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1. Email confirmation
You will get an email confirming that we have received your enquiry.
2. Dedicated Account Manager
One of our team will be in touch to confirm your part(s) specification and condition.
3. Your quote
You will receive a comprehensive quote tailored to your specific needs.
| Specification | Description |
|---|---|
| Part Number | EMMS-ST-57-S-SE-G2 |
| Alternative Part Number | EMMSST57SSEG2 |
| Manufacturer | Festo |
| Motor Type | Stepper Motor |
| Nominal Voltage | 48 V DC |
| Nominal Current | 5 A |
| Max. Rotational Speed | 2,720 rpm (theoretical max. rotational speed while idling at nominal voltage) |
| Holding Torque | 0.8 Nm |
| Stepper Angle | 1.8 ±5% |
| Winding Resistance | 0.15 ±10% Ω |
| Winding Inductance | 0.5 mH |
| Output Mass Moment of Inertia | 0.29/0.30 kgcm² (with brake) |
| Radial Load on Shaft | 52 N |
| Axial Load on Shaft | 10 N |
| Mass Moment of Inertia of Rotor | 0.29 kgcm² |
| Brake Operating Voltage | 24 ±10% V DC |
| Brake Power | 8 W |
| Brake Holding Torque | 0.4 Nm |
| Brake Mass Moment of Inertia | 0.01 kgcm² |
| Response Delay | 2/6 ms |
| Separation Time | 10 ms |
| Encoder Type | Incremental |
| Encoder Measuring Principle | Opto-electrical |
| Pulses/Revolution | 500 1/rev |
| Encoder Interface | RS422, TTL, AB channel, zero index |
| Encoder Operating Voltage | 5 V DC |
| Protection Class | Motor Shaft: IP54, Motor Housing: IP65 |
| Ambient Temperature | –10 … +50 °C |
| Storage Temperature | –20 … +70 °C |
| Relative Air Humidity | 0 … 85% (non-condensing) |
| Certification | c UL us - Recognized (OL), RCM trademark |
| Materials Compliance | RoHS-compliant |
The stepper motor is a 2-phase hybrid technology unit with optional integrated encoder for closed-loop control and optional holding brake. It boasts a protection class of IP54, making it suitable for various industrial applications.
Yes, it can be paired with a planetary gear unit, specifically designed for compatibility with this motor size, offering various gear ratios and featuring life-time lubrication.
The motor is designed to operate within an ambient temperature range of –10 to +50°C and can be stored in temperatures ranging from –20 to +70°C. It also has an insulation protection class of B and a rated class of S1 according to EN 60034-1.
The motor optionally comes with an integrated optical encoder that operates on a 5V DC supply, providing 500 pulses per revolution and featuring an RS422 protocol line driver.
The maximum rotational speed of the motor varies depending on the model size and voltage supply, but it is designed to achieve high speeds, with theoretical maximums while idling at nominal voltage.
With a protection class of IP54 for the motor shaft and varying for the motor housing, the stepper motor is well-protected against dust ingress and water splashes, enhancing its durability and suitability for challenging industrial environments.
The holding brake, if present, operates on a 24V DC supply with a power consumption of 8 to 11 watts, depending on the motor size, and provides a reliable stopping and holding function.
Yes, it is designed to be used with a compatible motor controller, such as the CMMS-ST, which allows for precise control over position, speed, and torque, and corrects for any current following errors.
The motor is capable of handling both radial and axial loads on its shaft, with the capacity varying by size. This makes it versatile for different mounting orientations and operational demands.
Yes, the stepper motor adheres to RoHS standards, ensuring that it is manufactured with a restriction on the use of certain hazardous substances in electrical and electronic equipment.
This content has been produced using multiple sources. EU Automation takes no responsibility for the accuracy of this information. Always consult the original equipment manufacturer for the most up to date instructions and information.
All parts new or reconditioned are covered by EU Automation 12 month warranty
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