OEM & Custom Manufacturing

Custom Axial & Centrifugal Fan Manufacturing

CE-Certified Fans · OEM Sample in 5–10 Days · No Tooling Fee on Standard Frame Modifications

Send us a drawing, a datasheet or a competitor part number. Across our axial and centrifugal fan ranges, frame sizes span 20mm to 900mm, with AC, DC and EC options depending on the fan family. We reply within 1 business day, and OEM samples are ready in 5–10 days.

  • ISO 9001 Certified Factory
  • CE Certified (AC, DC & EC)
  • Private Label & White Label
  • No Tooling Fee on Standard Frame Modifications
  • Reply Within 1 Business Day
  • 20mm to 900mm Frame Range
Proventofan fan performance test bench measuring airflow and static pressure for custom OEM fans
200+
OEM Clients
25+
Countries
5–10
Days OEM Sample
50 pcs
OEM MOQ
01 / Customization

Every Parameter, Your Way

Send us a spec sheet, a competitor model number, or just describe what you need. We can customize the key OEM parameters below.

  • Frame Size

    20mm to 900mm — standard and non-standard frames. Axial, centrifugal and blower housing configurations.

  • Voltage & Motor Type

    AC options include 110/115V, 220/230V and 380/400V depending on fan family; DC options span 5–110V; EC options include 115V, 230V and 380V. Phase configuration is model-dependent.

  • Blade & Impeller

    Blade count, pitch angle, forward or backward curved. Materials: PP, PA nylon, aluminum, galvanized steel.

  • IP Rating

    IP34, IP44, IP54, IP55, IP65 — matched to your operating environment and safety requirements.

  • Speed Control

    Depending on fan family and model: 0–10V, PWM and selected Modbus RS-485 options. Alarm, locked-rotor protection and tachometer outputs are available on applicable DC/EC models.

  • Interface & Mounting

    Connector type, wire length, terminal box position, flange or panel mounting, private label and packaging.

02 / Fan Type 01

Custom Axial Fans

From 20mm DC miniature fans to 900mm AC external rotor units — we manufacture axial fans to your exact spec. AC, DC and EC motor types all available. CE certified on standard models. See the full axial fan range.

AC

AC Axial Fan

60mm – 280mm
Voltage
110V / 220V / 380V
Blade
PBT plastic or metal
IP Rating
IP34 / IP44 (customizable)
OEM Options
Connector, wire, label
Certification
CE
View AC Axial Fan Range →
DC

DC Axial Fan

225mm – 450mm
Voltage
24V / 48V / 110V DC
Motor
BLDC Brushless
Speed Control
PWM / 0–10V / RS-485
OEM Options
Voltage, wire, tachometer
Certification
CE
View DC Axial Fan Range →
DC

DC Brushless Fan

20mm – 200mm
Voltage
5V / 12V / 24V / 48V DC
Bearing
Ball or Sleeve
Speed Control
PWM / 0–10V
OEM Options
Voltage, wire, tachometer
Certification
CE
View DC Brushless Fan Range →
EC

EC Axial Fan

40mm – 630mm
Input
115V / 230V / 380V AC
Speed Control
0–10V / PWM / Modbus (larger models)
IP Rating
IP44 (IP54 available)
Certification
CE
View EC Axial Fan Range →
ACExternal Rotor

Axial Fan for Cold Room Condensers and Refrigeration Units

200mm – 900mm
Voltage
220/230V 1-ph (200–630mm) · 380/400V 3-ph (200–900mm)
IP Rating
IP44
Temp Range
-30°C to +60°C
OEM Options
Blade pitch, capacitor, cable length
Certification
CE
View AC External Rotor Fan Range →
03 / Fan Type 02

Custom Centrifugal Fans

Backward curved, forward curved and EC plug fans — we customize centrifugal fans and blowers for AHU, clean room, data center and ducted HVAC systems. Four product lines, one supplier. See the full centrifugal fan range.

AC

AC Centrifugal Fan

133mm – 372mm
Voltage
115 / 230 / 380 / 400V, frame-dependent
Blade
PA nylon or metal
IP Rating
IP44
Certification
CE
View AC Range →
DC

DC Centrifugal Fan

133mm – 450mm
Voltage
24V / 48V / 85V / 110V
Speed Control
PWM / 0–10V
Max Airflow
Up to 4,347 m³/h
Certification
CE
View DC Range →
EC

EC Centrifugal Fan

133mm – 560mm
Input
230V / 380V AC, model-dependent
Speed Control
0–10V / PWM; Modbus RS-485 on selected larger models
Max Airflow
Up to 12,800 m³/h
Certification
CE
View EC Range →
DCEC

Forward Curved Centrifugal Blower

97mm – 225mm
Voltage
24/48V DC · 230V AC
Inlet
Single or Dual
Max Static Pressure
1,265 Pa
Certification
CE
View Blower Range →

Have a drawing, datasheet or competitor part number? Send it over and we’ll match the spec.

Request an OEM Quote
04 / How It Works

From Spec to Shipping in 4 Steps

Send us your requirements on day one. We reply within 1 business day; OEM samples typically take 5–10 days, and volume production 18–25 days after sample approval.

  1. Submit Your Specs

    Day 1

    Send a drawing, a datasheet, or just describe what you need. We'll ask the right questions from there.

  2. Engineering Review

    Initial Reply Within 1 Business Day

    We reply within 1 business day and begin the engineering review. Feasibility, pricing and lead time are confirmed after the review. If you're switching from a competitor model, send us the part number and we'll cross-match the spec.

  3. Sample & Test

    5–10 Days

    You receive a physical sample for approval. Testing and available performance documentation depend on the model and validation scope confirmed during engineering review. Approve it before anything goes to production.

  4. Mass Production

    18–25 Days

    Every unit passes 100% factory QC before it leaves. We handle sea, air or express courier to 25+ countries. Pick whichever fits your timeline.

05 / Manufacturing Control

We Own the Factory

These are the manufacturing stages we currently confirm as in-house or self-owned:

  1. 01

    Motor winding, in-house

    We wind our own motors.

  2. 02

    Impeller molds, self-owned

    The same impeller tooling is used from sample to production.

  3. 03

    Aluminum housing die-casting, in-house

    We cast our own aluminum housings.

06 / Why Proventofan

OEM Manufacturing You Can Count On

200+ OEM clients across 25+ countries work with us on standard and custom fan projects. The capabilities below are the ones we quote against.

  • Factory Direct. No Middlemen.

    We own the factory. No trading company in between. You deal directly with the engineers who build your fan, at factory price.

  • CE Certified. ISO 9001 Factory.

    AC, DC and EC fans carry CE marking, and every line is built in our ISO 9001-certified facility. We confirm the applicable CE documentation for the selected fan and our ISO 9001 facility documentation during engineering review.

  • No Tooling Fee on Standard Frame Modifications

    Standard frame modifications come at no extra tooling cost. For custom frames, tooling is absorbed on volume orders above 1,000 pcs.

  • OEM Sample in 5–10 Days

    We reply within 1 business day. OEM custom samples are typically ready in 5–10 days; standard catalog models in 3–7 days. Available test documentation depends on the model and validation scope.

  • MOQ: 10 pcs Standard · 50 pcs OEM

    Standard models start from 10 pcs; OEM custom builds and private label orders start from 50 pcs. Private label and custom packaging can be set up from the first production run.

  • Responsive Engineering Support

    We reply to inquiries within 1 business day. WhatsApp, email or video call, whichever works for you. We work around your time zone and are comfortable starting from a datasheet, airflow curve or a rough requirement list.

07 / Request a Quote

Request a Custom Fan Quote

Send the details below and our engineers will review them before quoting — we reply within 1 business day.

What to include
  • Frame size — or a drawing, datasheet or competitor part number
  • Voltage and motor type (AC, DC or EC)
  • Airflow or static pressure target
  • IP rating and speed control requirement
  • Target quantity
  • Private label or packaging requirements (if any)

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

08 / FAQ

OEM Buyer Questions Answered

What is the minimum order quantity for custom fans?

Standard models start from 10 pcs; OEM custom builds and private-label orders start from 50 pcs. Send us your spec and quantity and we’ll confirm the applicable MOQ for your project.

Can you cross-reference a competitor model?

Yes. Send us the model number or datasheet. We will compare dimensions, airflow and electrical specifications and confirm whether we can offer a compatible equivalent or the closest suitable option.

Do you offer private label or white label supply?

Yes. Custom labels, packaging, documentation and NDA support are available for OEM orders. Branding scope and packaging requirements are confirmed during quoting. We work with 200+ OEM clients across 25+ countries.

What certifications can you provide?

Our AC, DC and EC fan lines carry CE marking, and our factory is ISO 9001 certified. We’ll confirm the applicable CE and ISO 9001 documentation during quoting.

Is there a tooling fee for custom specifications?

Standard frame modifications carry no tooling fee. For fully custom frames or impeller tooling, costs depend on complexity and are confirmed during engineering review. Tooling is absorbed into unit price on volume orders above 1,000 pcs.

How do I start an OEM inquiry?

Use the quote form on this page or WhatsApp us directly. Include frame size, voltage, airflow or static pressure target, IP rating, speed control requirement and target quantity. We reply within 1 business day, and confirm feasibility, pricing and lead time after engineering review.

Request a Quote

Tell us your fan requirements and we’ll get back to you with a suitable solution.