Shenzhen HengDrive Technologies Co., Ltd. is one of the most reliable manufacturers and suppliers of internal rotor motor in China. With abundant experience, we warmly welcome you to wholesale bulk internal rotor motor made in China here from our factory. We also accept customized orders.
Products Description
Characteristic: CW & CCW, Signal function available, Locked rotor protection, Stepless speed regulation, Low noise, Low EMI, Long life 10000-50000hrs
Notice: Data in this typical specification sheet are for other certain customer. Voltage, rated torque, speed, current, power and shaft extension feature & dimension can be changed to meet customer specific requirement.
Outline Drawing
| Usable machine screw length 4.0mm max. from motor mounting surface | Unit: Millimeter |
Performance Curve :
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Product Overview
Our Efficiency Internal Rotor Motor is designed for industrial applications requiring compact structure, high torque density, and smooth operation. With a precision-balanced rotor and optimized electromagnetic design, it delivers low vibration, reduced noise, and energy efficiency up to IE4 level. Ideal for pumps, fans, compressors, CNC machines, and robotics.
Key Features
High Power Density:
Advanced magnetic circuit design enables higher output in a smaller frame size.
Robust Construction:
Die-cast aluminum housing with IP54–IP66 protection, suitable for harsh environments.
Wide Speed Range:
Compatible with VFD control, offering constant torque from low to rated speed.
Thermal Management:
Integrated cooling fins and optional forced ventilation for continuous duty.
Manufacturing Advantages
15+ Years of Experience:
Specialized in motor R&D and mass production for global industrial OEMs.
In-House Core Manufacturing:
Precision stamping of silicon steel laminations and automated winding lines ensure consistent quality.
Customization Available:
Shaft dimensions, flange types, voltage (12V–690V), and feedback sensors (encoder/hall) tailored to your needs.
Rapid Sampling & Logistics:
4–6 weeks for prototypes; global shipping via sea/air with real-time tracking.
Certifications
- CE, UL, RoHS, REACH – Compliant with EU and North American safety and environmental standards.
- ISO 9001:2015 – Certified production and quality management system.
- IE4 Efficiency Grade – Verified by third-party test reports (available upon request).
Technical Specifications (Example: 2.2kW 4-pole)
- Rated Power: 2.2 kW
- Rated Speed: 1450 rpm
- Rated Torque: 14.5 N·m
- Efficiency: ≥90% (at full load)
- Insulation Class: F (155°C)
- Duty Cycle: S1 (continuous)
- Efficiency Internal Rotor Motor Applications
- Industrial automation, HVAC pumps, hydraulic power units, electric vehicles, and precision machinery.
Contact
For datasheets, 3D drawings, or a quote, please contact our sales engineering team. Custom designs are welcome.
Reliable power. Compact performance. Certified quality.
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