Cold Room Evaporator Unit
Brand:RFJ
Model number:RFJ-D3.5E4.5
Refrigerating Capacity:3.5KW
Air Volume:2200m³/h
Fan Voltage:220V / 380V
Quantity of Fans:1
Description
Space-Saving Cooling Performance
The D3.5E4.5 cold room evaporator unit represents a next-generation ceiling-embedded cooling solution meticulously developed for medium and high-temperature cold storage environments. Purpose-built to deliver a precise 3.5 kW nominal cooling capacity at a standard 0°C warehouse baseline, this ultra-compact cold room evaporator unit maximizes usable storage volume. It serves as a highly dependable thermal management system for micro-cold storage rooms, fresh food processing cells, and commercial catering refrigeration vaults where spatial footprints are severely constricted.


Advanced Airflow and Thermal Optimization
Small-scale walk-in freezers often struggle with localized hot spots and rapid food dehydration due to stagnant air circulation and poor heat transfer. The D3.5E4.5 cold room evaporator unit successfully tackles these operational bottlenecks by utilizing a staggered mechanical copper tube assembly paired with custom dual sine wave louvered fins. This design drastically optimizes internal aerodynamic flow and lowers the oil film thermal resistance coefficient, achieving exceptionally swift heat dissipation and highly uniform temperature distributions.
Rugged Build Quality & Flexible Integration
Engineered for enduring industrial service under wet, corrosive conditions, this air cooler features a robust high-grade steel exterior covered in a specialized anti-corrosive powder finish. It is driven by an advanced low-temperature external rotor motor that features an IP55 ingress protection rating and Class F electrical insulation to secure low-noise performance from -40°C up to 60°C. The system provides extensive multi-refrigerant compatibility (R404A, R507A, R23, R134a, R22) and undergoes an mandatory 2.8 MPa clean air pressure test to guarantee absolute operational sealing.

Parameter Table
| Model | D3.5E4.5 |
| Nominal Cooling Capacity | 3.5 kW |
| Air Volume | 2200 m³/h |
| Motor Power | 145 W |
| Fan Voltage | 220 V / 380 V |
| Liquid Inlet / Gas Return Diameter | 12 mm / 16 mm |
| Electric Defrost Power | 2.2 kW |
Company Profile

Shenzhen Ruifujie Technology Co., Ltd.
Ruifujie stands as a prominent, modernized refrigeration pioneer backed by more than 20 years of robust manufacturing and engineering expertise. Our core product range covers industrial-grade scroll, piston, rotor, semi-hermetic, and screw-type refrigeration compressors, which seamlessly pair with our custom cold storage facilities, blast freezers, and industrial ice makers. We offer professional, comprehensive OEM/ODM customization services to adapt equipment to any regional voltage or dimension setup. Ruifujie's systems are exported to major worldwide destinations-including the USA, UK, UAE, Saudi Arabia, and Russia-earning exceptional praise from global procurement managers for superior cost-performance and flawless reliability.
16+ Years Experience
Sea-near Factory
Freight Cooperation
Global Shipping
Certifications






FAQ
01.What are the target storage conditions for the D3.5E4.5 cold room evaporator unit?
02.What enables this specific model to achieve such high thermal efficiency?
03.What is Ruifujie's standard production turnaround time for mass orders?
04.Can you customize the pipe connection size to match our existing refrigeration system?
05.What are your standard terms of trade and logistics packaging details?

Custom Configuration Service
As an established, direct-to-factory manufacturer, Ruifujie provides dedicated OEM/ODM adaptation options to ensure our cold room evaporator unit perfectly integrates into your pre-existing compressor layouts. We provide tailored engineering configuration support to match non-standard system demands and varying international electrical grids. Please submit your detailed project parameters, required cooling load capacities, or target purchasing quantities, and our application engineering department will deliver a comprehensive configuration proposal within 8 hours.
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