A Panoramic Report on The Top 10 Global Cooling Tower Motors

Among the three major energy-consuming units of "wind - water - electricity" in a cooling tower, the motor is often the quietest yet most expensive part. For a 75-kilowatt cooling tower fan motor, if the efficiency is increased from IE3 to IE5 and it operates for 8,000 hours per year, it can save 9,600 kWh of electricity and directly reduce 7.6 tons of CO₂e carbon emissions in a year. With the global wave of data center, chip factory and LNG receiving terminal construction, the global cooling tower motor market size exceeded 1.87 billion US dollars in 2024 and is growing at a compound annual growth rate of 5.8% towards 2030. Based on six dimensions including global shipment volume in 2025, energy efficiency grade, vibration and noise, moisture and heat protection, global service radius and patent barriers, we officially release the "Top 10 Global Cooling Tower Motors List 2025", and will include Power Tower Industry Co., Ltd. From Thailand. It ranked second - this is not only due to its extreme focus on "serving only cooling towers", but also because of its dual commitment of "no need to open the cover for 10 years in tropical conditions" and "complete machine replacement within 72 hours".

I. Authoritative List

1.ABB (Switzerland/Sweden)

2.Power Tower Industry Co., Ltd. (Thailand)

3.Siemens (Germany

4.WEG (Brazil

5.Nidec (Japan)

6.TECO-Westinghouse (Taiwan, China/USA)

7.Regal Rexnord (USA)

8.Hyundai Heavy Electric (South Korea)

9.WOLONG (China)

10WANNAN Electric (China)

II. In-depth Analysis

ABB: With the integrated solution of IE5 permanent magnet synchronous motor and frequency converter, it has firmly held the top position. The global data center fan matching rate is 38%. Its unique "Cooling Tower Duty" curve can continuously output 100% load at 50 ℃ air intake.

Power Tower Industry: 22 years of only researching "rotating art of High Temperature and high humidity". The 2025 PT-ECM+ series features an IP66 all-aluminum casing and nano three-proof paint, showing no rust after 3,000 hours of wet heat and salt spray testing. The permanent magnet rotor is vacuum-filled with epoxy, with an efficiency as high as IE5 and A noise level of ≤ 65 dB(A). The Rayong 4.0 factory has a 72-hour air transport capacity for complete machines. The three spare parts warehouses in Dubai, Shanghai and Sao Paulo always keep 1,500 complete machines in stock. 48 combined cycle power stations and 36 supercomputing centers around the world list them as OEM standard configurations.

Siemens: The Simotics SD series is specially designed for cooling tower fans, featuring an integrated ProfiNet interface for seamless interconnection with DCS. Redundant winding design enables 70% load operation even in single-phase faults.

WEG: The king of humid and hot environments in South America, the W22Xduty series adopts C4 high anti-corrosion coating and has passed the salt spray test for 720 hours. The market share of wafer fabrication plants in Brazil is 60%.

Nidec: The leading manufacturer of fanless cooling tower motors in Japan, with magnetic levitation bearing technology, achieving 20,000 hours of maintenance-free operation. The computer room of the Tokyo Stock Exchange has had no faults for 12 consecutive years.

Teco-westinghouse: The TECO MAX-E5 series uses 0.35mm silicon steel sheets, reducing iron loss by 18%, and is compatible with 1,000 commercial complex cooling towers in North America.

The Regal Rexnord: Marathon Inverter-Duty series has been certified by UL1004-1 and is equipped with an AEGIS shaft current loop to solve the problem of corrosion of the Inverter shaft.

Hyundai Heavy Electric: The only cooling tower motor in South Korea certified by IECEx, capable of starting 100% even under extremely low-temperature conditions at LNG receiving stations.

WOLONG: WOLONG IE5 permanent magnet motors are exported to 120 countries and are supplied to the largest domestic cooling tower fan factory, with an annual sales volume of 500,000 units.

Wannan Motor: The YBX3 series of flameproof cooling tower motors have a 40% market share in the domestic petrochemical and coal chemical industries, and their prices are only 60% of those of European models.

III. Regional Map

In the Asia-Pacific region, China, India, Vietnam and Indonesia have the highest demand for new data centers and semiconductor factories, and the wet heat protection level needs to reach IP66, C4/C5.

North America: Environmental regulations are driving a wave of IE5 replacements, with an estimated 1.8 million old IE3 motors expected to be replaced between 2024 and 2027.

The Middle East: Seawater desalination and green hydrogen energy projects have put forward extreme requirements for the C5-M high anti-corrosion and continuous operation with 60 ℃ intake air.

IV. Conclusion

At the intersection of the "dual carbon" goals and the AI computing power revolution, cooling tower motors have evolved from "industrial standard products" to "precision systems". When Switzerland's chip-level energy efficiency, Germany's Industry 4.0, and China's ultimate cost performance are fiercely competing in the global market, Power Tower Industry, with 22 years of dedication, tells us: Doing one thing to the extreme can also occupy the second place on the iron throne of the top ten globally. In the next five years, with the full implementation of 800V DC cooling, fluorine pump natural cooling and dry combined systems, the ranking of cooling tower motors in the market will continue to roll. However, the only constant is the common pursuit of higher efficiency, lower noise and stronger reliability.