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Key features of our O-P1

Lower noise emissions

Lightweight design for maximum mounting flexibility

High airflow and static pressure capability

Lower power consumption

Space-saving stackable design

For emission optimized engines

Low cost impeller 
tailored for tractor applications


The innovative and unique blade geometry of the new O-P1 is suitable for emission optimized engine cooling applications in compact and small off-highway equipment in puller configurations.


The O-P1L offers reduced noise emissions and power consumption perfect for backhoe loaders, skid steer, compact medium sized tractors, compact construction machinery, engine manufacturers.


With 60 years of experience in aerodynamics, using a custom designed fan system paired with efficient motors and drives allows Multi-Wing to offer OPM 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.

O-P1 is optimal for
the following applications

Backhoe loaders

Skid steers

Compact and utility tractors

Compact construction machinery

Engine manufactures

O-P1 specifications


    • Diameter range: 324 – 508 mm (12,75” – 20”)
    • Advanced winglet technology to reduce noise
    • Aerodynamically optimized blade geometry to improve efficiency
    • Various hole mounting patterns available
    • Lightweight design for clutch compatibility with our BM20 viscous clutch
    • Strong blade stiffness to minimize deflection
    • Stackable design
    • Operating speed up to 3870 rpm @ 80°C at full blade length


    • Lower noise emissions
    • Lightweight design for maximum mounting flexibility
    • High airflow and static pressure capability for demanding cooling application with high ambient temperatures
    • Lower power consumption
    • Cost optimized design
    • Space-saving stackable design minimizes packaging, transport and storage costs
    • High durability
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