Refrigerated Semi-Trailers (2-Axle & 3-Axle)

TS Brothers manufactures refrigerated semi-trailer bodies in both 2-axle and 3-axle configurations, designed for long-distance cold chain transport across international borders and continental routes. These semi-trailer bodies provide the maximum cargo volume achievable within legal dimension limits, making them the workhorse of large-scale cold chain logistics operations.

The 2-axle configuration (typically 13.0m–13.6m length) is optimized for markets with lower gross weight limits or where maneuverability is prioritized. The 3-axle configuration (13.6m length, higher payload capacity) is the standard for European and international long-haul cold chain routes, offering maximum cargo capacity while complying with weight regulations in most countries.

Both configurations use the same FRP+PU sandwich panel construction as our truck bodies, with panel thicknesses optimized for the specific thermal requirements of long-distance transport. The extended operating duration of semi-trailers (routes often spanning 24–48 hours) demands superior insulation performance to minimize refrigeration unit fuel consumption and maintain temperature stability across varying climate zones.

Key Features & Advantages

1. Maximum Cargo Volume Within Legal Limits

Our 13.6m refrigerated semi-trailer body provides up to 82 m³ of cargo volume - the maximum achievable within standard European and international dimension limits (13.6m × 2.55m × 2.70m internal). This maximizes revenue per trip and reduces the cost per unit of cargo transported. Internal height can be specified up to 2.70m for palletized cargo compatibility.

2. Optimized Panel Thickness for Long-Distance Transport

Semi-trailer bodies feature 85mm side/front panels and 105mm roof/floor panels as standard, with optional 120mm panels for ultra-low temperature applications. The thicker roof panel is critical for semi-trailers operating in high-sun regions, as roof solar gain is the largest single source of thermal load in refrigerated transport.

3. Dual Temperature Zone Option

For operators transporting mixed cargo (e.g., chilled and frozen), we offer a movable partition wall that creates two independent temperature zones within a single trailer. Each zone has its own refrigeration unit and temperature controller, enabling simultaneous transport of goods at different temperature requirements - maximizing load efficiency and reducing trip costs.

4. Heavy-Duty Floor for Forklift Loading

The semi-trailer floor features reinforced construction with embedded pine beams and an aluminum T-plate or checkered plate surface, rated for forklift loading up to 2.5 tons per axle. This enables efficient warehouse loading/unloading operations without weight restrictions, critical for high-volume distribution centers.

5. Aerodynamic Front Panel Design

The front panel is engineered with a slight aerodynamic profile that reduces air resistance at highway speeds, improving fuel efficiency by an estimated 3–5% over flat-front designs. For operators covering 100,000+ km annually, this fuel savings can exceed $2,000 per year per trailer.

6. Multi-Door & Loading Options

Standard configuration includes rear double doors. Optional features include: side doors (curbside and/or roadside) for multi-stop distribution; curtain-side configuration for rapid loading; and rear roll-up doors for dock-loading operations. Door configurations can be customized based on the operator's loading/unloading workflow.

2-Axle vs 3-Axle Comparison

Technical Specifications

Applications

Long-Distance Cold Chain Transport

Refrigerated semi-trailers are the backbone of cross-border and intercity cold chain logistics. Routes of 500–2,000+ km connecting production centers (farms, factories, ports) with distribution hubs, wholesale markets, and retail centers rely on semi-trailers for their combination of cargo volume, temperature stability, and cost-efficiency per ton-kilometer.

Port-to-Inland Distribution

Imported frozen and chilled goods (seafood, meat, dairy) arriving at seaports are transported to inland distribution centers via refrigerated semi-trailers. The extended insulation performance maintains product quality during the 12–48 hour inland journey, even when the trailer is held at port or border crossings.

Multimodal Transport

Refrigerated semi-trailers can be transferred between road and rail (rolling highway) or loaded onto RoRo (Roll-on/Roll-off) ferries for maritime transport. The self-contained refrigeration system (with independent diesel unit) maintains temperature during rail and sea segments of multimodal routes.

Dual-Temperature Distribution

Supermarket distribution centers use dual-temperature semi-trailers to deliver both chilled (+2°C) and frozen (-18°C) products to retail stores in a single trip. The movable partition wall can be repositioned based on each store's product mix, maximizing load efficiency.

Frequently Asked Questions (FAQ)

Q:Should I choose 2-axle or 3-axle configuration?

A:Choose based on your operating jurisdiction's weight regulations and your typical cargo weight. In Europe and most international markets, 3-axle is standard for maximum payload (~26 tons). In markets with lower gross weight limits or on routes with weight-restricted bridges, 2-axle may be required. If your cargo is volume-limited rather than weight-limited (e.g., light but bulky products), 2-axle offers better fuel economy and lower tire costs. Contact us with your typical route and cargo specifications for a recommendation.

Q:What refrigeration unit do you recommend for a semi-trailer?

A:For long-distance routes, we recommend independent diesel-powered units (Thermo King SLXe/Carrier Vector) that don't depend on the tractor engine. This allows temperature maintenance during driver rest stops, border crossings, and ferry transport. For shorter routes, tractor-driven units (powered by the truck's PTO) are more economical. For multi-temperature zones, dual-evaporator systems are required. Our team can specify the optimal unit based on your route length, temperature requirements, and ambient conditions.

Q:Can the semi-trailer body be exported as CKD kits?

A:Yes. We offer CKD kits for semi-trailer bodies, with 2–3 kits per 40ft container. CKD semi-trailer kits require more assembly time (4–6 days with 3–4 technicians) than standard truck body kits due to the larger panel size and more complex chassis integration. We provide detailed assembly instructions and remote support for semi-trailer CKD assembly.

Q:What is the expected fuel consumption of the refrigeration unit?

A:Independent diesel refrigeration units consume approximately 1.5–2.5 liters of diesel per hour, depending on ambient temperature, setpoint temperature, and door opening frequency. At an annual operation of 4,000 hours, this translates to 6,000–10,000 liters of diesel per year. Our 105mm roof panels (vs standard 80mm) can reduce refrigeration fuel consumption by 15–20% by minimizing solar heat gain.

Q:Do you provide ATP certification for the semi-trailer body?

A:Yes. All our refrigerated semi-trailer bodies can be manufactured to meet ATP Class A (FRC - Refrigerated) or ATP Class A (FRN - Refrigerated, Normally insulated) standards. We provide ATP test certificates from authorized testing agencies for an additional fee. ATP certification is required for international transport of perishable foodstuffs under the ATP Agreement.