3-Axles dual-tyre Log semi-trailer

Product advantage

Fact-based Design: The main frame uses Q460 high-strength steel, which has 20% higher tensile strength than standard Q355 steel. This enables the trailer to carry logs up to 18 meters in length and support a maximum payload of 40 tons, meeting the requirements of large-scale forestry operations.

Reinforced Chassis: The tri-axle configuration, paired with BPW/SAF heavy-duty axles and air suspension, evenly distributes the weight of unevenly loaded logs, reducing tire wear by 15% compared to conventional leaf-spring suspensions. This is validated by Luoxiang’s 8 consecutive years of industry-leading production and sales data.

Adjustable Bunk System: The trailer is equipped with 8–12 adjustable steel log bunks, which can be spaced to match log diameters from 30 cm to 80 cm. This prevents log shifting during braking and cornering, a critical safety feature certified by China’s National Automotive Quality Supervision and Inspection Center.

Advanced Lashing System: It comes with a heavy-duty winch and high-tensile steel cables (breaking strength ≥ 10 tons per cable), ensuring logs remain secure even on steep mountain roads. This system has passed ECE R13 braking stability tests, with zero reported cargo shift incidents in 3 years of field use.

Core Technical Specifications Overview

The following specifications define the structural and performance foundation of this trailer:

• Trailer Type: 3-Axles Dual-Tyre Log Semi-Trailer

• Outline Dimension: 12,550 × 2,585 × 2,900 mm

• Axles: LUCKSUN 16T heavy-duty axles (3 axles)

• Rated Load Mass: 70,000 kg

• Tires: 12R22.5 – 18PR dual tyres

• Base Plate: 3.0 mm pattern plate

• Brake Valve Group: WABCO

• Traction Pin (Kingpin): 90

• Suspension: 10-leaf spring (13 mm × 90 mm)

• Fence Configuration Reference: 800 + 400 fence plate structure

This configuration is optimized for high payload efficiency, structural reliability, and compliance with heavy-duty transport regulations.

Here are the pictures of the 3-Axles dual-tyre Log semi-trailer from other angles for your reference.

Fact-Based Design Philosophy: Built on Engineering, Not Guesswork

Q460 High-Strength Steel Main Frame

At the heart of this trailer is a Q460 high-strength steel main frame, which delivers 20% higher tensile strength than standard Q355 steel commonly used in low- to mid-range trailers.

This material choice enables:

• Higher resistance to bending and torsion

• Reduced risk of frame fatigue under cyclic loads

• Safe transport of logs up to 18 meters long

• Support for payloads reaching 40 tons of timber in real-world operations

In forestry transport, where loads are uneven and dynamic, steel selection directly impacts safety, lifespan, and operating cost.

Chassis Structure and Load Distribution

Reinforced Tri-Axle Configuration

The 3-axle layout is a proven configuration for balancing payload capacity, maneuverability, and regulatory compliance. When combined with dual tyres, it delivers superior stability under uneven log loading conditions.

Key benefits include:

• Even weight distribution across axles

• Reduced stress concentration on the main frame

• Improved braking stability

• Lower risk of axle overload

This design is especially suitable for regional and long-haul forestry routes where road conditions vary significantly.

Dual-Tyre Advantage in Log Transport

Dual tyres on each axle provide:

• Higher load-bearing capacity per axle

• Improved lateral stability

• Better redundancy in case of tire damage

• Enhanced performance on gravel and mixed-surface roads

Compared with single-tyre configurations, dual tyres are often preferred in highway-heavy forestry transport, where durability and legal axle loads are key priorities.

Here are the pictures of the 3-Axles dual-tyre Log semi-trailer from other angles for your reference.

Suspension System: Designed for Uneven, Heavy Loads

Heavy-Duty Leaf Spring Suspension

The trailer is equipped with a 10-leaf spring suspension system (13 mm × 90 mm), specifically engineered for logging applications.

Advantages include:

• High mechanical reliability

• Strong resistance to overload conditions

• Simple structure with low maintenance requirements

• Proven durability in remote forestry regions

While air suspension offers comfort, leaf springs remain the preferred choice for extreme-duty logging, where robustness matters more than ride softness.

Reduced Tire Wear and Structural Fatigue

Field data from long-term forestry operations shows that optimized axle and suspension geometry can reduce tire wear by up to 15% compared to poorly designed conventional trailers. This directly lowers operating costs and improves fleet uptime.

Adjustable Bunk System: Safety Through Flexibility

8–12 Adjustable Steel Log Bunks

One of the most critical safety features of this trailer is its adjustable bunk system. Equipped with 8 to 12 heavy-duty steel log bunks, the trailer can be configured to match different log lengths and diameters.

Adjustable spacing supports:

• Log diameters from 30 cm to 80 cm

• Different timber species and moisture contents

• Mixed log loads in a single trip

This flexibility significantly reduces the risk of log shifting during braking, cornering, or downhill driving.

Certified Safety Performance

The bunk system design has been certified by China’s National Automotive Quality Supervision and Inspection Center, confirming its effectiveness in preventing load movement under real-world transport conditions.

For buyers, certification provides measurable assurance, not just marketing claims.

Here are the pictures of the 3-Axles dual-tyre Log semi-trailer from other angles for your reference.

Advanced Lashing and Securing System

Heavy-Duty Winch and Steel Cable System

To further enhance load security, the trailer is equipped with:

• Heavy-duty mechanical winches

• High-tensile steel cables with ≥10-ton breaking strength per cable

This system ensures logs remain firmly secured even on:

• Steep mountain roads

• Sharp curves

• Emergency braking situations

Compliance with ECE R13 Stability Standards

The lashing system has passed ECE R13 braking stability tests, with:

• Zero reported cargo shift incidents

• Verified performance over 3 years of continuous field use

For international buyers, ECE compliance is especially important for cross-border and export-oriented transport operations.

Floor and Base Plate Design

3.0 mm Pattern Plate Floor

The 3.0 mm patterned steel base plate improves:

• Anti-slip performance

• Structural stiffness

• Resistance to abrasion from log movement

Compared to smooth plates, patterned plates provide higher friction, improving safety during loading and unloading.

Braking System and Road Safety

WABCO Brake Valve Group

The braking system integrates WABCO components, known globally for reliability in heavy commercial vehicles.

Key benefits:

• Fast brake response

• Stable air pressure control

• Consistent braking under full load

• Compatibility with ABS/EBS systems

In log transport, where downhill braking with heavy loads is common, braking reliability directly affectse factor in accident prevention.

Here are the pictures of the 3-Axles dual-tyre Log semi-trailer from other angles for your reference.

Kingpin and Coupling Strength

The 90-type traction pin (kingpin) ensures:

• Secure coupling with heavy-duty tractor units

• Reduced wear under high articulation stress

• Stable towing during long-distance transport

Typical Application Scenarios

Forestry and Logging Operations

This trailer is widely used for:

• Transporting raw logs from forest to sawmill

• Long-distance timber hauling

• Regional log distribution networks

Timber Export and Port Logistics

The stable structure and adjustable bunk system make it suitable for:

• Export-bound timber transport

• Port and intermodal yard operations

• High-volume timber supply chains

Biomass and Wood Processing Supply Chains

Beyond raw logs, it can also handle:

• Pulpwood

• Biomass logs

• Industrial timber products

Competitive Comparison: Why This Trailer Outperforms Low-Quality Alternatives

Material and Structural Differences

Low-quality log trailers often use:

• Q235 or low-grade steel

• Simplified welding processes

• Non-certified bunk systems

These shortcuts result in:

• Frame deformation

• Shorter service life

• Increased safety risks

By contrast, the Q460-based design prioritizes structural integrity and lifecycle value.

Here are the pictures of the 3-Axles dual-tyre Log semi-trailer from other angles for your reference.

Safety System Comparison

Many low-end trailers rely on:

• Basic rope lashing

• Fixed bunk spacing

• Non-certified designs

This trailer’s adjustable bunks + certified lashing system significantly reduce accident risk and cargo loss.

Total Cost of Ownership (TCO) Advantage

Although the initial investment may be higher than entry-level trailers, the long-term benefits include:

• Longer service life

• Reduced tire and suspension wear

• Lower maintenance frequency

• Fewer safety incidents

Over a typical 5–8 year operating cycle, the cost per transported ton is substantially lower.

Buyer Guidance: How to Source the Right Log Semi-Trailer

When purchasing a 3-axles dual-tyre log semi-trailer, professional buyers should evaluate:

• Steel grade used in the main frame

• Axle load rating and brand

• Log length and diameter requirements

• Terrain and road conditions

• Availability of spare parts and after-sales support

A properly specified trailer improves both safety and profitability.

Recommended B2B Purchasing Language

Buyers communicating with manufacturers may use phrases such as:

• “We require a 3-axle dual-tyre log semi-trailer with Q460 steel main frame.”

• “Please confirm adjustable bunk quantity and spacing range.”

• “Kindly provide certification documents for the lashing system.”

• “We are planning fleet-level procurement and long-term cooperation.”

Clear technical language helps avoid mismatches and delays.

Conclusion: A Reliable Investment for Professional Forestry Transport

The 3-Axles Dual-Tyre Log Semi-Trailer is a purpose-built, engineering-driven solution for modern forestry logistics. With its Q460 high-strength steel frame, tri-axle dual-tyre configuration, adjustable bunk system, and certified safety features, it delivers the reliability and performance demanded by large-scale logging operations.

For forestry companies, timber transport contractors, and international distributors seeking long-term value, safety, and efficiency, this trailer represents a strategic and dependable investment.