Blade Types
Different Impellers for the Industrial Fans & Blowers

Discover a diverse range of precision-engineered impellers for industrial fans, designed to maximize airflow efficiency and performance. Our innovative designs cater to various applications, ensuring optimal airflow control and durability. Explore our selection to find the perfect impeller solution for your industrial fan needs.

Backward Curved Aerofoil Type

Backward curved Aerofoil has ideal Aerodynamic characteristics with maximum Design efficiency of up to 89%. It can be used for clean air or low dust concentrations for medium to high-pressure industrial applications. 4 different series for varying wheel designs allow flexibility in selection.

The double-skin airfoil makes the blades sensitive to abrasive dust and is to be used only for low dust loads.

With years of application-oriented experience and latest Manufacturing facilities, we manufacture these Impellers within close tolerances matching exact blade profiles using mechanized welding procedures. With welding distortion Management, maintaining minimal impeller run out before dynamic balancing and with special handling of Impeller, SYMBIOSIS delivers world class fans and blowers for your Critical applications.

Our Blowers are truly SYMBIOTIC to your process. Think of Air…… Think of SYMBIOSIS Blower.
We offer the Airofoil centrifugal fan in multiple sizes, arrangements, construction classes, impeller and housing widths. Whether standard or custom, each SYMBIOSIS Industrial Fan is designed and built with unmatched quality and backed by responsive service.


• AEROFOIL FAN PERFORMANCE & DESIGN
• Air volumes up to 9,50,000CMH
• Static pressures up to 1500 mmWC
• Temperatures up to 550 ℃
• High Peak Total Efficiency up to 89%
• Non-overloading power curve.
• Single Width, Single Inlet (SWSI) and Double Width, Double Inlet (DWDI).
• Silent in operation viz z viz other profiles for similar operation.
• Very high Strength of Impeller for clean gas application viz a viz other profiles for similar operation.

Backward Curved

The single Thickness Backward Curved Impeller is highly Efficient and only slightly less Efficient than its Aerofoil Counterpart. It has ideal Aerodynamic characteristics with maximum Design efficiency upto 82.4 %. It can be used for clean air or medium concentrations for medium to high pressure industrial applications. 9 different series for varying wheel designs allow flexibility in selection.
This Design is united for Harsh process requirements and is the most preferred choice for majority of applications.
Backward Curved Blower SYMBIOSIS MOST POPULAR MODELS FOR BACKWARD CURVED BLOWER With years of application oriented experience and latest Manufacturing facilities, we manufacture these Impellers within close tolerences matching exact blade profiles using mechanized welding procedures.
With welding distortion Management, maintaining minimal impeller run out before dynamic balancing and with special handling of Impeller, SYMBIOSIS delivers world class fans and blowers for your Critical applications Our Blowers are truly SYMBIOTIC to your process.
Think of Air…… Think of SYMBIOSIS Blower. We offer the Backward Curved Centrifugal fan in multiple sizes, arrangements, construction classes, impeller and housing widths. Whether standard or custom, each SYMBIOSIS Industrial Fan is designed and built with unmatched quality and backed by responsive service

• BACKWARD CURVED FAN PERFORMANCE & DESIGN
• Air volumes up to 9,50,000CMH
• Static pressures up to 1750 mmWC
• Temperatures up to 550 ℃
• High Peak Total Efficiency up to 82.4%
• Dynamically Balanced as per ISO 1940 – 1 Gr 6.3/Gr 2.5
• Non-overloading power curve.v • Single Width, Single Inlet (SWSI) and Double Width, Double Inlet (DWDI).
• Very high Strength of Impeller with majority of Impellers fully welded for long life and reliability Optimum thickness for low stress.

Backward Inclined

Backward curved Aerofoil has ideal Aerodynamic characteristics with maximum Design efficiency of up to 89%. It can be used for clean air or low dust concentrations for medium to high-pressure industrial applications. 4 different series for varying wheel designs allow flexibility in selection.
The double-skin airfoil makes the blades sensitive to abrasive dust and is to be used only for low dust loads.
With years of application-oriented experience and latest Manufacturing facilities, we manufacture these Impellers within close tolerances matching exact blade profiles using mechanized welding procedures. With welding distortion Management, maintaining minimal impeller run out before dynamic balancing and with special handling of Impeller, SYMBIOSIS delivers world class fans and blowers for your Critical applications.
Our Blowers are truly SYMBIOTIC to your process. Think of Air…… Think of SYMBIOSIS Blower. We offer the Airofoil centrifugal fan in multiple sizes, arrangements, construction classes, impeller and housing widths. Whether standard or custom, each SYMBIOSIS Industrial Fan is designed and built with unmatched quality and backed by responsive service.

• AEROFOIL FAN PERFORMANCE & DESIGN
• Air volumes up to 9,50,000CMH
• Static pressures up to 1500 mmWC
• Temperatures up to 550 ℃
• High Peak Total Efficiency up to 89%
• Non-overloading power curve.
• Single Width, Single Inlet (SWSI) and Double Width, Double Inlet (DWDI).
• Silent in operation viz z viz other profiles for similar operation.
• Very high Strength of Impeller for clean gas application viz a viz other profiles for similar operation.

Radial Bladed

Backward curved Aerofoil has ideal Aerodynamic characteristics with maximum Design efficiency of up to 89%. It can be used for clean air or low dust concentrations for medium to high-pressure industrial applications. 4 different series for varying wheel designs allow flexibility in selection.
The double-skin airfoil makes the blades sensitive to abrasive dust and is to be used only for low dust loads.
With years of application-oriented experience and latest Manufacturing facilities, we manufacture these Impellers within close tolerances matching exact blade profiles using mechanized welding procedures. With welding distortion Management, maintaining minimal impeller run out before dynamic balancing and with special handling of Impeller, SYMBIOSIS delivers world class fans and blowers for your Critical applications.
Our Blowers are truly SYMBIOTIC to your process. Think of Air…… Think of SYMBIOSIS Blower. We offer the Airofoil centrifugal fan in multiple sizes, arrangements, construction classes, impeller and housing widths. Whether standard or custom, each SYMBIOSIS Industrial Fan is designed and built with unmatched quality and backed by responsive service.

• AEROFOIL FAN PERFORMANCE & DESIGN
• Air volumes up to 9,50,000CMH
• Static pressures up to 1500 mmWC
• Temperatures up to 550 ℃
• High Peak Total Efficiency up to 89%
• Non-overloading power curve.
• Single Width, Single Inlet (SWSI) and Double Width, Double Inlet (DWDI).
• Silent in operation viz z viz other profiles for similar operation.
• Very high Strength of Impeller for clean gas application viz a viz other profiles for similar operation.

Arrangement of Drive

ARRANGEMENT NO. 1 SWSI

Wheel overhung. Bearing in bracket supported by fan housing. For beit drive or direct connection.

ARRANGEMENT NO. 2 SWSI

For belt drive or direct connection. Wheel overhung. Bearing in bracket supported by fan housing

ARRANGEMENT NO.3 SWSI AND DWDI

For belt drive or direct connection. One bearing on each side and supported by fan housing.

ARRANGEMENT NO. 4 SWSI

For direct drive. Wheel overhung on motor shaft. No bearing on fan. Base mounted or an integrally direct connected motor.

ARRANGEMENT NO.7 SWSI AND DWDI

For belt drive or direct connection. Arrangement No.3 plus base for motor.

ARRANGEMENT NO.8 SWSI

For belt drive or direct connection. Arrangement No.1 plus base for motor.

ARRANGMENT NO.9 SWSI

For belt drive Arrangement No.1 designed for mounting prime mover on side of base.

Direction of Rotation And Discharge
Standard Motor Position

The Location of motor is determined from plan view of the blower, designing the motor position by letters W, X, Y and Z as the case may be.

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