Double Deck Car Transport Semi Trailer

ZW Group 2-Axle 6-8 Car Carrier Trailer – Transport More Vehicles, Faster!

Product Description

Looking to boost your vehicle logistics efficiency?

ZW Group 2-axle 6-8 car carrier semi trailer is the ultimate solution. Designed to handle multiple vehicles safely, it ensures your fleet moves faster, reduces transport costs, and increases reliability.

Perfect for auto dealerships, car rental services, and shipping companies.

Core Technical Specifications & Componentry

• General Advantages: A Foundation of Quality

  • Chassis & Frame Construction: The main frame is fabricated from Q345B high-strength steel, with main "I" beams constructed using automatic submerged-arc welding techniques for superior penetration and a flawless, durable seam. The entire chassis undergoes a rigorous stress-relieving process post-welding to ensure long-term structural stability and resistance to deformation under dynamic loads.

  • Advanced Coating System: Our three-coat painting process provides exceptional corrosion resistance and a premium finish.

    • Step 1: Abrasive Blasting: The entire steel structure is shot-blasted to a Sa 2.5 standard, creating an optimal surface profile for adhesion.

    • Step 2: Zinc-Rich Epoxy Primer: A high-zinc content primer is applied, offering cathodic protection against rust and corrosion, particularly in harsh weather conditions.

    • Step 3: Polyurethane Topcoat: Two layers of a premium polyurethane (PU) topcoat are applied, providing excellent gloss retention, UV resistance, and protection against chemical and physical abrasion. The total dry film thickness (DFT) is maintained at a minimum of 100µm.

  • Axle & Suspension System:

    • Axles: Equipped with two 13-ton capacity axles from world-renowned brands such as BPW or FUWA. These axles are selected for their exceptional durability, low maintenance requirements, and widespread availability of spare parts, ensuring maximum uptime. Precision-machined spindles and high-performance bearings guarantee optimal rolling efficiency.

    • Suspension: The standard configuration features a robust mechanical suspension system with reinforced multi-leaf springs. For operators requiring superior cargo protection and ride quality, an optional air suspension system is available, featuring automatic load sensing and ride height adjustment capabilities for improved stability and reduced vibration.

  • Braking System: A dual-circuit pneumatic braking system, featuring a WABCO ABS/EBS module, ensures reliable and responsive stopping power. This system significantly enhances safety by preventing wheel lock-up during emergency braking, maintaining trailer stability and control. All air reservoirs and valves are sourced from top-tier suppliers to guarantee leak-free performance.

  • Tires & Wheels: The trailer is fitted with eight high-quality radial tires (plus one spare), typically in size 235/75R17.5, from leading brands like Triangle or Bridgestone. These tires are selected for their high load index, durability, and low rolling resistance, contributing to fuel efficiency. They are mounted on precision-engineered steel rims.

  2.2 Detail-Oriented Advantages: Engineering Excellence in Every Component

  • Hydraulic System: The core of the trailer's functionality lies in its electro-hydraulic power pack. This system utilizes high-pressure, seamless steel tubing and Parker or equivalent hydraulic hoses to minimize the risk of leaks. The multi-valve control block allows for precise, independent operation of each lifting platform, ensuring safe and efficient loading/unloading sequences. A built-in pressure relief valve protects the system from over-pressurization.

  • Landing Gear: JOST or equivalent heavy-duty, two-speed manual landing gear provides a static load capacity of 28 tons. Its robust design ensures stability when the trailer is uncoupled from the tractor.

  • Kingpin: A 2-inch (50mm) or 3.5-inch (90mm) JOST bolt-in kingpin provides a secure and reliable connection to the tractor's fifth wheel. The bolted design allows for easy replacement if necessary.

  • Electrical System: A 24-volt electrical system with a 7-pin socket, compliant with international standards. All wiring is housed in protective conduits, and waterproof LED lights (tail lights, indicators, side markers) are used for enhanced visibility and longevity.

  • Safety & Securing Features: The decks are perforated with lashing holes for versatile vehicle securing. High-strength wheel chocks and ratchet straps are provided to ensure vehicles remain stationary during transit. Non-slip surfaces are applied to walkways for operator safety.

More Details

Manufacturing & Quality Assurance Protocol

The production of the ZW-CCT8 follows a stringent, multi-stage process:

1. CAD/CAM Design: Each trailer is designed using advanced 3D modeling software.

2. CNC Plasma Cutting: Steel plates are cut with high precision using CNC plasma cutters.

3. Automatic Welding: Main beams and key structural components are welded by automated submerged-arc welding robots.

4. Assembly & Alignment: The chassis is assembled on a precision jig to ensure perfect alignment and geometry.

5. Shot Blasting & Painting: The trailer undergoes the comprehensive coating process described in section 2.1.

6. Final Assembly: Installation of axles, suspension, hydraulic, braking, and electrical systems.

7. Quality Control Inspection: A multi-point inspection is conducted at each stage of production.

Rigorous Load Testing Procedures

Before dispatch, every ZW-CCT8 unit is subjected to a comprehensive testing regime:

Static Load Test: The trailer is loaded to 125% of its rated payload capacity and left for a specified period to test the structural integrity of the frame and welds. Deflection measurements are taken to ensure they are within acceptable engineering tolerances.

Dynamic Load Test: A simulated road test is conducted on a specialized track to evaluate the performance of the suspension, braking system, and overall structural durability under dynamic conditions.

Hydraulic System Test: The hydraulic system is cycled multiple times at maximum pressure to check for leaks, cylinder drift, and correct operational speed.

Shipping & Global Logistics

To prevent corrosion during sea transit, the entire trailer is thoroughly waxed before shipment. It is typically shipped via Ro-Ro (Roll-on/Roll-off) vessel or in bulk cargo. For containerized shipping, some disassembly may be required to fit into 40ft High Cube containers, which can reduce shipping costs. Our logistics team provides comprehensive documentation for customs clearance.

Engineering Drawings & Customization

Detailed technical drawings, including dimensional layouts and schematics for the hydraulic and electrical systems, are provided with every order. We offer extensive customization options to meet specific client requirements.