China Factory Transformer Cooling Fan Motors AIR / AIS / YFB 0.25kW 0.37kW 0.55kW – OEM Manufacturer & Exporter
China factory group company Sealocean specializes in manufacturing transformer cooling fan electric motors for industrial power transformers, substations, electrical distribution systems and heavy-duty cooling equipment. The company serially produces transformer blowing motors with powers of 0.25kW, 0.37kW and 0.55kW operating at 1500rpm (4-pole design).
Official Website: https://www.sealocean-international.com
Industrial Transformer Cooling Motor Solutions
These motors are specially designed for transformer cooling systems and fully comply with GOST, DIN and IEC standards. The winding system uses waterproof insulation technology with “Tr” protection for long-term outdoor operation in humid and cold environments.
- Protection Class: IP55
- Insulation Class: F
- Mounting: IM3281 / IM3681
- Frequency: 50Hz / 60Hz
- Cooling Type: TEFC
- Climate Version: U1 / UHL1 / HL1
- Operating Temperature: -60°C to +40°C
Technical Parameters & Dimensions
| Power | Series | Shaft Diameter | Axis Height | Speed |
|---|---|---|---|---|
| 0.25kW | AIR63 / ADM63 / AIS71A4 | 14mm | 63mm / 71mm | 1500rpm |
| 0.37kW | AIR63V4 Tr / AIS71V4 | 14mm | 63mm | 1500rpm |
| 0.55kW | AIR71A4 Tr / AIS80A4 | 19mm or customized | 71mm | 1500rpm |
OEM Custom Manufacturing
Chinese motor factories can customize:
- Shaft diameter and shaft extension
- Special waterproof windings
- Low-temperature grease bearings
- Flange dimensions
- Voltage and frequency
- Outdoor anti-condensation design
- Custom impeller compatibility
Request Factory Quotation & Drawings
Email: [email protected]
Export Department: [email protected]
Website: www.sealocean-international.com
FAQ
What is the difference between AIR and AIS motors?
AIR motors follow GOST/CIS standards while AIS motors generally follow DIN/European dimensions.
Can the shaft size be modified?
Yes. OEM customization allows the use of thin or enlarged shafts depending on impeller requirements.
Are these motors suitable for cold climates?
Yes. UHL1 and HL1 versions support operation down to -60°C.
Motores de Ventilación para Transformadores AIR / AIS / YFB – Fabricante y Exportador de China
El grupo industrial Sealocean fabrica motores eléctricos para sistemas de enfriamiento de transformadores de potencia industrial. Los motores están disponibles en 0.25kW, 0.37kW y 0.55kW con velocidad de 1500rpm.
Características Técnicas
- Protección IP55
- Aislamiento Clase F
- Montaje IM3281 / IM3681
- Diseño impermeable “Tr”
- Temperatura de trabajo: -60°C a +40°C
Compatibilidad Internacional
Los motores cumplen normas GOST, DIN e IEC para aplicaciones industriales y subestaciones eléctricas.
Contacto Comercial
Correo: [email protected]
Exportación: [email protected]
Motores de Resfriamento para Transformadores AIR / AIS / YFB – Fabricante Chinês Sealocean
A Sealocean produz motores elétricos industriais para sistemas de ventilação e resfriamento de transformadores. Disponível em 0,25kW, 0,37kW e 0,55kW com velocidade de 1500rpm.
Especificações Técnicas
- Proteção IP55
- Classe de isolamento F
- Montagem IM3281 / IM3681
- Projeto resistente à umidade
- Compatível com normas GOST e IEC
Aplicações Industriais
Adequado para transformadores de potência, subestações, mineração, energia elétrica e sistemas industriais pesados.
Solicite Cotação OEM
E-mail: [email protected]
Exportação: [email protected]













