China Suppliers Air Cooler Water Defrosting Evaporator for Cold Storage - Efficient Frost Management from Factory

In the refrigeration industry, optimal temperature maintenance is essential for the preservation of perishable goods. An electric defrost evaporating unit plays a vital role in this process. Our Air Cooler is a highly efficient heat exchange equipment designed for various cold storage applications, including high temperature, medium temperature, low temperature, civil cold storage, and combined cold storage, Our water defrost Air Cooler utilizes warm water to effectively remove frost buildup on the evaporator coil, ensuring uninterrupted operation and maximizing efficiency. This innovative system is programmed to activate at set intervals or when frost accumulates beyond a specific threshold. During this process, warm water circulates over the evaporator coil, melting any frost and allowing the unit to function at its optimal performance level, As a leading supplier and factory in China, we are committed to delivering high-quality refrigeration solutions tailored to meet your needs. Our products assure reliability and performance, making us your trusted partner in the refrigeration sector

Product Description

Products Description
Our water defrost Air Cooler: W-series air coolers are divided into three series: W-SD, W-SL and W-SJ types, used differently as evaporators in medium temperature, high-temperature, and low-temperature cold storages.
W series water defrost air coolers have compact structure, light weight, easy installation, fast air circulation in the storage, and it can balance storage temperature.
Product Details
The Air Cooler needs to be used with the refrigeration compressor unit. According to the required storage temperature, the corresponding air cooler should be selected.
🌡️ W-SD Series Suitable for cold storage with a storage temperature from -5°C to 5°C (23~41°F). Can store fresh foods, vegetables and other items.
❄️ W-SL Series Suitable for cold storage with a storage temperature from -15°C to -25°C (5~-13°F). Suitable for freezing/refrigerated beef, mutton, fish, and seafood.
🧊 W-SJ Series Suitable for cold storage with a storage temperature of -25°C to -40°C (-13~-40°F). Mainly used for quick-frozen poultry, seafood, dairy products, etc.
Blowing and Mounted Types
Ceiling Mounted
Oblique Side Blow Air Cooler
Oblique Side Blow
Standard Side Blow Air Cooler
Standard Side Blow
Double Side Blow Air Cooler
Double Side Blow
Floor Stand
Standard Top Blow Floor Air Cooler
Standard Top Blow
Vertical Side Blow Floor Air Cooler
Vertical Side Blow
Core Features
Steel Plate Cabinet with plastic spray
Corrosion proof
Color can be customized
Cabinet Features
Mechanically expanded copper tubes.
Copper Tubes
Long distance air throw cowl available
Refrigerant: R404A, R507A, R22, etc.
Air Throw Cowl
Blue hydrophilic aluminum foil.
More types of AL foil available.
Aluminum Foil
MaEr Fan Motor / EBM Motor Available.
Fan Motor
Model Specification
Model Description Chart
Standard Optional
HT-WS-J/D/L Series Water Defrost Air Cooler Model Specification
HT-WS Evaporating Area Defrost Temperature Installation Blow Type Fan Motor Fan Type Fin
S D R J / D / L Roof Floor Brand Qty G Z Light Foil Hydrophilic Others
Water Electric Hot Fluorine Low Mid High Standard Oblique Double Side Standard Vertical MaEr EBM Outer Rotor Axial Flow
30-60030-6002-4
For additional configurations not listed, please consult technical support, thank you!
More About Water Defrosting Air Cooler
Water defrost air coolers are an important part of modern cold storage solutions. Its efficient cooling capacity combined with automatic water-based defrost ensures that perishable goods are stored under optimal conditions. With energy-efficient design, advanced temperature control and durability, air cooler units are ideal for a variety of applications, from food and pharmaceutical storage to cold chain logistics and industrial refrigeration.
Energy Efficiency

Designed to minimize energy consumption. Using warm water for defrost is often more energy efficient than electric heating.

🔄 Auto-Defrost

Ensures optimal performance without the need for constant manual intervention through hands-free operation.

🌡️ Precise Control

Equipped with an advanced control system that can accurately adjust the storage environment stability.

🛡️ High Durability

Made from high-quality materials to withstand harsh conditions, ensuring a long service life.

Frequently Asked Questions
Q What is the difference between W-SD, W-SL, and W-SJ air cooler series?
The three series are designed for different temperature ranges. W-SD is for medium-temperature storage (-5°C to 5°C), W-SL is for low-temperature storage (-15°C to -25°C), and W-SJ is for ultra-low temperature storage (-25°C to -40°C).
Q What refrigerants are compatible with the W-series air coolers?
The W-series air coolers are compatible with multiple refrigerants including R404A, R507A, and R22, offering flexibility for different refrigeration systems.
Q What installation and blowing types are available?
The W-series supports both ceiling-mounted (Oblique Side, Standard Side, and Double Side Blow) and floor-stand (Standard Top and Vertical Side Blow) installations.
Q What defrost methods are available for the HT-WS series?
The HT-WS series supports three defrost methods: Water Defrost (Standard), Electric Defrost (Optional), and Hot Fluorine Defrost (Optional).
Q What fan motor options are available for customization?
For fan motors, both MaEr and EBM brands are available. Fan types include Outer Rotor and Axial Flow, with quantities ranging from 2 to 4 depending on the unit size.
Q Are custom configurations and colors available?
Yes, custom configurations beyond the standard table are available, and the cabinet color can be customized to meet specific requirements.

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