Backward Curved Radial Fans

Parameter	Specification
Fan Type	Backward Curved Radial Fan
Airflow Range	Up to [X] CFM
Pressure Range	Up to [X] Pa
Motor Options	External Rotor / Standard Motor
Voltage Options	230V / 415V (Single & Three Phase)
Material Options	Mild Steel / Galvanized / Aluminum
Mounting	Panel / Base / Duct Mount

VBM Enterprises specializes in the manufacturing of Backward Curved Radial Fans, engineered to provide high-pressure airflow with low noise levels and non-overloading characteristics.

Designed for demanding industrial environments, these fans are known for their robust build, self-cleaning properties, and energy-efficient performance.

Silent | Efficient | Built for Continuous Duty

Specifications:

Backward Curved Fans can be used with or without scrolls/ housing and finds its use in sucking applications and where static required at fan inlet is high.

Key Feature

Backward Curved Impeller Design – Prevents dust accumulation and reduces maintenance
Non-Overloading Power Curve – Protects motor from overcurrent even under varying conditions
Low Vibration & Quiet Operation – Ideal for noise-sensitive areas
CE Certified External Rotor Motor Options
Sturdy Construction with Corrosion-Resistant Materials
High Static Pressure Output for Precision Applications

Applications

HVAC & AHU Systems
Clean Rooms & Laboratories
Fume Extraction Systems
Electronic Equipment Cooling
Industrial Ventilation
Filtration & Air Handling Units
Heat Recovery Systems
Pharmaceutical & Food Processing Units

Why Backward Curved?

Unlike forward-curved fans, backward curved fans are self-limiting in power draw, which means they offer enhanced safety and longer motor life even in variable air volume conditions. Their efficient aerodynamic design also contributes to lower energy consumption, making them a cost-effective solution in the long run.

Available Configurations

We offer a wide range of sizes and models to suit different airflow and pressure requirements.

Motor speed and voltage
Impeller size and materials
Inlet/outlet orientation
Noise reduction housing

Model Description

Model No.	Impeller Dimension (MM)	V	A	W	RPM	M³/HR	Noise (dBA)	Net Wt. (Kgs)
BC23/13328	133 × 60	230	0.16	35	2650	285	64	1.0
BC23/19028	190 × 62	230	0.25	55	2300	500	65	1.5
BC44/19028	190 × 62	415	0.17	60	2350	500	65	1.5
BC23/22028	220 × 67	230	0.38	85	2500	800	67	2.3
BC44/22028	220 × 67	415	0.26	90	2450	850	67	2.3
BC23/22528	225 × 90	230	0.63	140	2400	1050	66	2.5
BC44/22528	225 × 90	415	0.43	150	2450	1100	66	2.5
BC23/25028	250 × 85	230	0.66	145	2400	1200	68	3.0
BC44/25028	250 × 85	415	0.45	160	2400	1300	68	3.0

Our Manufacturing Process

Precision at Every Step — From Winding to Delivery

At VBM Enterprises, every product goes through a systematic, quality-controlled process to ensure high performance, durability, and safety. Here’s how we bring excellence to every fan and motor we build:

Step 1: Coil Winding & Motor Assembly

We begin with precision winding of coils to create efficient fan motors, followed by connecting lead wires to ensure electrical integrity.

Step 2: Motor Testing

Every motor undergoes Ohm value testing to check coil resistance, ensuring proper functionality from the start.

Step 3: Hi-POT & Impulse Testing

We perform high-potential and impulse testing to verify insulation strength between coils and motor casings, enhancing product safety and reliability.

Step 4: Motor Mounting & Impeller Balancing

Change the color to match your brand or vision, add your logo and more.

Step 5: Final Assembly & Quality Checks

Impellers are assembled to the motors, followed by pre-delivery inspections checking for vibration, wattage, and current to ensure optimal performance.

Step 6: Final Testing & Packing

A final round of Hi-POT insulation testing is conducted before products are carefully packed for delivery — guaranteeing both safety and quality in transit.

Let’s Build the Right Blower for You

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