China Air Cooler Water Defrosting Evaporator - Efficient Cold Storage Solutions from Trusted Suppliers and Factory

In the refrigeration industry, maintaining optimal temperatures is essential for preserving perishable goods, especially in various storage environments. Our electric defrost evaporating unit is designed to meet these needs effectively. The Air Cooler serves as a high-quality heat exchange solution, ideal for diverse 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 efficiently melt any frost accumulation on the evaporator coil, which prevents clogging and ensures optimal performance. These water defrost systems are smartly activated at predetermined intervals or when frost reaches a specific threshold, allowing warm water to circulate over the evaporator coil. This innovative approach keeps your unit operating at peak efficiency, making it a preferred choice among China suppliers and factories in the refrigeration sector

Product Description

Product Description
The W-series water defrost Air Coolers are high-performance evaporators designed for versatility in refrigeration. They are categorized into three specialized series—W-SD, W-SL, and W-SJ—tailored for medium, high, and low-temperature cold storage environments.
Featuring a compact structure and lightweight design, these units facilitate easy installation and rapid air circulation, ensuring a perfectly balanced temperature throughout your storage facility.
Series Applications
❄️ W-SD Series

Optimized for temperatures from -5°C to 5°C (23°F to 41°F). Perfect for fresh produce, vegetables, and chilled goods.

🌡️ W-SL Series

Designed for -15°C to -25°C (5°F to -13°F). Ideal for freezing beef, mutton, fish, and various seafood products.

🧊 W-SJ Series

Engineered for -25°C to -40°C (-13°F to -40°F). Specifically for quick-frozen poultry, premium seafood, and dairy.

Installation & Blowing Types
Ceiling Mounted Configuration
Oblique Side Blow
Oblique Side Blow
Standard Side Blow
Standard Side Blow
Double Side Blow
Double Side Blow
Floor Stand Configuration
Standard Top Blow
Standard Top Blow
Vertical Side Blow
Vertical Side Blow
Technical Features
Steel Plate Cabinet with durable plastic spray
High corrosion resistance for longevity
Customizable color options
Cabinet Detail
Mechanically expanded copper tubes for better heat transfer
Long distance air throw cowl available
Copper Tubes
Blue hydrophilic aluminum foil as standard
Compatible with R404A, R507A, R22 refrigerants
Fin Detail
Equipped with MaEr Fan Motor
Optional EBM Motor available for high-efficiency requirements
Fan Motor
Model & Specifications
Model Description
● Standard ○ Optional
Water Defrost Air Cooler Model Specifications
Series Area (m²) Defrost Method Temp Range Installation & Blow Type Fan Motor Fan Type Fin Type
Size Water (S) Elec (D) Hot (R) J / D / L Ceiling Floor MaEr EBM Qty G Z Light Hydro Other
Standard Opt. Opt. Low-High Std Obliq Double Std Vert Std Opt. Outer Axial
HT-WS 30 - 120 - 2-4 -
HT-WS 140 - 300 4
HT-WS 330 - 670 4
Why Choose Water Defrost Systems?
Water defrost air coolers are essential for modern cold storage, combining superior cooling efficiency with automated maintenance. By using warm water for defrosting, these units offer a more energy-conscious alternative to traditional electric heating.
Energy Efficiency

Significantly reduces operational costs by utilizing water's thermal properties for frost removal.

Auto-Defrost

Maintains peak performance automatically, reducing the need for manual maintenance intervention.

Precision Control

Advanced systems ensure the storage environment remains stable within critical temperature ranges.

Rugged Durability

Constructed with high-grade materials to endure the demanding conditions of industrial refrigeration.

Frequently Asked Questions
Q1. Which series is best for fresh vegetable storage?
The W-SD series is specifically designed for temperatures between -5°C and 5°C, making it the ideal choice for fresh foods and vegetables.
Q2. What installation options do I have for limited ceiling space?
For facilities where ceiling mounting isn't ideal, we offer Floor Stand configurations, including Standard Top Blow and Vertical Side Blow options.
Q3. Can these air coolers handle very low quick-freezing temperatures?
Yes, the W-SJ series is engineered for extreme low temperatures ranging from -25°C to -40°C, perfect for quick-freezing poultry and dairy.
Q4. Are the fans energy efficient?
All units come standard with high-quality MaEr Fan Motors, and we offer EBM Motors as an upgrade for those seeking maximum energy efficiency.
Q5. What defrosting methods are available besides water?
While water defrost (S) is standard, the units can be optionally configured for Electric Defrost (D) or Hot Fluorine Defrost (R) depending on your facility needs.
Q6. Is the cabinet protected against rust?
Absolutely. The units feature a Steel Plate Cabinet with plastic spray coating, providing excellent corrosion protection in humid cold storage environments.

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