High-Efficiency Backward Curved Centrifugal Fans
- Size: 133–355 mm
- Voltage: 115–240 V
- Airflow: 159–1735 CFM
Our backward curved centrifugal fans (also referred to as backward inclined centrifugal fans) deliver superior efficiency for small to medium applications. Whether you need a centrifugal backward curved fan for an electrical cabinet or a backward inclined fan for ventilation, LINKWELL offers reliable, energy‑saving solutions.
What Is a Backward Curved Centrifugal Fan?
A backward curved centrifugal fan features blades that curve away from the direction of rotation. This design allows the fan to generate higher efficiency, lower noise, and stable pressure compared to forward curved types. The airflow exits radially, making it ideal for ducted systems and equipment cooling.
- Compared with forward curved fans, backward curved designs offer higher efficiency and longer service life – especially in continuous operation.
Key differentiators: non‑overloading power curve, stable performance under variable pressure, and lower energy consumption.
Main Types by Impeller Design
High Efficiency
Optimized blade geometry for max airflow per watt.
Low Noise
Smooth air delivery reduces turbulence.
Energy Saving
Up to 30% less energy than forward curved.
Stable Pressure
Consistent performance even with system changes.
Technical Specifications
Centrifugal Fan
Fan
Model
Size
(mm)
Voltage
(VAC)
Power
(W)
Speed
(RPM)
Airflow
(CFM)
Backward Curved Centrifugal Fan Applications
Electrical cabinets
Cooling control panels, drives, and PLCs.
HVAC units
Fan coils, air handling, ventilation.
Industrial equipment
Power supplies, inverters, welding machines.
Telecom & medical
Base stations, MRI cooling, lab devices.
Note: Our fans are optimized for small-to-medium equipment – not for large factories or heavy material handling.
Product Types & Custom Options
Single / Double Inlet
Single inlet for compact spaces, double for higher airflow.
Size variants
133, 175, 225, 280, 355 mm (others on request).
Motor technology
AC, DC, or EC – efficiency optimized.
IP protection
IP20 – IP68, with sealed leads.
Why Choose LINKWELL
- Factory direct supply – no middlemen
- 100% testing before shipment
- Fast lead time – 7–15 days for most orders
- Engineering support (we help you select)
LINKWELL vs others
- In-house R&D
- Full testing
- Flexible customization
- Short lead time
Certifications of Backward Curved Centrifugal Fan
Company Profile
With over 20 years of engineering expertise, LINKWELL is a trusted manufacturer of advanced cooling solutions
About LINKWELL
LINKWELL specializes in the design and manufacturing of high-efficiency backward curved centrifugal fans, widely applied in industries such as industrial automation, power electronics, renewable energy, energy storage systems, and telecommunications.
Our solutions are engineered to deliver stable airflow, superior energy efficiency, and long-term reliability, meeting the performance demands of modern industrial systems. With a strong presence in global markets, LINKWELL continues to advance fan technology through continuous innovation and engineering expertise.
Focused on innovation, quality, and customer satisfaction, LINKWELL offers comprehensive OEM, ODM, and OBM services, providing tailored airflow solutions for a wide range of applications.
- ISO9001 Certified
- CE Certified
- ISO14001 Certified
- UL Certified
FAQ of Centrifugal Fan
What is a backward curved centrifugal fan?
A fan with blades curved away from rotation direction; it provides high efficiency, low noise, and stable pressure for medium‑to‑high static applications.
When should I choose this type?
When you need energy savings, continuous duty, and lower noise – ideal for electrical cabinets, HVAC, medical devices, and telecom.
What is the difference vs forward curved?
Backward curved offers higher efficiency, lower energy use, and longer life; forward curved gives more airflow at low pressure but is less efficient.
Can you customize airflow and pressure?
Yes, we adjust motor speed, impeller geometry, and housing to meet your exact performance requirements (OEM/ODM).
What industries use these fans?
Industrial automation, power electronics, renewable energy, HVAC, telecommunications, and medical equipment.
