Air Cooler Fin Spacing Selection: Medium Temp, Low Temp and Blast Freezer

Air Cooler Fin Spacing Selection: Medium Temp, Low Temp and Blast Freezer

Fin spacing is the distance between aluminium fins on evaporator coil, one key parameter to balance heat exchange efficiency and anti-frost capacity. Medium temperature cold room (0~10℃ fresh keeping) normally uses 4.5 mm fin spacing; frost forms slowly and fine fins bring larger heat exchange area. Low temperature cold room (-18~-25℃ frozen storage) selects 6.0 mm fin spacing; wider gap prevents frost bridging between fins and blocking airflow quickly. Blast freezer air cooler adopts 8.0–10.0 mm extra-wide fin spacing, facing heavy and fast frost accumulation during continuous product pull-down. Too narrow fin spacing for low-temperature application leads to rapid blockage, frequent defrost and sharp efficiency drop; too wide reduces heat transfer area. Xiteliduo air cooler HS 84186120 offers customized fin spacing, coil material and coating options for different cold storage working conditions. Air cooler for high humidity flower and mushroom cold room uses 5 mm fin spacing, balancing moisture removal and avoiding fast frost blocking. Coastal corrosive environment air cooler chooses hydrophobic epoxy coated fins; coating slows salt adhesion and reduces corrosion starting from fin edge. Air cooler fin spacing cannot be changed after manufacturing; fin selection must be confirmed at the early cold room design stage. Refrigeration maintenance & repair judge improper fin spacing when air cooler needs defrost far more often than original design expectation.

FAQ

1. What fin spacing for medium temperature fresh keeping cold room air cooler? 4.5 mm fin spacing.
2. What fin spacing for -18 ~ -25 ℃ frozen storage air cooler? 6.0 mm fin spacing.
3. What fin spacing range for blast freezer air cooler? 8.0–10.0 mm extra-wide fin spacing.
4. What risk if low-temperature cold room uses too narrow fin spacing air cooler? Frost bridges fins quickly, airflow blocked and cooling efficiency collapses.
5. What fin spacing for high-humidity fresh produce cold room? Around 5 mm fin spacing.
6. What coating protects air cooler fins in coastal salt fog environment? Epoxy hydrophobic anti-corrosion coating.
7. Can we modify fin spacing after air cooler production? No, fin spacing is fixed once coil is manufactured.
8. What symptom indicates mismatched narrow fin spacing on low temp air cooler? Defrost cycles become abnormally frequent.