant Assembly
Equipped with high-quality seals and low-temperature premium lubricant, the gearbox remains operational in a temperature range from -65°F to 225°F.
Dual-Speed Efficiency
The dual-speed mechanism dramatically reduces operational time, allowing operators to lift or lower the leg with 40% less manual effort compared to standard units.
Robust Foot Design
The integrated triangular support foot ensures optimal ground contact and stability, preventing sinking in varied terrains.
Extended Service Life
The anti-corrosion surface treatment and durable welding standards provide a 12-month warranty with an expected service life of over 20,000 lift cycles.
Application Areas
The trailer linked landing legs is crucial for a variety of heavy-duty transport scenarios. This system is specifically engineered for use in:
● Container transportation: Supporting standard high-cube and flat-rack containers.
● Bulk commodity transport: Handling hopper trailers and tankers with heavy static loads.
● Lowboy trailers: Providing essential support for heavy machinery and construction equipment transport.
● Refrigerated fleets: Ensuring shock absorption and stability for sensitive cargo.
Production Advantages
Proven Manufacturing Standards
The factory maintains ISO/TS16949 and 3C certifications, ensuring compliance with international quality norms.
Rigorous Quality Control
Automated welding and batch testing protocols guarantee that every unit meets or exceeds AAR M-931 and TTMA RP-4 performance specifications.
Cost-Effective Engineering
As a direct manufacturer with a production capacity of 1000 units/month, we offer optimal pricing structures, including volume-based discounts for procurement managers.
Comprehensive After-Sales Support
A robust global distributor network ensures ready availability of spare parts and a 48-hour technical response SLA to minimize fleet downtime.
FAQ
Q1: What is the difference between lifting capacity and static capacity?
A1: The lifting capacity (e.g., 28 tons) is the maximum weight the gear can actively lift, whereas the static capacity (e.g., 80 tons) is the weight it can support when stationary for extended periods. You can find this specification listed for our 25T to 32T models.
Q2: How do I choose between single-speed and dual-speed gear?
A2: For procurement flexibility, dual-speed gears are the preferred standard for modern fleets. They offer fast "free travel" for initial leg extension and a high-torque gear for final lifting, significantly reducing manual effort and time.
Q3: Can these legs be customized for my specific trailer dimensions?
A3: Yes, we offer full customization including lifting stroke, mounting height, and foot type. Our support team handles custom requests for specialized lowboy or hydraulic applications.
Q4: How long does the delivery lead time take?
A4: For standard orders, the lead time is generally 15 to 30 days. Peak season lead times may extend to one month, but we prioritize urgent orders via our manufacturer-direct shipping model.
Q5: What are the payment and delivery terms?
A5: We support standard international trade terms including FOB, CIF, and EXW. Payment methods accepted are typically T/T, L/C, and D/P.
Q6: Is there a warranty and what does it cover?
A6: We provide a 12-month warranty on all mechanical components and a 5-year warranty on the main structure for certain models, covering defects in materials and workmanship.
Q7: Can you provide samples for quality verification?
A7: Yes, sample orders are available for procurement managers to evaluate material quality and operational performance. Samples can be requested through our sales team.
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