AC Duct Fan Manufacturers

Beron Motor designs and manufactures AC duct fans as a complete engineering range: mixed-flow inline units, duct boosters with variable-speed control, low-noise residential exhaust fans, and high-static-pressure centrifugal models. Every fan is built around our own AC motor technology and tested in our Hangzhou and Huzhou facilities, giving procurement and engineering teams one point of responsibility for the motor, impeller, housing and certification documents. As a AC Duct Fan manufacturer based in China, we combine series production with application engineering and OEM/ODM support for distributors, plant engineers and system integrators.

AC Duct Fan Range and Positioning

Our AC duct fan line covers the duty points most often specified in commercial and residential ventilation: general extract, duct boosting, low-noise bathroom or kitchen exhaust, and long-duct high-pressure applications. The range is intentionally compact; each model shares service-friendly AC motors and standard duct flanges while differing in impeller type, housing material and control options.

All six configurations are part of our standard AC duct fan portfolio, and we adapt them to OEM requirements such as lead lengths, terminal blocks, custom nameplates and packaging. For energy-saving projects that need variable speed plus communication control, our EC Duct Fan series complements the AC line.

Application Fit: Working Point, Duct Length and Noise

Every AC duct fan selection starts from the same engineering question: how much air must move through what resistance? The resistance is created by duct length, diameter, bends, flexible sections, filters, dampers, grilles and terminal equipment. A unit that works well on a short straight duct can underperform when the same diameter is routed through several bends or fitted with a filter. We therefore quote the fan against the operating point, not the duct size alone.

• For flexible duct with multiple bends, select a higher-static model rather than simply increasing duct size.
• For continuous ventilation, choose a continuous-run rated motor with thermal overload protection.
• For humid or outdoor paths, specify galvanized housing and the required IP protection.
• For OEM equipment, integrate the fan early to match the pressure drop of filters, coils and heat exchangers.
• For high airflow at low resistance, compare with our axial fan range.
• For compact high-pressure duty, compare with our centrifugal fan range.

Motor, Materials and Long-Run Reliability

The reliability of an AC duct fan is decided before the impeller starts spinning. The motor must run for long periods without overheating, the impeller must resist corrosion and balance loss, and the housing must contain the airflow without adding excessive turbulence. Our AC duct fan designs combine these decisions into a repeatable product family.

• AC motor construction: robust outer-rotor design for stable performance under continuous operation.
• Copper windings and Class F insulation on continuous-run mixed-flow versions for higher thermal endurance.
• Housing material: galvanized steel for mechanical strength; flame-retardant plastic for light weight and corrosion resistance.
• Impeller material: aluminum for balanced, corrosion-resistant rotating mass; mixed-flow geometry balances airflow and pressure.
• Thermal protection: internal overload protection on low-noise and continuous-duty models.
• Serviceability: flanged connections and accessible impeller for cleaning and inspection.

Critical Specifications and Performance Validation

We specify each AC duct fan with airflow, static pressure, noise, voltage, frequency, power, current, speed and protection class. Because Beron Motor designs the motor and fan together, the published operating curve corresponds to the components actually fitted. Our wind tunnel, noise, motor performance and aging laboratories support both development and factory verification.

• Airflow at free-air and defined static pressure points, not only a single maximum value.
• Maximum static pressure for duct resistance and long-run capability.
• Sound pressure level, including the 28 dB low-noise model.
• Rated and dual voltage options: 110V and 220V; 50/60 Hz.
• Motor power, current, speed, insulation class, thermal overload protection and IP rating.
• Duct connection diameters: 4, 6, 8, 10 and 12 inches.
• Continuous-duty rating where applicable.

If your project needs a specific duty point, we select the impeller and motor from our performance maps rather than guessing from duct diameter alone.

Controls, Installation and Integration

AC duct fans are simple to install: flanged inlet and outlet connections, standard AC supply, and either fixed speed or field-adjustable speed. Our booster version includes a variable-speed controller so installers can balance airflow against actual duct resistance. When a project needs remote switching, speed control or BMS integration, we confirm the control interface and motor matching during the quotation phase.

• Flange-mount design for in-line duct installation.
• Variable-speed controller option for field adjustment.
• Dual-voltage 110V/220V models for multi-market programs.
• Thermal overload protection for safe continuous operation.
• Accessible impeller for cleaning and maintenance.
• Custom wiring, connectors, terminal arrangements and mounting orientation for OEM projects.

Quality Assurance, Certification and Acceptance

Hangzhou Beron Motor Co., Ltd. operates as a manufacturer with its own production and test resources. Our ISO9001:2015 quality management system covers the production chain, and the AC duct fan range carries CCC, CE and RoHS status; selected models have passed UL tests. For projects with formal acceptance requirements, we support factory acceptance testing and third-party inspection through the same quality documentation as routine production.

• ISO9001:2015 certified factory quality system.
• CCC, CE and RoHS status; UL-tested selected models.
• R&D and test centers in Hangzhou and Huzhou.
• Wind tunnel, noise, motor performance and aging laboratories.
• Pre-shipment inspection covering appearance, nameplates, assembly integrity, accessories and packaging.
• Factory acceptance tests and third-party inspection available when contractually required.

Customization, Documentation and Delivery

AC duct fan projects rarely stop at a catalogue part number. Distributors need stable product identity, plant engineers need installation documents, and OEM customers need the fan to match an existing enclosure or control circuit. We treat those requirements as part of the specification and adapt the product accordingly. Send drawings, samples or a written specification, and our engineering team evaluates the configuration, prepares the technical solution and returns a quotation.

• OEM/ODM review of drawings, samples and non-standard specifications.
• Custom voltage, frequency, power, speed and protection rating options.
• Export packaging, labels, nameplates and packing lists.
• Standard product MOQ is typically 100 pieces; custom MOQ depends on the process.
• Samples normally ready in 3-5 days; production runs take about 25-30 days.
• FOB, DAP and DDP shipment terms available, including customs coordination.
• 12-month warranty and online installation guidance.

Information We Use to Configure Your Solution

For a precise AC duct fan proposal, we build the selection around the actual duct system and operating point. The following project information is the starting point for our engineering and quotation.

• Application and installation type: residential, commercial kitchen, grow room, plant room, warehouse or OEM equipment.
• Duct size and layout: length, bends, dampers, filters and terminal devices.
• Required airflow in m³/h or CFM and available static pressure or duct resistance.
• Voltage, frequency and phase: 110V/220V, 50/60Hz.
• Noise limit at the operating point.
• Ambient temperature, humidity, dust or corrosive exposure.
• Required protection rating, thermal protection and destination-market approvals.
• Control needs: fixed speed, variable-speed controller, remote switch, or BMS signal.
• Volume forecast, packaging, labelling and delivery terms.

AC Duct Fan FAQs

What sizes of AC duct fan do you manufacture?

We manufacture 4-inch, 6-inch, 8-inch, 10-inch and 12-inch inline duct fans, together with a high-static-pressure centrifugal duct fan for longer and more restrictive runs. Each model is quoted with its airflow and static pressure curve, so duct size is the start of the selection rather than the whole selection.

Can an AC duct fan be installed as a booster in an existing duct run?

Yes. Our AC inline duct booster uses a galvanized steel housing and balanced aluminum impeller, and it includes a variable-speed controller so the installer can set the airflow against the existing duct resistance. Send us the duct diameter, layout and required airflow, and we will confirm the correct model and speed setting.

What voltage and frequency options are available?

Standard configurations include 110V and 220V versions, and our CE/RoHS-certified line includes 110V/220V dual-voltage models. For OEM projects we can also supply non-standard voltage, frequency, power or speed ratings after engineering review.

What are your MOQ and lead time for AC duct fans?

For standard models the MOQ is typically 100 pieces. Sample orders can be shipped within 3-5 days, and production orders usually take 25-30 days after confirmation, depending on quantity and custom features. We confirm the exact schedule in the quotation.

Can Beron Motor supply OEM/ODM duct fans?

Yes. As an AC duct fan manufacturer, we provide OEM/ODM support for non-standard specifications, drawings, samples and special packaging. Our engineering team evaluates your requirements and returns a configuration and quotation based on the actual duty point.