AC Centrifugal Fan Manufacturers

At Hangzhou Beron Motor Co., Ltd., we engineer and produce AC Centrifugal Fan solutions for equipment manufacturers, plant engineers and distributors who need reliable continuous air movement in HVAC, filtration, refrigeration, power electronics, IT communication and industrial machinery. As an AC Centrifugal Fan manufacturer based in Hangzhou, China, we combine AC outer rotor motors with forward-curved and backward-curved impellers to cover duties from compact heat-pump compartments to large-scale FFU and air-purification systems.

Since 2010, Beron Motor has operated as a high-tech enterprise with two production and R&D centers in Hangzhou and Huzhou. Our engineering work is supported by wind tunnel, noise, motor performance and aging laboratories, and the same facilities are used for sample validation and quality control before serial delivery. With a 6,000 m² factory area and an annual output of 60,000 units, we can move from prototype validation to serial production under one quality system. For global distributors, this creates a single-source supplier that can take a duty point, an envelope and a target price, then deliver a documented fan package rather than an off-the-shelf component.

AC Centrifugal Fan Range and Application Fit

Our AC centrifugal fan offering spans high-pressure backward-curved, large-air-volume forward-curved, compact and metal-duty variants. Because the range shares a common motor and balancing platform, we can scale the same engineering approach across projects with very different size and pressure targets.

The Centrifugal Fan family also includes EC Centrifugal Fan and DC Centrifugal Fan versions for projects where speed control, network communication or lower energy consumption becomes the deciding parameter. The AC range remains the simplest and most cost-effective choice when a fixed air volume is acceptable and the machine already runs on AC supply.

Forward Curved and Backward Curved: Matching Impeller to Duty

Forward-curved impellers, also called sirocco or squirrel-cage wheels, produce a compact, high-airflow unit with relatively low peripheral speed. They suit HVAC blowers, fan coils and equipment where space is limited and pressure requirements are modest. Backward-curved impellers are the stronger choice where static pressure, efficiency and low noise matter, such as FFU systems, air purifiers and precision ventilation units. We select the impeller family before quoting because the two configurations respond very differently to system resistance and require different motor ratings.

As an AC Centrifugal Fan supplier, we treat this as an engineering decision rather than a stock availability question. For filter-heavy systems with rising pressure drop, backward-curved blades give a flatter performance curve and better reserve. For cabinet blowers where outlet velocity and compactness are critical, forward-curved wheels are usually the practical solution.

Construction, Materials and Balancing

Every AC centrifugal fan we build is direct-driven, with the impeller mounted directly on a sturdy outer rotor motor and supported by high-quality ball bearings. There is no belt, pulley or separate bearing housing to align, which shortens the overall package and reduces routine maintenance. The impeller is calibrated by strict dynamic balancing before assembly, and a completed fan is checked for running current, vibration and noise against the project acceptance plan.

• Ball-bearing outer rotor motors deliver stable heat dissipation and continuous-duty performance for industrial ventilation.
• Multiple impeller sizes, air volumes and static pressure points are available to match diverse mechanical equipment envelopes.
• Materials and surface protection are selected against the operating environment; our proposal states housing and impeller material explicitly.
• OEM and ODM adaptations cover non-standard dimensions, voltage, power ratings and special-duty requirements.

Performance Data, Quality Assurance and Compliance

We use our wind tunnel laboratories for aerodynamic performance measurement, noise laboratories for acoustic validation, and comprehensive motor performance and aging laboratories for electrical endurance. This allows us to confirm fan curves at the operating point before tooling a custom housing or changing an impeller. Our management system is certified to ISO9001:2015, product certification includes CE and CCC, and RoHS and UL testing have been completed; IP55 rating tests are also part of our validation set for relevant enclosures.

• Aerodynamic duty point, noise level, motor input power and current are reviewed against target values.
• Production inspections cover balancing, assembly integrity, nameplates, accessories and packaging.
• Factory acceptance tests and third-party inspection support can be coordinated before shipment.
• Technical documentation, drawings, performance data and project files are delivered with the order.

Controls, Automation and Customization Approach

AC centrifugal fans are normally supplied for direct connection to an AC network, with control handled by contactors, thermal overload protection or a frequency converter when variable airflow is required. We confirm motor service factor, voltage tolerance and duty point so the fan can operate safely across the actual range. For variable-speed projects, we coordinate converter selection with the motor and define a valid operating window to avoid running the wheel outside its stable curve.

OEM and ODM customization is a core part of our AC centrifugal fan program. Customers can supply drawings, samples or specification sheets; our engineering team evaluates airflow, pressure, envelope, noise and lifecycle expectations, then provides a technical solution and quotation. Serial production follows sample approval, with schedules and quality milestones coordinated by our project team.

Installation, Maintenance and Service Life

The direct-drive AC construction keeps installation simple: the fan is mounted by its housing flange or base, wired according to the terminal diagram, and checked for rotation direction before service. Because the bearings are the main wear component, we select them according to operating temperature and expected running hours. Maintenance normally involves cleaning the impeller and inlet ring when dust accumulates, checking fasteners, and confirming current draw against nameplate values.

• Confirm supply voltage, frequency and phase rotation match the nameplate before initial start.
• Keep the inlet free of obstructions and maintain recommended clearance to surrounding components.
• Plan inspection intervals based on filter load, ambient dust and duty cycle.
• For large orders, on-site installation and commissioning assistance can be arranged separately.

Information We Use to Configure Your Solution

To prepare a precise AC centrifugal fan proposal, we start with a short operating specification. The more accurately this reflects your real conditions, the less re-qualification is needed after order placement.

• Duty point: required airflow and static pressure at the fan outlet.
• System details: duct length, filter type, clean/dirty pressure loss, inlet and outlet orientation.
• Electrical supply: voltage, frequency, phase and any control requirement.
• Envelope: maximum housing dimensions, mounting position and inlet clearance.
• Environment: ambient temperature, altitude, humidity, dust or corrosive exposure.
• Acoustic target: maximum sound pressure level and measuring distance.
• Duty cycle: continuous, cyclic or seasonal operation plus expected life.
• Compliance: required certifications, IP rating and destination market.
• Project scope: target quantity, delivery terms, packaging and inspection requirements.

With these inputs, we select the correct impeller family, motor rating, material and accessory set, then confirm the proposal with performance data.

Frequently Asked Questions

What is the difference between your forward-curved and backward-curved AC centrifugal fans?

Forward-curved wheels deliver high airflow with a compact impeller and moderate static pressure, which suits HVAC and roof fan applications. Backward-curved wheels develop higher pressure, run more efficiently and produce lower noise, making them our recommendation for FFU systems, air purifiers and precision ventilation units. We select the impeller type from your duty point rather than applying a one-size-fits-all product.

Can you customize voltage, terminals and mounting dimensions for our OEM product?

Yes. OEM and ODM customization is a core service. Send your drawing, sample or detailed specification; our engineering team evaluates feasibility and provides a solution and quotation. Custom items often cover voltage, power rating, lead length, connectors, mounting brackets and outlet orientation.

How do you verify that a fan will meet our airflow and noise specification?

We test in our wind tunnel and noise laboratories, and we review motor performance and aging behavior on dedicated test benches. Before serial delivery, production inspections cover balancing, assembly integrity and nameplate and accessory completeness. Factory acceptance testing can be arranged for larger project quantities.

What is the typical lead time and MOQ for AC centrifugal fans?

Standard product samples are normally available within 3-5 days, and regular orders have a production cycle of about 25-30 days after confirmation. Standard product MOQ is 100 pieces; customized products depend on process and specification. We confirm exact dates in the quotation.

What after-sales support and warranty do you provide?

We provide a 12-month warranty against defects in materials and workmanship, with free repair or replacement during the warranty period. Our support includes operating documentation, online installation guidance, spare parts coordination and, for large orders, optional on-site commissioning assistance.