Air Cooler For Cold Room
Brand:RFJ
Model number:RFJ-D4.5E9
Refrigerating Capacity:4.5KW
Air Volume:2x3900m³/h
Fan Voltage:380V
Quantity of Fans：2
Description
High-Efficiency Low-Temperature Architecture
The D4.5E9 ceiling-mounted industrial unit is built specifically for deep-freeze spaces operating down to -35°C, providing a nominal 4.5kW cooling capacity. By utilizing a compact overhead design, this heavy-duty air cooler for cold room maximizes net storage volume while preventing temperature stratification in commercial distribution centers.
Optimized Frost Defrost Resolution
Standard cooling systems frequently encounter restricted airflow and compromised capacities caused by fast ice aggregation on coils. The advanced D4.5E9 air cooler for cold room counters this operational issue with a wide 3FPI (9mm) fin configuration and staggered dual sine wave fins, significantly lengthening the intervals between electric defrost cycles to minimize heat leakage.
Heavy-Duty Metallurgical Endurance
Built for continuous industrial runtime, this robust air cooler for cold room features internally grooved copper tubing to enhance heat transfer efficiency while ensuring a low oil film coefficient. The structural frame consists of high-quality powder-coated steel housing coupled with dual 400mm external rotor motors featuring IP55 protection, all verified through a mandatory 2.8MPa clean air pressure test.
Parameter Table
| Model | D4.5E9 |
| Cooling Capacity | 4.5 kW |
| Air Volume | 2x3900 m³/h |
| Motor Power | 2x180 W |
| Fan Voltage | 380 V |
| Liquid Inlet / Gas Return Diameter | 12 mm / 22 mm |
| Electric Defrost Power | 4.7 kW |
Company Profile
Shenzhen Ruifujie Technology Co., Ltd.
With over two decades of industry-leading manufacturing experience, Ruifujie operates as a large-scale, modern refrigeration enterprise focused on global supply chains. Our diversified production line ranges from high-efficiency scroll, piston, rotary, semi-hermetic, and screw compressors to complete commercial cold room facilities, rapid freezing equipment, and automated ice plants. Fully capable of delivering custom OEM/ODM solutions, we distribute our equipment globally to key international destinations such as the USA, Russia, the UK, the UAE, and Saudi Arabia. Backed by solid technical R&D and outstanding cost performance, Ruifujie sustains reliable partnerships with commercial buyers worldwide.
16+ Years Experience
Sea-near Factory
Freight Cooperation
Global Shipping
Certifications
FAQ
01.What type of environmental conditions is the D4.5E9 model engineered to withstand?
02.How does the inner grooved copper tube design benefit commercial cold storage operations?
03.Which specific refrigerants are compatible with this cooling unit?
04.Does Ruifujie provide options for custom branding and language adjustments on the equipment?
05.What is the standard warranty coverage provided for this range of equipment?
Volume-Based Quotation
Backed by Ruifujie's extensive manufacturing capacity and direct supply network, we provide highly competitive tiered pricing structures for commercial distribution projects. Our team delivers accurate thermal modeling and tailored bulk package discounts to optimize your system procurement costs. Please submit your exact project parameters, required procurement quantities, or structural details today, and our team will provide a comprehensive commercial assessment within hours.
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