Estun EMJ-04APH21 0.4kW High Torque AC Servo Motor with 2500 P/R Encoder and IP65 Protection for Industrial Automation
The Estun EMJ-04APH21 is a high-performance AC servo motor from the Estun EMJ series, designed for precise speed and position control in demanding industrial environments. With a rated power of 400W (0.4kW), this model is optimized for applications requiring high torque density and rapid dynamic response.
This motor integrates a 2500 P/R incremental encoder (supports serial absolute encoder upgrade), ensuring stable operation even at near-zero speeds. As a cost-effective alternative to European or Japanese brands, the EMJ-04APH21 delivers excellent value without compromising on build quality or performance.
| Parameter | Value |
|---|---|
| Model | EMJ-04APH21 |
| Rated Power | 400W (0.4 kW) |
| Rated Torque | 1.27 N*m (Typical for 400W class) |
| Peak Torque | 3.81 N*m (300% Overload Capacity) |
| Rated Speed | 3000 rpm |
| Max Speed | 4500 - 5000 rpm |
| Input Voltage | 200VAC / 220VAC |
| Encoder Type | Incremental: 2500 P/R (Supports 17-bit/23-bit absolute) |
| Protection Class | IP65 (Excluding shaft and connector) |
| Cooling Method | Natural Air Cooling (Self-cooled) |
- High Overload Capacity: Supports up to 300% peak torque, enabling handling of sudden load fluctuations and high acceleration starts without stalling.
- High Precision Control: Equipped with a 2500-line incremental encoder, ensuring high resolution for precise positioning in CNC and pick-and-place applications.
- Rugged Design: IP65 protection rating makes it resistant to dust and water jets, suitable for harsh workshop environments like woodworking or textile machinery.
- Compact & Efficient: The 400W frame size allows for installation in space-constrained equipment while maintaining high thermal efficiency.
The Estun EMJ-04APH21 is engineered for high-cycle industrial automation, specifically excelling in:
- Textile Machinery: High-speed winding and precise yarn laying
- Electronics Assembly: Small PCB drilling machines and pick-and-place heads
- Packaging Machinery: Labeling machines and small conveyor indexing drives
- General Automation: 3D printers (industrial grade), robotic arms (small payload), and automatic tool changers
In the competitive 400W servo market, the EMJ series stands out for its value engineering and reliability.
- Compatibility: Shares standard flange dimensions (60mm or 80mm frame) with other Asian market motors, making mechanical replacement easy
- Integration: Pairs seamlessly with Estun ProNet series drives or EtherCAT models, ensuring plug-and-play functionality
- Global Support: Standard 1-year manufacturer warranty and global shipping via DHL/FedEx
- Global Shipping: Fast shipping from regional warehouses (subject to stock)
- Documentation: Datasheets, CAD drawings, and wiring diagrams available upon request
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