The D7.3E9 is a ceiling-mounted unit cooler specifically designed for low-temperature cold storage facilities, deep-freezing rooms, and industrial food processing applications operating at room temperatures down to -35°C. Delivering a nominal cooling capacity of 7.3 kW, this refrigeration evaporator ensures continuous, efficient thermal drawdown to maintain cargo freshness and prevent temperature fluctuations.

In low-temperature freezing environments, rapid frost buildup on evaporator coils frequently leads to airflow restriction, extended defrost cycles, and excessive power draw. The D7.3E9 resolves these operational issues through a wide 9 mm fin pitch (3 FPI) structure coupled with three φ400 mm low-temperature axial fan motors. This configuration produces a strong air volume of 11,700 m³/h with an air throw distance of 10 meters, delaying frost bridge formation while guaranteeing uniform air circulation across the storage room.

Built with high-grade stainless steel heating elements, insulated connectors, and low-temperature epoxy-encapsulated wiring, the D7.3E9 incorporates an 8.5 kW electric defrost system with dedicated heating tubes in both the fin block and drain pan for complete ice removal. Each coil is factory pressure-tested with clean air at 2.8 MPa, features IP55 waterproof fan protection, and supports multi-refrigerant compatibility including R507A, R404A, R23, R134a, and R22.

Ruifujie brings over 20 years of manufacturing excellence to the commercial and industrial refrigeration sector. Our core product portfolio features scroll, reciprocating, rotary, semi-hermetic, and screw refrigeration compressors, alongside complete cold room setups, quick-freezers, and ice machines. Dedicated to meeting worldwide B2B standards, Ruifujie provides versatile OEM/ODM customization services. Our equipment is exported to major global markets including the United States, Russia, the United Kingdom, Saudi Arabia, and the UAE, earning broad customer approval for high performance and cost-efficient reliability.

Backed by 20 years of engineering expertise, Ruifujie assists international clients in configuring the precise refrigeration evaporator setup for any cold storage project. Share your project specifications—including target room dimensions, operating temperature, preferred refrigerant, and order quantity—and our engineering team will provide tailored technical guidance and a quick quote within 8 hours.