Shanghai Senyin Electrical Co., Ltd.
External-Rotor Motor & Fan Manufacturer — Factory in Jiading, Shanghai
Who We Are
Shanghai Senyin Electrical Co., Ltd. is a professional manufacturer of external-rotor and internal-rotor DC/AC motors, together with centrifugal fans, axial fans and special electric (motor) fans built on these motor platforms. Our products are widely applied in fresh air ventilation, air purification, dehumidification, elevators, new energy, telecommunications, data centers, medical and pharmaceutical equipment, rail transit, military special motor cooling, sweepers, HVAC, refrigeration and air conditioning. Senyin products are exported to Europe, the Americas, Southeast Asia, the Middle East and other regions, and have passed 3C, CE, ETL, UL and RoHS certifications.
As an integrated manufacturer, we handle everything in-house: motor winding, EC stator production, CNC machining, press-fitting, assembly and performance testing. This vertical integration is what allows us to deliver 225 standard models from 63 mm to 630 mm plus full OEM customization — with consistent quality, shorter lead times and factory-direct pricing.
Why Work With Senyin
- 3,000+ cooperative customers worldwide
- Products and services exported to 10+ countries and regions
- 11+ years of manufacturing experience
- Complete certifications: 3C, CE, ETL, UL, RoHS
- Full EC product range: backward-curved, dual-inlet / single-inlet forward-curved centrifugal fans, axial fans and box-type fans
- R&D-driven: green technology, energy saving and low noise
Our Production
Located at No. 285, Lane 5000, Baoqian Road, Waigang Town, Jiading District, Shanghai, our plant runs the full production chain: motor winding and EC stator lines, CNC machining and grinding, press-fitting of impellers, final fan assembly and finished-goods warehousing.
Quality & Testing
Every fan is tested for air performance, noise and insulation resistance before shipping. Our in-house test lab is equipped with a fan performance wind tunnel, composite salt spray chamber, magnetic analyzer and motor comprehensive test systems — covering air performance, electrical strength, insulation and corrosion resistance. Fan impellers are available in galvanized steel, cold-rolled steel or plastic (PA66) depending on model; protection classes up to IP54 and insulation class F are standard. Our quality system follows ISO 9001 standards, and product certifications include 3C, CE, ETL, UL and RoHS.
Performance data for every model in our catalog is measured in-house: airflow, static pressure, noise and power consumption are verified on the wind tunnel, while salt spray testing confirms corrosion resistance for outdoor and harsh-environment applications. Full technical documentation accompanies every shipment.
Partner With Us
Looking for a reliable fan manufacturer for OEM, ODM or distribution? Tell us your airflow, static pressure and noise requirements — we will recommend the right model and send a quotation within 24 hours.