Estun EM3J-04ATA221 400W AC Servo Motor with 7000 RPM and Low Inertia for High-Speed Applications
The Estun EM3J-04ATA221 is a high-performance 400W (0.4kW) AC Servo Motor engineered for precision and speed. As a flagship model in the EM3J Series, it is specifically designed for high-dynamic applications that require rapid acceleration and extreme rotational speeds. With a rated speed of 3,000 RPM and the capability to reach up to 7,000 RPM, this motor is the ideal choice for electronic assembly, SMT pick-and-place, and high-speed packaging.
The EM3J-04ATA221 features a compact frame and a low-inertia rotor, ensuring millisecond response times and high-frequency start-stop precision.
Use these core specifications to ensure exact mechanical and electrical matching for your automation system:
| Feature | Specification |
|---|---|
| Model Number | EM3J-04ATA221 |
| Series | EM3J High-Speed Series |
| Rated Output | 400 W (0.4 kW) |
| Input Voltage | 200 V - 230 V AC |
| Rated Torque | 1.27 N*m (Peak Torque: 4.45 N*m) |
| Rated Speed | 3000 r/min |
| Maximum Speed | 7000 r/min (High-Speed Capability) |
| Encoder Type | 20-bit Incremental / 23-bit Absolute |
| Inertia Type | Low Inertia (High Response) |
| Protection Rating | IP65 (Dust-proof and water-resistant) |
| Shaft Design | Keyway with Oil Seal (Standard) |
The EM3J-04ATA221 stands out with its maximum speed of 7,000 RPM. This allows for significantly faster cycle times in precision manufacturing, directly increasing the total throughput of your production line.
Designed with a lightweight rotor, this motor offers a high torque-to-inertia ratio. This enables near-instantaneous acceleration and deceleration, making it perfect for high-speed indexing and synchronized multi-axis motion.
Equipped with advanced encoder technology, the motor provides over 1 million pulses per revolution. This high resolution ensures smooth rotation even at very low speeds and maintains sub-micron positioning accuracy for delicate electronic components.
Estun's advanced electromagnetic design reduces heat generation while maintaining a compact footprint. The EM3J-04ATA221 fits into tight mechanical spaces without compromising on power density or reliability.
- Electronic Component Assembly: High-speed pick-and-place and SMT
- Semiconductor Manufacturing: Precise wafer handling and bonding
- Medical Device Production: Accurate reagent handling and sample management
- 3C Industry Automation: Fast-cycle testing and assembly for mobile devices
- Packaging Machinery: High-frequency labeling and synchronized sorting
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