The D15.0E4.5 cooling unit for cold storage is designed specifically for medium-and-high temperature storage applications requiring dependable and high-capacity thermal control. Configured with dual heavy-duty 400 mm external rotor fans, this ceiling-mounted evaporator produces a powerful, uniform air volume that covers medium-to-large interior areas without leaving stagnant pockets of warm air. For modern warehousing operators seeking a robust cooling unit for cold storage, this system offers immediate temperature drawdown, securing food freshness and commercial stock stability.

In larger commercial refrigeration infrastructure, maintaining strict temperature ranges while containing electrical usage requires optimized evaporator internal physics. The core of this cooling unit for cold storage leverages an inner-grooved copper tube layout that dramatically increases the refrigerant contact surface area and minimizes oil film thermal resistance. These tubes are structured in an industry-proven staggered orientation alongside 4.5 mm pitch sine-wave aluminum fins with open-window contours, significantly compounding the overall heat exchange velocity within a compact spatial layout.

Engineered to resist the corrosive effects of constant low-temperature moisture, the system is encased in premium prepainted steel and tightly fitted aluminum tube sheets. This cooling unit for cold storage relies on a thoroughly distributed electric defrost setup featuring high-insulation stainless steel heating elements fitted across the coil block and independently inside the drainage pan to clear ice cleanly. Furthermore, the complete assembly passes a strict 2.8 MPa clean air pressure verification test at the factory to guarantee leak-proof safety across various fluorinated refrigerant architectures.

Ruifujie is a modernized, large-scale manufacturing enterprise backed by over 20 years of expertise in the commercial refrigeration industry. We specialize in the development and production of scroll, piston, rotary, semi-hermetic, and screw refrigeration compressors, alongside an extensive range of cold room walk-in coolers, blast freezers, and industrial ice machines. Empowered by robust technical capability, our factory provides comprehensive OEM/ODM customization services tailored to unique client requirements worldwide. Today, Ruifujie products are exported across the globe--including Russia, the United States, the United Kingdom, the UAE, and Saudi Arabia--earning an outstanding reputation for excellent cost-effectiveness and exceptional stability.