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High-Speed EC Motor for Industrial Ventilation Systems

Suzhou Dowell Ventilation Technology Co., Ltd are a leading manufacturer of High Speed EC Motors with Die Casting Aluminum Casings. Specializing in custom solutions, we provide high-performance EC motors tailored to meet precise specifications. Partner with us to experience advanced efficiency and reliability in every motor!
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Overview


The High Speed EC Motor with Die Casting Aluminum Casing is a robust solution designed for high-performance ventilation systems, combining rapid airflow with durable construction for industrial applications. Engineered with a lightweight aluminum casing and precision-balanced rotor, this motor delivers reliable high-speed operation in demanding environments like manufacturing plants, tunnels, and HVAC systems.


Air Flow

100% load

75% load

50% load

AC motor

M dB

-2 dB

-3 dB

Switching method

4 fans on

3 fans on, 1 fan off

2 fan on, 2 fan off

EC motor

M dB

-10 dB

-15 dB

Variable speed control


75% speed

50% speed


Our EC motor supports Modbus, 0-10V, and PWM communication protocols, enabling easy integration into your existing control systems. The motor also includes configurable relays, 12VDC/24VDC outputs, and digital inputs, providing flexibility to meet your specific requirements. It complies with SELV standards, ensuring safe operation for critical applications.


With a power range of 0.3 kW to 4 kW, torque from 1.2 Nm to 48 Nm, and speeds ranging from 300 rpm to 3600 rpm, this motor is suitable for a wide variety of applications. It supports both 50/60Hz power input and offers voltage options such as 360-460VAC (three-phase) and 200-270VAC (single-phase). Custom voltage options are also available for 115VAC single-phase and 230VAC three-phase input.


The motor is available with IP55, IP65, and IP66 protection ratings, making it ideal for use in EC fan arrays, electronic cabinet cooling, clean rooms, heat exchangers, and HVAC systems. Whether you need an energy-efficient motor for a pharmaceutical system, a military HRAC, or a computer room air conditioning (CRAC) system, this motor delivers exceptional performance and reliability.


Parameter Value
Casing Material Die-Casting Aluminum
Mounting Options IEC B3, B35, B14, B35 Flange
Magnet Type NdFeB (Neodymium Iron Boron)
Efficiency Class IE5
Communication Protocols Modbus, 0-10V, PWM
Outputs 12VDC, 24VDC, Digital Inputs
Input Power Range 200-270VAC (Single-phase) / 360-460VAC (Three-phase)
Power Range 0.3 kW to 4 kW
Rated Torque Range 1.2 Nm to 48 Nm
Speed Range 300 rpm to 3600 rpm
Frequency 50/60Hz
Protection Rating IP55, IP65, IP66
Application Areas EC Fan Arrays, AHU, CRAC, HVAC, Clean Rooms, Heat Exchangers, Pharmaceutical Systems, Military HRAC


Why Choose Us


Heat Management Excellence: Aluminum casing lowers motor temperature by 15°C compared to cast iron, extending lifespan in high-heat environments.

Speed Control Precision: Vector control technology enables rapid acceleration (0-3000 RPM in 2 seconds) with minimal torque ripple, ideal for dynamic load applications.

Global Certification: UL, CE, and CSA approved, with RoHS compliance for use in international industrial projects.

Custom Solutions: Offer high-temperature coatings (up to 200°C) and waterproof upgrades (IP66) for specialized ventilation requirements.


Industries-Fan-Accessories


Die Casting Aluminum Casing: Lightweight (30% lighter than iron) yet durable, with excellent heat dissipation (thermal conductivity 180 W/mK) to maintain motor efficiency at high speeds (up to 4000 RPM).

High-Speed Performance: 4-pole EC motor achieves 90% efficiency at full speed, generating 8000 m³/h airflow for large-scale ventilation systems.

Vibration Resistance: Dynamic balancing (G2.5 standard) and precision ball bearings reduce vibration to ≤1.8 mm/s, protecting connected equipment from mechanical stress.

Temperature Monitoring: Built-in PTC thermistor alerts against overheating (130°C trip point), ensuring safe operation in high-temperature environments (up to 60°C ambient).

Modular Design: Interchangeable terminal boxes and mounting brackets simplify installation in axial, centrifugal, or mixed-flow fan configurations.



Frame size

Model

Max. Torque (N.m)

Max. Speed  (r/min)

Max. Power (kW)

71

T71ECI01

1.2

1500

0.19

T71ECI02

2.4

1500

0.38

T71ECI03

3.2

1500

0.5

90

T90ECI03

3.2

1500

0.5

T90ECI05

4.8

1500

0.75

T90ECI07

7

1500

1.1

100

T100ECI10

10

1500

1.57

T100ECI14

14

1500

2.2

T100ECI19

19

1500

2.98

132

T132ECI26

26

1500

4.08

71

T71ECI01

1.2

1800

0.23

T71ECI02

2.4

1800

0.45

T71ECI03

3.2

1800

0.6

90

T90ECI03

3.2

1800

0.6

T90ECI05

4.8

1800

0.9

T90ECI07

7

1800

1.32

100

T100ECI10

10

1800

1.88

T100ECI14

14

1800

2.64

T100ECI19

19

1800

3.58

71

T71ECI01

1.2

3600

0.45

T71ECI02

2.4

3600

0.75

T71ECI03

3.2

3600

1



Critical for high-speed ventilation, this motor is used in:

Tunnel Ventilation: Provides rapid air exchange in road and rail tunnels, removing exhaust fumes and maintaining safe oxygen levels.

HVAC Systems: Drives rooftop units and air handling systems in commercial buildings, achieving quick temperature regulation with variable speed control.

Industrial Cooling: Powers cooling fans for CNC machines, transformers, and welding equipment, preventing overheating in heavy-duty operations.

Agricultural Drying: High-speed airflow for grain dryers and food processing plants, reducing drying time by 20% compared to standard motors.


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We are focusing on design, manufacturing and sales of EC motors, EC fans, EC axial fans, EC centrifugal fans, fan impellers, which are electronically commutated PMSM internal rotor motors.

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 +86 153 7008 7969
 No.888, Xingrui Road, Wujiang District, Suzhou, Jiangsu
     Province, P.R. of China, 215000

Canada Contact

 Mr. Steven Xu
 +1 514 699 3988
 675,36e Avenue,Lachine,Quebec, Canada    
     H8T 3L1
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