NEMA23-04CL Closed-Loop Stepper Motor with Driver
The NEMA23-04CL is a high-performance two-phase closed-loop stepper motor that combines the precision of a stepper motor with the reliability and smooth operation of a servo system. Featuring a built-in feedback sensor, it continuously monitors the rotor position to prevent missed steps and ensure accurate positioning within the motor’s physical limits. With a step angle of 1.8° (200 steps per revolution) and an impressive holding torque of 3 Nm, this motor is ideal for CNC machines, robotics, automation equipment, and other demanding motion-control applications. For added convenience, the matching closed-loop stepper motor driver is included in the package.
Key Features
- Closed-loop operation with integrated position feedback
- High holding torque of 3 Nm
- Precise 1.8° step angle (200 steps/revolution)
- Prevents step loss and improves positioning accuracy
- Combines the benefits of stepper and servo motor technologies
- Supplied with a compatible closed-loop driver module
Technical Specifications
| Parameter | Value |
|---|---|
| Model | 57SHD4931-20BQ |
| Shaft | Ø8 × 18 mm, single shaft |
| Rated Voltage | 3.15 V |
| Rated Current | 4.2 A |
| Phases | 2 |
| Phase Resistance | 0.75 Ω |
| Phase Inductance | 2.8 mH |
| Insulation Resistance | ≥100 MΩ at 500 VDC |
| Insulation Class | B (130°C) |
| Rotor Inertia | 650 g·cm² |
| Detent Torque | 0.1 Nm |
| Operating Temperature | –10°C to +50°C |
| Dimensions | 56 × 56 × 120 mm |
| Weight | 1.4 kg |
Package Contents
- NEMA23-04CL Closed-Loop Stepper Motor
- Closed-Loop Stepper Motor Driver Module
.
