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Created with Pixso. Home Created with Pixso. Products Created with Pixso.
Refrigeration Evaporator
Created with Pixso. Walkin Cooler Unit

Walkin Cooler Unit

Brand Name: Ruifujie
Model Number: RFJ-D7.7E4.5
MOQ: 1
Price: Discussed
Delivery Time: 1 Month
Payment Terms: T/T,Western Union
Detail Information
Place of Origin:
China
Model:
RFJ-D7.7E4.5
MOQ:
1Sets
Nominal Refrigeration Capacity:
7.7KW
Packing:
Woodcase Packing
Warranty:
1year
Application:
Cold Room,Freezer
Matched Area:
55㎡
Fan Power:
2x145W
Packaging Details:
WOODEN CASE
Supply Ability:
100PC
Product Description
Walkin Cooler Unit
Product Advantages
High-Efficiency Heat Exchange Performance

The D7.7E4.5 walkin cooler unit is a high-efficiency industrial-grade evaporator engineered specifically for medium-to-high temperature cold rooms and commercial storage facilities. Featuring an optimized layout with dual premium external rotor motors, this unit delivers balanced airflow and stable climate management to maintain a consistent internal environment. It is ideal for fruit and vegetable warehouses, floral storage, and commercial food distribution centers requiring a reliable walkin cooler unit to maximize shelf life and product quality.

Industry Pain Points & Solutions

Fluctuating cold room temperatures and poor thermal efficiency frequently result in premature food spoilage and high electricity costs for refrigeration operations. The D7.7E4.5 walkin cooler unit tackles these issues directly with inner-grooved copper tube technology, which vastly expands the internal heat transfer area while minimizing the oil film thermal resistance. Its advanced staggered tube layout and sine-wave aluminum fins accelerate heat exchange, ensuring immediate cooling and reducing system runtime to curb energy expenses.

Material Engineering & Environmental Adaptability

Built to withstand harsh refrigeration environments, this evaporator features a compact housing made from high-quality prepainted steel or optional stainless steel sheets to provide supreme corrosion resistance. The integrated defrosting system utilizes premium stainless steel heating elements placed individually in both the coil block and the drain pan to eliminate frost accumulation cleanly and efficiently. The entire assembly undergoes a rigorous 2.8 MPa pressure test to ensure long-term, leak-free operation with eco-friendly refrigerants.

Product Images
D7.7E4.5 Walkin Cooler Unit - Industrial evaporator for commercial cold rooms
Technical Specifications
Parameter Value
Model D7.7E4.5
Nominal Cooling Capacity 7.7 KW
Air Volume 2*2200 m³/h
Fan Power 2*145 W
Voltage 220/380 V
Liquid Inlet / Suction Outlet 12 mm / 19 mm
Defrost Power 3.5 KW
Company Profile

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.

Ruifujie manufacturing facility and production line Ruifujie warehouse and inventory management system
Packaging and Shipping
Ruifujie packaging and shipping process for refrigeration units
Frequently Asked Questions
Q1: What are the main advantages of the inner-grooved copper tubes used in the D7.7E4.5 unit?
A1: The inner-grooved design substantially increases the internal tube surface area and lowers the oil film thermal resistance. Combined with the staggered arrangement, it vastly enhances heat transfer efficiency compared to smooth tubes.
Q2: Is this evaporator suitable for high-humidity cold room environments?
A2: Yes, the casing is crafted from premium prepainted steel and aluminum plate materials with options for stainless steel 304/316, ensuring strong anti-corrosion properties even under high-moisture conditions.
Q3: What kind of defrost system does this model utilize?
A3: This model uses electric defrosting (indicated by the "E" in the model name). It features high-insulated stainless steel heating tubes installed in both the coil core and independently in the water drain pan for thorough frost removal.
Q4: What is the standard lead time for bulk orders and samples?
A4: In-stock samples can be dispatched within 3 days, while complete bulk production orders typically require 10 to 15 working days for delivery.
Q5: Can Ruifujie print our company logo or supply customized nameplates for this product?
A5: Yes, we fully support OEM customization services, allowing for multi-language nameplates, custom logos, and specific branding packages based on your requirements.
Technical Selection Support

Ruifujie provides professional engineering assessment and model selection guidance for worldwide cold chain systems. Send your specific room dimensions, required storage temperatures, and voltage standards, and our technical team will deliver a customized quote and drawing package within 8 hours.

Related Products
Good price online

Products Details

Created with Pixso. Home Created with Pixso. Products Created with Pixso.
Refrigeration Evaporator
Created with Pixso. Walkin Cooler Unit

Walkin Cooler Unit

Brand Name: Ruifujie
Model Number: RFJ-D7.7E4.5
MOQ: 1
Price: Discussed
Packaging Details: WOODEN CASE
Payment Terms: T/T,Western Union
Detail Information
Place of Origin:
China
Brand Name:
Ruifujie
Model Number:
RFJ-D7.7E4.5
Model:
RFJ-D7.7E4.5
MOQ:
1Sets
Nominal Refrigeration Capacity:
7.7KW
Packing:
Woodcase Packing
Warranty:
1year
Application:
Cold Room,Freezer
Matched Area:
55㎡
Fan Power:
2x145W
Minimum Order Quantity:
1
Price:
Discussed
Packaging Details:
WOODEN CASE
Delivery Time:
1 Month
Payment Terms:
T/T,Western Union
Supply Ability:
100PC
Product Description
Walkin Cooler Unit
Product Advantages
High-Efficiency Heat Exchange Performance

The D7.7E4.5 walkin cooler unit is a high-efficiency industrial-grade evaporator engineered specifically for medium-to-high temperature cold rooms and commercial storage facilities. Featuring an optimized layout with dual premium external rotor motors, this unit delivers balanced airflow and stable climate management to maintain a consistent internal environment. It is ideal for fruit and vegetable warehouses, floral storage, and commercial food distribution centers requiring a reliable walkin cooler unit to maximize shelf life and product quality.

Industry Pain Points & Solutions

Fluctuating cold room temperatures and poor thermal efficiency frequently result in premature food spoilage and high electricity costs for refrigeration operations. The D7.7E4.5 walkin cooler unit tackles these issues directly with inner-grooved copper tube technology, which vastly expands the internal heat transfer area while minimizing the oil film thermal resistance. Its advanced staggered tube layout and sine-wave aluminum fins accelerate heat exchange, ensuring immediate cooling and reducing system runtime to curb energy expenses.

Material Engineering & Environmental Adaptability

Built to withstand harsh refrigeration environments, this evaporator features a compact housing made from high-quality prepainted steel or optional stainless steel sheets to provide supreme corrosion resistance. The integrated defrosting system utilizes premium stainless steel heating elements placed individually in both the coil block and the drain pan to eliminate frost accumulation cleanly and efficiently. The entire assembly undergoes a rigorous 2.8 MPa pressure test to ensure long-term, leak-free operation with eco-friendly refrigerants.

Product Images
D7.7E4.5 Walkin Cooler Unit - Industrial evaporator for commercial cold rooms
Technical Specifications
Parameter Value
Model D7.7E4.5
Nominal Cooling Capacity 7.7 KW
Air Volume 2*2200 m³/h
Fan Power 2*145 W
Voltage 220/380 V
Liquid Inlet / Suction Outlet 12 mm / 19 mm
Defrost Power 3.5 KW
Company Profile

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.

Ruifujie manufacturing facility and production line Ruifujie warehouse and inventory management system
Packaging and Shipping
Ruifujie packaging and shipping process for refrigeration units
Frequently Asked Questions
Q1: What are the main advantages of the inner-grooved copper tubes used in the D7.7E4.5 unit?
A1: The inner-grooved design substantially increases the internal tube surface area and lowers the oil film thermal resistance. Combined with the staggered arrangement, it vastly enhances heat transfer efficiency compared to smooth tubes.
Q2: Is this evaporator suitable for high-humidity cold room environments?
A2: Yes, the casing is crafted from premium prepainted steel and aluminum plate materials with options for stainless steel 304/316, ensuring strong anti-corrosion properties even under high-moisture conditions.
Q3: What kind of defrost system does this model utilize?
A3: This model uses electric defrosting (indicated by the "E" in the model name). It features high-insulated stainless steel heating tubes installed in both the coil core and independently in the water drain pan for thorough frost removal.
Q4: What is the standard lead time for bulk orders and samples?
A4: In-stock samples can be dispatched within 3 days, while complete bulk production orders typically require 10 to 15 working days for delivery.
Q5: Can Ruifujie print our company logo or supply customized nameplates for this product?
A5: Yes, we fully support OEM customization services, allowing for multi-language nameplates, custom logos, and specific branding packages based on your requirements.
Technical Selection Support

Ruifujie provides professional engineering assessment and model selection guidance for worldwide cold chain systems. Send your specific room dimensions, required storage temperatures, and voltage standards, and our technical team will deliver a customized quote and drawing package within 8 hours.

Related Products