What is an Isothermal Trailer?

An Isothermal Trailer is a specially designed transport vehicle equipped with insulated body panels to maintain a stable internal temperature. Unlike refrigerated trailers, it does not actively cool or heat the cargo but rather preserves the temperature of the goods loaded inside, preventing rapid thermal exchange with the external environment. It is suitable for goods that require a constant temperature and avoid temperature fluctuations, but do not require a refrigeration unit.

26 ft Heavy Duty Refrigerated Truck Box Manufacturers

Services for Isothermal Trailer Construction

We provide solutions for the construction of isothermal trailers, ranging from small-sized trailers to heavy-duty, long-haul trucks, tailored to meet diverse transportation needs.

Body Size

Trailer TypeLength (m)Width (m)Height (m)
Small duty3.0 – 4.21.8 – 2.21.8 – 2.0
Medium duty4.2 – 6.02.2 – 2.52.0 – 2.5
Large duty6.0 – 13.62.4 – 2.62.5 – 3.0
(Note: These are general references; actual sizes may vary by manufacturer and country regulations.)

Customized Solutions for Isothermal Trailers

As a professional modular box body manufacturer, TOPOLO offers complete solutions for the construction of isothermal trailers — from design to production and assembly.

Trailer Body Design

We have a professional team specializing in thermal insulation and aerodynamic body structure design, dedicated to optimizing body strength, weight, and thermal insulation performance.

The trailer body features a highly modular design, which not only facilitates quick assembly and disassembly but also makes subsequent maintenance and expansion more flexible.


Composite Panel Manufacturing

We produce one-piece composite panels with high structural integrity and superior thermal insulation performance, ensuring durability and effectively reducing heat transfer.

The vehicle body panels are a perfect combination of UV-resistant GRP material and insulating foam.

  • The panels are smooth and flat, with various surface colors available.
  • Custom thickness, length, and width are also available.

Customized Accessories

We can custom-develop standard or non-standard accessories to meet your needs, such as hinges, locks, seals, frames, and corner fittings, to perfect every detail of the trailer.


Trailer Chassis Supply

TOPOLO provides both aluminum and steel chassis solutions designed to match your payload capacity, operating conditions, and budget. All chassis are engineered with advanced anti-corrosion treatments, ensuring exceptional durability and long service life even under harsh environments.


Flexible Assembly Solutions

TOPOLO supports multiple assembly options to meet your project requirements.

  • CKD (Completely Knocked Down): Fully disassembled kits for local assembly.
  • SKD (Semi Knocked Down): Partial assembly for efficiency and reduced logistics cost.
  • CBU (Completely Built-Up): Fully assembled trailers ready for operation.