Multi-Wing fan blade guides
Practical guides for specifying, ordering, and maintaining Multi-Wing replacement fan blades in South African industrial installations.
How to identify a Multi-Wing fan blade
Every Multi-Wing blade is marked with a series code and rotation letter on the blade root. Here is how to read yours.
Left-hand vs right-hand fan blades — what the L/R letter means
Get the rotation wrong and your cooling system pushes air the wrong way. A 60-second check before ordering saves expensive mistakes.
5Z vs 4Z — which Multi-Wing blade profile do I need?
The 4Z and 5Z are the most commonly specified Multi-Wing profiles. They look similar but serve different duty points. Here is how to pick.
Cooling tower fan blade replacement — a practical guide
Cooling towers eat fan blades. UV, water, chemical treatment, and thermal cycling all shorten blade life. Here is how to replace them without downtime drama.
ATEX compliance for fan blades in South African mines
South African underground mining requires ATEX-compliant equipment. Using the wrong blade material in a classified zone is a safety and legal problem.
PMAX engine cooling blades — what they are and when to use them
PMAX is Multi-Wing's high-pressure blade family for engine and radiator cooling. Different from standard axial profiles and used in truck, genset, and mining equipment.