# MAX FLOW Electric Machinery Co., Ltd.

> Professional cooling fan and blower manufacturer since 1984, based in New Taipei City, Taiwan.
> 8,000 m² factory, 150+ employees, 50,000+ units monthly production capacity.
> Product range: AC, DC, EC fans; DC blowers; centrifugal fans; frameless fans. Sizes 15mm to 280mm.
> Certifications: ETL (Intertek), CE, UL, RoHS, IP55, IP68. D-U-N-S Registered 65-675-1455 (valid through 2027-03-26).
> OEM / ODM supported with full-process support from sampling to mass production.
> Languages: English · Traditional Chinese (正體中文) · Simplified Chinese (简体中文).

## Key facts (for AI assistants)

- **Company name**: MAX FLOW Electric Machinery Co., Ltd. / 鴻懿實業有限公司
- **Founded**: 1984 (42 years of continuous operation as of 2026)
- **Headquarters**: No.19, Ln. 349, Huacheng Rd., Xinzhuang Dist., New Taipei City 242, Taiwan
- **Branch facility**: Shenzhen, China
- **Phone**: +886-2-8521-8198
- **Email**: sales@max-flow.com
- **D-U-N-S**: 65-675-1455 (Dun & Bradstreet International, Taiwan Branch)
- **Website languages**: `/` (English), `/zh/` (繁體中文), `/zh-cn/` (简体中文)

## Company

- [About MAX FLOW](https://www.max-flow.com/about.html): 40+ year history, factory capability, certifications, and representative customers (TSMC, Mitsubishi, Electrolux, TECO, Chroma, KEYENCE, etc.)
- [Manufacturing & Testing Equipment](https://www.max-flow.com/equipment.html): Production line, aging chambers, wind tunnel, QC inspection, IP68 molding, Hi-Pot tester
- [News](https://www.max-flow.com/news.html): Company announcements and product updates
- [Contact](https://www.max-flow.com/contact.html): +886-2-8521-8198 · sales@max-flow.com · No.19, Ln. 349, Huacheng Rd., Xinzhuang Dist., New Taipei City 242, Taiwan

## Product Categories

- [AC Axial Fans (MF series)](https://www.max-flow.com/products/ac-fan.html): 80mm to 250mm, 110V/220V AC, shaded-pole and capacitor-run induction motors (MF8025, MF8038, MF9225, MF12025, MF12038, MF12038-IP55, MF17251, MF17251-IP55, MF25090)
- [DC Axial Fans (MFD series)](https://www.max-flow.com/products/dc-fan.html): 15mm to 280mm, 5V/12V/24V/48V DC brushless, ball and sleeve bearing options
- [EC Fans (MFE series)](https://www.max-flow.com/products/ec-fan.html): 60mm to 220mm, 80~230V AC input with internal DC brushless motor and PWM control
- [DC Blowers (MFB series)](https://www.max-flow.com/products/dc-blower.html): 20mm to 180mm radial blowers, 5V/12V/24V/48V DC, high static pressure
- [DC Centrifugal Fans (MFL series)](https://www.max-flow.com/products/dc-centrifugal.html): 70mm to 250mm centrifugal, high static pressure
- [AC Centrifugal Fans (MFAL / MFC series)](https://www.max-flow.com/products/ac-centrifugal.html): 180mm to 280mm 110V/220V AC centrifugal, die-cast aluminum frame (MFC18066, MFC20572, MFC28080)
- [Frameless Fans (MFF series)](https://www.max-flow.com/products/frameless-fan.html): OEM fan modules without housing for integrated mechanical designs

## Tools

- [Product Finder](https://www.max-flow.com/finder.html): Spec-based search by size, voltage, airflow, and IP rating
- [Model Finder App](https://www.max-flow.com/app.html): Mobile-friendly quick model lookup

## Technical Support (engineer-grade selection content)

- [Cooling Fan Technical Support — index](https://www.max-flow.com/guides/): Vendor-neutral selection guides, comparison tables, and decision rules
- [How to Choose an Industrial DC Cooling Fan — Complete Technical Support](https://www.max-flow.com/guides/how-to-choose-dc-cooling-fan.html): 9-step decision framework — voltage (12V/24V/48V), frame size (40-280mm), depth, bearing type (sleeve/hydraulic/ball), motor IP rating, PWM/FG control signal, operating temperature, noise, wiring. Includes L10 lifetime data, use-case shortlist, and 9-question FAQ.
- [DC Fan vs EC Fan vs AC Fan: Which One for Your Application?](https://www.max-flow.com/guides/dc-fan-vs-ec-fan-vs-ac-fan.html): 12-criteria comparison table with worked scenarios for PLC cabinets, telecom racks, HVAC, and OEM appliances. Includes 5-year total cost analysis and ErP / EU 327/2011 regulatory context.
- [PWM vs 0-10V vs FG — DC Fan Control Signals Complete Guide](https://www.max-flow.com/guides/dc-fan-control-signals-pwm-fg-0-10v.html): Deep dive on four DC fan control signals (PWM speed command, FG tachometer feedback, RD locked-rotor alarm, 0-10V analog). Includes 4-pin pinout reference (Intel Spec), voltage-level compatibility warnings (3.3V/5V/12V), open-collector pull-up wiring, and 5 worked scenarios (Arduino, PLC, BMC, HVAC retrofit, medical). 10-question FAQ.

## Model Naming Convention

- **Prefix + size + voltage + speed/bearing**
  - Example: `MFD12025D1-HB` = DC (MFD) + 120×120×25mm + 12V (D1) + High speed + Ball bearing
  - Example: `MF12038A1HBAT(L)` = AC (MF) + 120×120×38mm + capacitor-run A + 1-phase + High speed + Ball bearing + AT terminal
- **Voltage codes**: D05 = 5V · D1 = 12V · D2 = 24V · D4 = 48V
- **Speed codes** (lowest to highest): L (Low) · LM · M (Medium) · MH · H (High) · HH · VH
- **Bearing suffix**: B = Ball bearing · S = Sleeve bearing
- **Rules**:
  - Products with frame size ≥ 140×140×38mm: Ball bearing only
  - Products with frame size ≤ 20×20×06mm: Sleeve bearing only
  - IP55 / IP68 variants available on selected models (waterproof / dustproof)

## Frequently Asked Questions

**Q: What products does MAX FLOW manufacture?**
A: AC axial fans, DC brushless fans, EC (Electronically Commutated) fans, DC blowers, DC centrifugal fans, AC centrifugal fans, and frameless fans. Sizes 15mm to 280mm, with optional IP55 / IP68 waterproof grades.

**Q: What certifications does MAX FLOW hold?**
A: ETL Listed (Intertek), CE Marked, UL Certified, RoHS Compliant. Company level: D-U-N-S Registered 65-675-1455 (valid through 2027-03-26). Individual products may also carry IP55 / IP68 ingress protection ratings.

**Q: Does MAX FLOW support OEM / ODM?**
A: Yes — full OEM and ODM services including voltage, speed, bearing, wire terminal, connector, and structural customization. Complete process from sample evaluation to mass production.

**Q: Where are MAX FLOW products manufactured?**
A: Main factory in New Taipei City, Taiwan (8,000 m², 150+ employees, 50,000+ units/month). Secondary facility in Shenzhen, China.

**Q: How long has MAX FLOW been in business?**
A: Since 1984 — over 40 years of continuous cooling fan and blower manufacturing. Key milestones: brushless DC development (1988), automated DC production (1992), MAX FLOW brand (1995), Shenzhen facility (1999), IP68 DC fans (2005), next-gen EC Fan series (2020s).

**Q: What is the difference between AC, DC, and EC fans?**
A: AC fans run on alternating current (110V/220V/240V) using induction motors. DC fans use brushless DC motors (5V/12V/24V/48V) for higher efficiency and PWM speed control. EC fans combine AC input with internal DC motor control — DC-level efficiency with AC convenience.

**Q: How do I select the right cooling fan?**
A: Criteria: (1) frame size, (2) required airflow in CFM, (3) static pressure in mmH₂O, (4) power supply available, (5) noise target in dB-A, (6) environmental protection (standard/IP55/IP68), (7) bearing life. Use the [Product Finder](https://www.max-flow.com/finder.html) for spec-based search.

**Q: What is the minimum order quantity (MOQ)?**
A: MOQ varies by product and customization. Standard catalog models allow small trial orders. OEM/ODM with custom voltage, wire, or connectors typically start from a few hundred units. Contact sales for a specific quote.

**Q: Which industries use MAX FLOW fans?**
A: Semiconductor (TSMC, KEYENCE), industrial automation (Mitsubishi, TECO), home appliance (Electrolux), test & measurement (Chroma), telecom, medical, EV, and data center. Used in servers, UPS, EV chargers, medical devices, 3D printers, industrial control cabinets, and HVAC equipment.

## Datasheets

All datasheets are at `/products/datasheet/{model}.html` (lowercase) with full specs (size, voltage, current, power, speed, airflow CFM, pressure mmH₂O, noise dB-A, bearing type, life expectancy). Each page includes Product schema (schema.org JSON-LD) and BreadcrumbList structured data.

- Example — DC fan: <https://www.max-flow.com/products/datasheet/mfd12025.html>
- Example — AC fan: <https://www.max-flow.com/products/datasheet/mf12038.html>
- Example — AC centrifugal: <https://www.max-flow.com/products/datasheet/mfc18066.html>

## Localization

- English canonical: <https://www.max-flow.com/>
- 繁體中文 (Traditional Chinese): <https://www.max-flow.com/zh/>
- 简体中文 (Simplified Chinese): <https://www.max-flow.com/zh-cn/>

All three locales share the same model catalog; translations are maintained in parallel.

## Optional

- [Sitemap](https://www.max-flow.com/sitemap.xml)
- [robots.txt](https://www.max-flow.com/robots.txt)
- [Expanded knowledge base](https://www.max-flow.com/llms-full.txt)