AirfoilMulti-Wing 4ZL Fan Blade
4ZL is the left-hand (L) blade of the Multi-Wing 4Z profile; by Multi-Wing’s definition it turns counter-clockwise when facing the airstream. Request a quote for single blades or complete impellers marked “4ZL” at the blade root.
Diameter range222–1,261 mm
Hub seriesZ
RotationLeft (L)
4Z product codes and part numbers
Left/right blade codes, part numbers and complete impeller codes of the 4Z profile. Request a quote from each code’s own page.
About 4ZL
4ZL is the left-hand (L) blade of the Multi-Wing 4Z profile; by Multi-Wing’s definition it turns counter-clockwise when facing the airstream. Request a quote for single blades or complete impellers marked “4ZL” at the blade root.
Airfoil profiles have a wing-like cross-section and deliver high efficiency across a wide operating range. From 2H to 10G, this family covers the most widely used Multi-Wing profiles, from small motor cooling fans to giant cooling tower impellers.
The Z series is the most widely used Multi-Wing family, covering 3Z, 4Z, 5Z, EMAX4, 1Z, 2Z2, 7Z, 6Z and the reversible TR7Z and TR8Z profiles. Mounted with Z retaining plates in various blade counts and angles, it is common on condenser, dry cooler, compressor and genset fans.
4ZL can be produced at diameters from 222 mm to 1,261 mm. Since modular profiles are cut in 1 mm steps, simply state the diameter that matches your existing shroud or venturi ring.
Technical specifications
| Product group | Multi Wing Spare Part Numbers |
|---|---|
| Profile family | Airfoil |
| Hub series | Z |
| Diameter range | 222–1,261 mm (8.7–49.6 inch) |
| Rotation | Left (L) |
| Profile | Multi-Wing 4Z Fan Blade |
| Applications | Condensers and evaporators, Dry coolers, Generator (genset) cooling, Compressor cooling, Livestock and greenhouse ventilation |
Where is it used?
- Condensers and evaporatorsMoves air evenly across condenser and evaporator coils in refrigeration circuits.
- Dry coolersDelivers high airflow over large coil faces in dry coolers at low sound levels.
- Generator (genset) coolingKeeps generator engines at safe temperatures with strong pressure and airflow through the radiator.
- Compressor coolingUsed on the oil and air coolers of screw and piston compressors.
- Livestock and greenhouse ventilationGives long air throw and even ventilation in poultry houses, barns and greenhouses.
What do we need for a quote?
- Diameter of the current fan (mm)
- Number of blades
- Profile code (e.g. 4Z, 6W, PMAX4)
- Rotation (L / R)
- Pitch angle
- Material (PPG, PAG, AL…)
- Hub / shaft bore size
- Motor speed (rpm)
You don’t need to know everything. Enter what you know and we will complete the rest together.
How to read the product code
630Diameter (mm)/6Blades-6Sockets/30Pitch (°)/PAGMaterial/4ZLProfile + hand/28Bore (mm)/8Key/62Hub/AMounting
This is an example label code for an impeller with the 4ZL profile. Simply write the full code from your label in the quote form. See our selection guide for details.
Frequently asked questions
What diameters is the Multi-Wing 4ZL Fan Blade available in?
The diameter range for 4ZL is 222–1,261 mm. State the size you need in the quote form.
What does the letter L in 4ZL mean?
The letter L shows the rotation: L is left-hand (anticlockwise). If you need the opposite direction, mention it in the note field of the quote form.
How do I get a price for 4ZL?
Add the product to your quote list and send your contact details. Our quote with itemised prices, shipping and lead time is sent to your email address.
What is the lead time?
Items in stock are usually shipped the same day. Lead time for non-stock items is stated in your quote.
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