Axial and Centrifugal Fan Manufacturer: AC, DC and EC

OEM supply to HVAC manufacturers and system integrators in 25+ countries. Fan sizes from 20mm to 900mm across our axial and centrifugal ranges. Standard models ship in 15–20 days. Standard samples ready in 3–7 days.

Proventofan axial and centrifugal fans — AC, DC and EC, 20mm to 900mm
OEM Clients
200+ Worldwide
Countries Supplied
25+
Certification
CE Certified · ISO 9001 Facility
03 / EC Fan Solutions

Switch to EC. Lower Energy Use at Part Load.

The speed controller is built into the motor housing. No external VFD, no extra panel space. Connect a 0–10V or PWM signal from your BMS (Modbus RS-485 on selected larger EC models) and the motor adjusts speed on its own. Frame sizes from 133mm to 560mm are available for common centrifugal fan applications. Confirm mounting dimensions when replacing an existing AC fan.

Estimate your own savings → EC Fan Energy Savings Calculator

04 / Why Proventofan

What You Get From Proventofan

  • OEM Capability

    Standard models start from 10 units; OEM custom builds and private-label orders start from 50 units. White-label packaging and NDA support are available for OEM projects. Sample first, then confirm production volumes. We supply HVAC manufacturers and system integrators across 25+ countries.

  • EC Technology

    EC motors hold their efficiency across a wide speed range. The speed controller is built into the motor housing. 0–10V and PWM as standard, with Modbus RS-485 on selected larger EC models. No separate VFD required. Centrifugal range from 133mm to 560mm.

  • Fast Delivery

    Standard samples ship within 3 to 7 days. We respond to inquiries within 1 business day. OEM custom samples take 5–10 days; volume orders run 15–20 days for standard models and 18–25 days for OEM builds.

  • Technical Support

    Our engineers review your application before quoting. Fan selection, BMS wiring and static pressure matching are all covered. If your specification changes, we review the revision and reconfirm feasibility, lead time and cost before proceeding.

05 / OEM Supply

Spec It. We Build It.

Custom axial, centrifugal and EC fans to your voltage, frame size, IP rating and control interface. White-label packaging and NDA support are available for OEM projects. OEM custom builds start from 50 units.

5–10
Days to OEM Sample
200+
OEM Clients
View OEM Capabilities →
06 / Factory & Manufacturing

Built in Our Own Factory

We own the factory. We wind our own motors, cast our own aluminum housings and own our impeller molds. Every unit goes through 100% QC before it ships.

  • Motor Winding, In-House
  • Aluminum Housing Die-Casting, In-House
  • Impeller Molds, Self-Owned
  • 100% QC Before Shipment
07 / Get Started

Ready to Source Your Next Fan?

Send us your specs. Frame size, voltage, airflow and IP rating. We reply within 1 business day, and standard samples are ready in 3 to 7 days.

What to include
  • Fan type and frame size — or the model of the fan you’re replacing
  • Voltage and motor type (AC, DC or EC)
  • Airflow requirement and static pressure
  • Quantity
  • IP rating and operating temperature
  • Drawing or datasheet of the fan you’re replacing (if any)

Prefer email or WhatsApp?
Email: andy@proventofan.com · WhatsApp: +86 15057523756

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