Optical Encoder Differential Type Integrated Stepper, 2Nm – Nema 23 High Torque Closed_loop Design

Product Overview

The 23E1K-20 is a powerful Nema 23 closed-loop stepper motor equipped with a differential output optical incremental encoder featuring 2 channels. It provides a high holding torque of 2Nm (283.22oz.in) at a rated current of 5.0A per phase, delivering precise, reliable motion control with excellent dynamic response and reduced thermal load.

Key Features

• High torque 2Nm Nema 23 stepper motor with standard 1.8° step angle

• Integrated 2-channel differential optical incremental encoder for closed-loop feedback

• Rated current of 5.0A per phase with low phase resistance for efficient operation

• Robust 98.3mm body length with 8mm diameter shaft for heavy-duty applications

• Designed for demanding CNC, robotics, and automation tasks

Technical Specifications

Electrical Parameters

• Step Angle: 1.8°

• Holding Torque: 2Nm (0.2Nm / 283.22oz.in)

• Rated Current/Phase: 5.0A

• Phase Resistance: 0.4Ω

• Inductance: 1.8mH ± 20% (1kHz)

• Insulation Class: B (130°C / 266°F)

Mechanical Dimensions

• Frame Size: 57 x 57mm (Nema 23)

• Body Length: 98.3mm

• Shaft Diameter: Φ8mm

• Shaft Length: 21mm

• D-Cut Shaft Length: 15mm

• Lead Length: 270mm

• Weight: 1.06kg

Encoder Details

• Encoder Type: Optical Incremental

• Output Channels: 2 Channels (Differential)

• Supply Voltage: 5V

• Output High Voltage: < 4V

• Output Low Voltage: < 1V

Typical Applications

• Heavy industrial CNC machinery

• High-precision robotic arms

• Automation equipment requiring high torque

• Packaging, labeling, and pick-and-place machines

• Precision positioning systems in manufacturing

Why Choose This Motor?

The 23E1K-20 delivers exceptional torque and precision with integrated closed-loop feedback, ideal for high-demand industrial automation and motion control applications.