Discover the 42mm slotless brushless DC motor—the largest and most powerful frame size in our compact slotless motor family. Engineered for applications requiring high torque, precision motion control, zero cogging torque, and long-term reliability.
Overview of the 42mm Slotless Brushless Motor
The 42mm slotless brushless DC motor series represents the pinnacle of power and performance within ironless motor technology. Designed without traditional laminated iron cores, this motor eliminates cogging torque entirely while delivering robust output power ranging from 66W to 160W and continuous rated torque up to 180 mN·m.
Built for heavy-duty industrial automation and high-load positioning platforms, it serves as an exceptional direct-drive alternative to traditional servo motors.
Key Features
- High Torque Density: Delivers the highest torque output in our slotless motor series (up to 3.44 N·m peak torque).
- Zero Cogging Torque: Ironless rotor design ensures ultra-smooth motion control without speed ripples.
- Low Noise & Vibration: Operates quietly under 50 dB at a 1-meter test distance.
- Industrial Durability: Features a robust stainless steel end bell, high-grade Sinter NdFeB magnets, and deep groove ball bearings designed for continuous (S1) or intermittent (S2) duty cycles.
- Custom Configurations: Fully customizable electrical parameters, including voltage ranges (18V–48V), custom windings, and integrated Hall sensors.
Technical Specifications (Model Part Number: 42ZWWC80)
| Technical Parameter | Specification Range / Standard Models |
| Frame Size | 42 mm |
| Rated Voltage | 18V – 48V (Customizable) |
| Rated Power | 66W – 160W (Customizable) |
| Rated Torque | 90 mN·m – 180 mN·m |
| Rated Speed | 5,400 RPM – 12,200 RPM |
| No-Load Speed | 6,800 RPM – 13,800 RPM |
| Motor Efficiency | Up to 87.9% |
| Acoustic Noise | <50 dB (Ambient 20dB, 1m distance) |
| Winding Connection | Star Connection |
| Insulation Class | Class B |
| Feedback Method | Hall Sensors (Encoder options available) |
| Rotor Inertia | 96.3 g·cm² |
| Materials | Stainless Steel (End Bell), Sinter NdFeB (Magnet), Carbon Steel (Shaft) |
Typical Applications
Engineered for demanding environments where precision and power density intersect:
- Industrial Automation Equipment: High-load positioning platforms and automated machinery.
- Robotics & Actuators: Robotic joints and heavy-duty micro-actuators.
- Precision Pump Systems: Medical fluid control and high-pressure metering pumps.
- Aerospace & Defense: Gimbal systems and specialized positioning mechanisms.
Frequently Asked Questions (FAQ)
Q1: Is the 42mm slotless brushless DC motor suitable for heavy-duty industrial use?
Yes, it is specifically designed for high-load and continuous-duty (S1/S2) industrial applications.
Q2: Can this motor replace a traditional compact servo motor?
Yes, especially in direct-drive or low-backlash systems requiring zero cogging and rapid acceleration.
Q3: Are torque and speed customizable?
Yes! We offer full OEM and ODM customization for custom windings, shaft configurations, and electrical parameters.
Q4: Is liquid cooling required?
Liquid cooling is optional and depends entirely on your specific load profile and duty cycle.
Call to Action (CTA)
Looking for custom motor specifications or bulk OEM pricing?
Contact our engineering team today via coreless-motor.com to tailor a 42mm slotless brushless motor to your exact requirements.
📌 We accept customized specification/parameters/drawings, contact us now for your requirement. Our engineering team will be delighted to make samples for you.
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📧 Email Us: chinaok321@gmail.com
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