3-Axle Refrigerated Semi-trailer | Ultra-Low Temperature, High-Seal, Intelligent Cold Chain Transport Solution

The Dongrun 3-Axle Refrigerated Semi-trailer is a high-performance specialized vehicle engineered for modern cold chain logistics. It features superior thermal insulation, high load capacity, full safety protection, and intelligent manufacturing, making it suitable for demanding transportation environments.

The chassis is constructed from Q690 and AC700 high-strength steel, with robot-precision welding technology that increases bending strength by 35%, ensuring long-term structural integrity under heavy loads.

The insulation layer thickness ranges from 60–102mm, using polyurethane foam panels to effectively block external heat and maintain consistent internal temperature.

Key Features:

Outstanding Thermal Insulation & Cooling Performance:

Specialized insulation materials enable operation in extreme conditions down to -50°C;

Precise temperature control extends shelf life of perishables like fruits and vegetables, ideal for green channels, cold chain, and multi-modal transport.

High-Strength Lightweight Design:

Built with Q690/AC700 high-strength steel and robotic welding, increasing bending resistance by 35%;

Tare weight only 8,300 kg, reducing fuel consumption and maximizing payload.

Full Safety Protection System:

Dual-circuit independent braking system allows emergency braking even if one circuit fails;

Pre-installed ABS/EBS wiring channels with waterproof connectors (IP67 rated);

360° reflective warning strips + imported LED lights for enhanced visibility in rain/fog, improving night-time safety.

High Durability & Cost Efficiency:

Critical components require no maintenance for up to 100,000 km, reducing annual repair costs by 40%;

Equipped with 12-layer radial tires, each capable of carrying 3.5 tons, with 40% higher impact resistance for rough roads.

Smart Customization & Quality Assurance:

Backed by national high-tech enterprise status, featuring automated paint lines and smart production systems;

Supports customization in size, configuration, and operating conditions;

Certified to ISO9001 and CCC standards, with nationwide service network and export to multiple countries.

Widely used in fresh food delivery, pharmaceutical cold chains, and international trade—this trailer delivers reliable, efficient, and safe cold chain transportation.