As e-commerce for fresh produce, the pre-prepared meal industry, and the outdoor camping economy continue to boom, a type of portable refrigerated trailer—dubbed "mobile cold storage"—is gradually expanding beyond the specialized logistics sector into a wider array of commercial applications. Thanks to their flexible deployment and "plug-and-play" capabilities, these units are effectively resolving the temperature-control challenges inherent in the "last mile" of cold chain logistics, establishing themselves as a critical link connecting production sites to end consumers.

As global demands for food preservation and pharmaceutical safety become increasingly stringent, portable refrigerated trailers—core equipment for temperature-controlled transportation—are undergoing an unprecedented green technology revolution. Refrigeration units that once relied on the roar of diesel engines are being replaced by quiet batteries and clean solar energy. From technological research and development to practical application, a series of innovations indicate that the zero-emission era of cold chain logistics is accelerating.

Portable refrigerated trailers, as an efficient and flexible cold chain transportation solution, have attracted widespread attention globally in recent years. With technological advancements and changing market demands, this industry is undergoing profound transformation, moving towards greater intelligence, environmental friendliness, and diversification.

In today's global cold chain logistics system, which continuously strives for efficiency and deeper coverage, a more flexible and adaptable mobile refrigeration equipment is becoming the focus of market attention – the portable refrigerated trailer. Compared to standardized large container refrigeration units, these small and medium-sized refrigerated units, which can be flexibly towed by standard trucks or tractor units, are quietly extending the cold chain network to the "capillary" level with their unparalleled mobility and adaptability to various scenarios, reaching logistics endpoints that traditional fixed facilities and large equipment cannot easily access.