All Stainless Steel Coil Air Cooler

nuclear structure

1. Heat exchange coil: constructed from seamless 304/316L stainless steel tubes, with mechanically expanded tubes tightly fitted against corrosion-resistant aluminum fins and fully sealed by argon arc welding; undergoes factory leak testing under 3.0 MPa high pressure.
2. Whole housing / water collection tray / motor bracket: made of integral bent stainless steel without galvanized steel components.
3. Komponente: IP55 moisture-proof fan, stainless steel electric defrost heating tube, and insulated stainless steel drainage tray.
4. Defrosting methods: choose one from electric heating, water flushing, or steam defrosting; prioritize water flushing for highly corrosive storage areas   

II. Core Advantages (Compared to Conventional Galvanized/Copper Tube Air Coolers)

1. Exceptionally corrosion-resistant, suitable for harsh cold storage environments

304 Stainless steel: resistant to high humidity, food moisture, and weak acids/alkalis (used in storage of meat, fruits/vegetables, and dairy products);
316L stainless steel: contains molybdenum, resistant to salt spray, seawater, pickled foods, seafood, and minor chemical corrosion; essential for coastal cold storage applications.
Standard galvanized cold air fans: Defrost water from cold storage systems and food volatiles can cause corrosion and perforation within 1–2 years, leading to refrigerant leakage and contamination of goods; stainless steel units have a service life of 8–12 years, significantly reducing replacement costs.

2. Food-grade hygiene, meeting cold chain quality inspection standards

Stainless steel exhibits a dense and smooth surface free from oxide scales, resists mold growth, and is easily cleaned of oil residues. It supports high-pressure water flushing for disinfection, meeting the cleanliness requirements of food production and pharmaceutical GMP standards. There is no risk of rust detachment contaminating meat products, seafood, or pharmaceuticals.

3. System safety, compatible with ammonia/CO₂ as natural refrigerant in cold storage systems

Ammonia is corrosive, and conventional copper pipes are prone to corrosion and leakage during prolonged operation. Stainless steel coils exhibit excellent resistance to ammonia erosion and are widely employed in large-scale ammonia-based refrigeration cold chains and CO₂ transcritical rapid-freezing systems, effectively eliminating potential refrigerant leakage hazards.

4. Maintenance costs have been significantly reduced
No frequent rust removal or repainting required; water flushing of frost prevents shell corrosion and leakage.
The coil design resists scaling and clogging, ensuring long-term stable heat transfer performance. Compared to rusted or aged air coolers, the system's energy consumption is reduced by 15%–25%.
Stainless steel supports resist rusting and deformation, resulting in reduced vibration during fan operation and lower bearing wear.