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Key features of our PMAX4

Lower noise emissions

Lower power consumption

High durability

High airflow and static pressure

Low projected width

Modular fan for engine cooling

High performance modular
blade profile for Z-series hubs


Aerodynamically optimized blade design tailored
to high resistance engine cooling applications.


PMAX4 has high efficiency gain with lower noise emissions over a wide operating range and is a highly adaptable modular impeller configuration for a broad range of engine and other cooling applications.


With 60 years of experience in aerodynamics, using a flexible and modular fan system paired with efficient motors and drives allows Multi-Wing to offer modular fan solutions showing improved cooling performances within the same power envelope.

Energy saving

Multi-Wing offers energy savings without compromising on cooling needs, improving lifetime and energy balance of products, systems and applications.

PMAX4 is optimal for
the following applications


Wheel loaders

Material handlers

Small to medium gensets

PMAX4 specifications


    • Diameter range: 555 – 945 mm (21,85” – 37,2”)
    • Low axial width and excellent efficiency at high static pressure
    • Greatly reduced noise emissions compared to competitor products in the same performance envelope
    • New large diameter hub for easy fit to clutches
    • Strong blade stiffness to minimize deflection
    • Ideal for Z-hub types: 6-6, 6-6L, 7-7, 8-8, 9-9, 9-9L, 8-16
    • Operating speed up to 2500 rpm @ 20°C at full blade length


    • Lower noise emissions
    • High airflow and static pressure capability for demanding cooling application with high ambient temperatures
    • Lower power consumption
    • Fewer number of blades required to achieve same performance as competitor solutions
    • High durability
    • Low projected width for cramped engine bay installation
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