Cold Room Cooling Unit
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Cold Room Cooling Unit

Cold Room Cooling Unit

Brand:RFJ
Model number:DSD-3.7/22
Refrigerating Capacity:3.7KW
Nominal Area:22㎡
Coil Internal Volume:2.3L
Quantity of Fans:2

Description

Soft Dual-Side Air Supply for Medium-Temp Food Processing Storage

 

The DSD-3.7/22 cold room cooling unit is a compact double outlet air cooler engineered for medium-temperature warehouses and food processing workshops (operating above 8℃). With a 22㎡ heat exchange surface, stable 3700W cooling power and exclusive 6mm wide fin spacing, this refrigeration evaporator delivers gentle, even dual-direction airflow. It eliminates localized overcooling and protects sensitive fresh food, making it the ideal small-scale cooling solution for food sorting and light bulk storage.

 

product-1000-1000
Refrigeration Evaporator

Wide 6mm Fin Spacing Reduces Frost Blockage & Cuts Maintenance Workload

 

Medium-temperature cold rooms handling fruits, vegetables and fresh ingredients carry high humidity that easily clogs narrow fin air coolers with thick frost, forcing frequent shutdown cleaning. This cold room cooling unit adopts a specialized 6mm fin gap design, greatly slowing frost accumulation on coils. Its matched 1600W coil and water dish defrost heating elements shorten defrost duration, lowering monthly maintenance labor and minimizing production downtime for food processing lines.

Corrosion-Proof Aluminum Cabinet & Low-Noise External Rotor Motor

 

Built for long-term humid food workshop environments, the whole housing uses powder-coated aluminum sheet to resist moisture and chemical corrosion from food cleaning water vapor. Staggered copper tube-aluminum fin coils are mechanically expanded for tight bonding and efficient heat exchange. Fitted with quiet external rotor fan motors, the dual φ350 fans run at low noise levels, creating a comfortable working environment for on-site food sorting staff without disturbing daily operation.

unit cooler

Parameter Table

Model DSD-3.7/22
Cooling Capacity 3700W
Heat-exchange Area 22㎡
Tube Volume 5.3L
Inlet/Outlet Coupling φ16mm Inlet / φ22mm Outlet
Fan Specs 2x140W
Coil Defrost Power 1600W
Water Dish Defrost Power 1600W

Sizing Reference: This cold room cooling unit fits small 20–30㎡ medium-temperature cold storage above 8℃, perfect for fruit sorting rooms, small fresh food retail back storage and light food processing workshops.

 

Company Profile

product-957-582

Shenzhen Ruifujie Technology Co., Ltd.

Ruifujie specializes in manufacturing full-series refrigeration air coolers and supporting cold chain equipment. We provide flexible OEM/ODM customization for all air cooler models, with strict factory performance testing before shipment. Reliable product quality and dedicated technical support help us build stable cooperation with global cold storage engineering clients.

high quality

Advanced Equipment

Professional Team

One-Stop Solution

16+ Years Experience

Founded in 2009

16 years of experience

Sea-near factory

Fast and convenient road

transport and air freight

Freight Cooperation

Favorable transportation

price and safety

global shipping

7-15 days (under 20pcs)

within 30 days (over 20pcs)

Main Product

 

 

Scroll Compressor

Scroll Compressor

Rotary Compressor

Rotary Compressor

Piston Compressor

Piston Compressor

Semi-Hermetic Compressor

Semi-Hermetic Compressor

Screw Compressor

Screw Compressor

Condensing Unit

Condensing Unit

Cold Room Equipment

Cold Room Equipment

Quick-freezing Equipment

Quick-freezing Equipment

Certifications

 

 

product-400-538
product-400-538
product-400-538
product-400-538
product-400-538
product-400-538
 

FAQ

01.What storage scenarios is the 6mm wide fin DSD series more suitable for than 4.5mm fin DSL models?  

6mm spacing greatly resists frost buildup in high-humidity medium-temp food workshops; DSL 4.5mm fins target dry large high-temp logistics warehouses, so DSD works better for fresh fruit/vegetable processing rooms.

02.Is this small DSD-3.7/22 cold room cooling unit easy to install in narrow workshop ceilings?  

Yes, it adopts compact ceiling-mounted structure with standard reserved mounting holes, light overall weight and small footprint, fitting narrow ceiling spaces of small food processing workshops without complicated reconstruction.

03.Does dual-side soft airflow cause uneven temperature inside small cold rooms?  

Two opposite air outlets form circulating airflow inside the warehouse, avoiding cold dead corners; gentle wind speed prevents direct cold air blowing damage to unpackaged fresh produce.

04.Can you adjust the defrost heating power of this cold room cooling unit per client's warehouse humidity?  

Customization of defrost power, fan voltage and shell coating material is supported to match different local humidity and power supply standards.

05.How long is the warranty period for your cold storage air coolers?  

We offer a 12-month factory warranty covering all core fan motors and defrost heating parts, with permanent spare parts supply for all sold models.
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Request Small Cold Storage Matching & Budget Quotation

If you run small food processing plants or fresh retail cold storage projects, send us your warehouse size, working temperature and humidity data. Our refrigeration technical team will match the most cost-effective cold room cooling unit and send you a clear budget quotation within 24 hours.

 

 

 

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