Rtelligent 57AM30ED NEMA 23 Closed-Loop Stepper Servo Motor | 3.0 N·m | 5.0A Industrial Actuator
Description
Upgrade your industrial automation and high-load motion systems with the high-performance SPIDER Automation Rtelligent 57AM30ED Closed-Loop Stepper Servo Motor. Built on a standard NEMA 23 frame size with a 57 mm flange, this advanced closed-loop stepper combines the massive holding torque of a traditional stepper motor with the real-time feedback stability of a servo system. Operating at a rated current of 5.0A per phase with 0.8 Ω phase resistance and 3.7 mH phase inductance, it delivers an impressive holding torque of 3.0 N·m (30.6 kg·cm). Equipped with a rotor inertia of 720 g·cm², a standard 8 mm D-type shaft, and a precise 1.8° step angle, the 57AM30ED ensures smooth acceleration, responsive deceleration, and absolute positional integrity for mission-critical CNC machines, robotic arms, and automated manufacturing equipment.
Key Features
- NEMA 23 Frame Size (57 mm Flange): Industry-standard mounting configuration designed for easy mechanical integration into existing machinery.
- Closed-Loop Control Architecture: Continuously monitors and corrects rotor position to eliminate step loss and significantly reduce motor heating under load.
- High Holding Torque (3.0 N·m): Generates 30.6 kg·cm of holding force to maintain firm, reliable positioning during heavy workloads.
- Optimized Electrical Parameters: Operates at 5.0A per phase with 0.8 Ω resistance and 3.7 mH inductance for steady, efficient electrical performance.
- Smooth Mechanical Dynamics: 720 g·cm² rotor inertia paired with a precision 8 mm D-type shaft ensures stable momentum and exact 1.8° step execution.
Benefits
- Absolute Positional Accuracy: Closed-loop feedback corrects positioning errors instantly, ensuring zero missed steps during rapid multi-axis operations.
- Enhanced Thermal Efficiency: Reduced heat generation permits continuous duty cycles without premature thermal degradation.
- Reliable Heavy-Load Handling: Higher torque capacity easily drives demanding industrial axes and high-friction mechanical systems.
- Universal Compatibility: Standard 8 mm shaft and NEMA 23 mounting dimensions fit seamlessly with common industrial couplings, brackets, and drivers.
Applications
- CNC Machines & Routers: High-precision axis drive actuation for milling machines, plasma cutters, and heavy-duty engraving tables.
- Advanced Industrial Robotics: Articulated robotic arms, automated positioning stages, and high-load automated guided vehicles (AGVs).
- Automation Systems: Pick-and-place assembly lines, automated testing jigs, and high-speed multi-axis manufacturing equipment.
- Precision Prototyping: Custom mechatronic test benches and specialized laboratory machinery requiring closed-loop reliability.
Package Includes
- 1 x Rtelligent 57AM30ED Closed-Loop Stepper Servo Motor
Specifications
| Parameter | Specification |
|---|---|
| Item Type | Closed-Loop Stepper Servo Motor |
| Brand / Series | Rtelligent / AM Series (Distributed by SPIDER Automation) |
| Model No. | 57AM30ED |
| Frame Size / Flange | NEMA 23 / 57 mm |
| Holding Torque | 3.0 N·m (30.6 kg·cm) |
| Step Angle | 1.8° |
| Rated Current | 5.0 A per phase |
| Phase Resistance | 0.8 Ω |
| Phase Inductance | 3.7 mH |
| Detent Torque | 50 to 100 g·cm |
| Rotor Inertia | 720 g·cm² |
| Shaft Type & Diameter | D-Type Shaft | 8 mm Diameter |
| Shipping Weight | 1.747 kg |
| Shipping Dimensions | 19 × 14 × 8 cm |







