The Gruppo Rolfo division specialising in isothermal bodywork and refrigerated semi-trailers chose Transpotec to present a vehicle developed with a focus on sustainability, operational efficiency and maximum protection of the cold chain. It is called Rolfo Ice and the project is based on a high-efficiency insulated structure, built with latest-generation isothermal panels in fibreglass and polyurethane, designed to ensure minimal heat loss and a constant temperature even during particularly demanding operations.
The most innovative element, however, is the cryogenic system powered by liquid nitrogen, a technology that can rapidly reduce the internal temperature of the load compartment, drastically cutting the time needed to bring the semi-trailer back to the required levels after door-opening and unloading operations. The principle uses the expansion of liquid nitrogen which, as it changes into a gaseous state, quickly absorbs heat and creates an immediate cooling effect.
In construction terms, the vehicle retains the features that have consolidated the Piedmont-based brand’s reputation in the isothermal sector: structural strength, high load capacity, easily washable internal surfaces and solutions designed to simplify operational activities. The modular nature of the fittings also allows the semi-trailer to be adapted to the specific needs of fleets, logistics operators and specialist hauliers. It is a particularly interesting solution for urban transport and distribution involving multiple delivery points, where repeated tailgate opening cycles put traditional mechanical refrigeration units under pressure. With Rolfo Ice, rapid cooling helps keep the internal temperature stable even during frequent deliveries, protecting fresh, frozen and pharmaceutical products.
Attention has also focused on environmental aspects. The use of nitrogen reduces noise and local emissions compared with traditional diesel units, an important advantage especially for night-time deliveries in urban centres and in areas subject to increasingly strict environmental restrictions. This is now a key issue in refrigerated logistics, where interest in alternative and sustainable technologies is growing. The new isothermal vehicle presented in Milan also confirms Rolfo Ice’s industrial strategy, which is increasingly centred on digitalisation and advanced control of the cold chain. The semi-trailer can integrate remote temperature monitoring systems, telematics-based data management and multi-temperature configurations for large-scale retail distribution and pharmaceutical transport.
Massimiliano Barberis
