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Shenzhen Ruifujie Technology Co., Ltd.

  • China,Shenzhen ,Guangdong
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China Air Cooler For Cold Room
China Air Cooler For Cold Room

  1. China Air Cooler For Cold Room
  2. China Air Cooler For Cold Room
  3. China Air Cooler For Cold Room
  4. China Air Cooler For Cold Room

Air Cooler For Cold Room

  1. MOQ: 1
  2. Price: Discussed
  3. Get Latest Price
Fan Power 2x180W
Model RFJ-D7.7E6
Nominal Refrigeration Capacity 7.7KW
Supply Ability 100PC
Application Cold Room,Freezer
Payment Terms T/T,Western Union
Matched Area 60㎡
Delivery Time 1 Month
Packing Woodcase packing
Packaging Details WOODEN CASE
Warranty 1year
MOQ 1Sets
Model Number RFJ-D7.7E6
Place of Origin China
Brand Name Ruifujie

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  1. Product Details
  2. Company Details

Product Specification

Fan Power 2x180W Model RFJ-D7.7E6
Nominal Refrigeration Capacity 7.7KW Supply Ability 100PC
Application Cold Room,Freezer Payment Terms T/T,Western Union
Matched Area 60㎡ Delivery Time 1 Month
Packing Woodcase packing Packaging Details WOODEN CASE
Warranty 1year MOQ 1Sets
Model Number RFJ-D7.7E6 Place of Origin China
Brand Name Ruifujie
Air Cooler For Cold Room
Product Advantages
Steady Temperature Control for Frozen Storage

Keeping medium-to-low temperature storage spaces at a stable -18°C requires consistent, reliable circulation. The D7.7E6 air cooler for cold room uses dual 400 mm external rotor fans to distribute cold air evenly across storage racks. By providing a broad air throw of up to 10 meters, this air cooler for cold room eliminates warm pockets and dead zones, ensuring reliable temperature consistency for food processing plants and distribution hubs.

Optimized 6.0 mm Fin Spacing to Reduce Frost Build-up

Frost build-up is a constant challenge for operators running continuous sub-zero operations. This air cooler for cold room features an inner-grooved staggered copper tube design paired with a wide 6.0 mm fin pitch. The wider fin spacing significantly delays frost bridging between the aluminum fins, reducing the frequency of energy-consuming defrost shutdowns and keeping the heat transfer rate high even under heavy cold storage loads.

Heavy-Duty Casing and Split Defrosting

Designed to withstand humid freezing environments, the outer casing is built from corrosion-resistant prepainted steel and rugged aluminum sheets. To make maintenance simple, the 4.7 KW electric defrost system is strategically split between the main evaporator coil and the drain pan, preventing melted ice from refreezing during discharge. To ensure absolute field reliability, every unit is pressure-tested at 2.8 MPa before dispatch.

Product Images
D7.7E6 Air Cooler for Cold Room Unit
Technical Specifications
Parameter Value
Model D7.7E6
Nominal Cooling Capacity 7.7 KW
Air Volume 2*3900 m³/h
Fan Power 2*180 W
Voltage 380 V
Liquid Inlet / Suction Outlet 12 mm / 22 mm
Defrost Power 4.7 KW
Company Profile

With over two decades of manufacturing expertise in the industrial refrigeration sector, Ruifujie has established itself as a dependable supplier of high-efficiency systems. Our product portfolio includes advanced refrigeration compressors—spanning scroll, screw, and semi-hermetic designs—alongside commercial walk-in cold rooms, blast freezers, and industrial ice machines. Thanks to our automated production lines and deep engineering capability, we provide flexible OEM/ODM customization to meet specific corporate project demands. Ruifujie systems are built for long-term field stability and are exported to clients globally, including the United States, Saudi Arabia, and the United Kingdom.

Ruifujie Manufacturing Facility Warehouse and Inventory Management
Packaging and Shipping
Packaging and Shipping Process
Frequently Asked Questions
Q1: How does the staggered tube pattern inside the D7.7E6 improve thermal performance?
Staggering the copper tubes forces the passing air into a curved, wavy flow path. This increases the contact time between the air and the cold tube surfaces, boosting overall heat transfer efficiency compared to standard inline configurations.
Q2: What advantages do the dual 400 mm external rotor fans have over traditional internal rotor motors?
External rotor motors are integrated directly into the fan blade hub. This compact design results in higher mechanical efficiency, better heat dissipation, and a more compact footprint, while still delivering a powerful 10-meter air throw.
Q3: Why is the drainage pan equipped with its own independent defrost heating elements?
During a defrost cycle, melted frost runs down into the cold drain pan. Without a dedicated heater in the pan itself, this water would instantly refreeze and clog the 1" drain line. The separate heater keeps the pan warm enough to ensure complete drainage.
Q4: What is your warranty policy for commercial refrigeration projects?
We provide a 1-year warranty on all evaporator units, which covers manufacturing defects. We also maintain a rapid-response parts replacement service to minimize downtime for your cold storage operations.
Q5: What is the typical lead time for an order of 10 to 20 evaporator units?
Standard models can be assembled, pressure-tested, and ready for shipment within 10 to 15 business days. If custom shell materials (like stainless steel) or non-standard voltages are requested, the lead time is typically extended by an additional 5 working days.
Custom Engineering & Support

At Ruifujie, we understand that every cold room layout has unique requirements. Whether you are a commercial contractor or an industrial distributor, our team can help tailor equipment to fit your exact needs. Contact us today with your room dimensions, target storage temperatures, and electrical standards, and we will provide a detailed technical recommendation and pricing quote within 8 hours.

Company Details

Bronze Gleitlager

,

Bronze Sleeve Bushings

 and 

Graphite Plugged Bushings

 from Quality China Factory
  • Business Type:

    Manufacturer,Distributor/Wholesaler,Exporter

  • Year Established:

    2006

  • Total Annual:

    44000000-60000000

  • Employee Number:

    110~115

  • Ecer Certification:

    Verified Supplier

Shenzhen Ruifujie Technology Co., Ltd is a leading supplier of high-quality compressors for a wide range of industries and applications. With over 14 years of experience in the industry, we have built a reputation for providing exceptional products and services to our customers.   &nb... Shenzhen Ruifujie Technology Co., Ltd is a leading supplier of high-quality compressors for a wide range of industries and applications. With over 14 years of experience in the industry, we have built a reputation for providing exceptional products and services to our customers.   &nb...

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Get in touch with us

  • Reach Us
  • Shenzhen Ruifujie Technology Co., Ltd.
  • Building 1, Kangli city, No. 66 Pingji Road, Longgang District, Shenzhen Guangdong China
  • https://www.refrigerationdevice.com/

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