Optical Feedback 1000PPR Encoder Integrated Stepper, 0.02Nm – Nema 8 Closed_loop Compact Design

Product Overview

This Nema 8 closed-loop stepper motor integrates a 1000PPR (4000CPR) optical incremental encoder, delivering precise feedback and reliable motion control. With a rated current of 0.6A and enhanced 0.02Nm holding torque, it offers increased accuracy, minimal heat buildup, and greater energy efficiency—all in a compact 20mm frame. Perfect for space-constrained, high-precision applications.

Key Features

• Closed-loop feedback to prevent step loss and boost accuracy

• 0.02Nm (2.83oz.in) holding torque with just 0.6A current

• Compact design: 20x20mm frame, 52mm body, 4mm shaft diameter

• High-resolution 1000PPR optical encoder with differential signal output

• Ideal for precision equipment such as micro CNCs, robotics, and lab automation

Technical Specifications

Electrical Parameters

• Step Angle: 1.8°

• Holding Torque: 0.02Nm (2.83oz.in)

• Rated Current/Phase: 0.6A

• Resistance: 8.3Ω ±10%

• Inductance: 2.2mH ±20% (1kHz)

• Insulation Class: B (130°C / 266°F)

Mechanical Dimensions

• Frame Size: 20 x 20mm

• Body Length: 52mm

• Shaft Diameter: Φ4mm

• Shaft Length: 20mm

• Lead Wire Length: 500mm

• Weight: 0.098kg

Encoder Details

• Type: Optical Incremental

• Resolution: 1000PPR (4000CPR)

• Output Channels: 3 Channels

• Voltage Range: 4.5V – 5.5V

• Output Type: Differential

• High-Level Output Voltage: 2.4V – Vcc

• Low-Level Output Voltage: ≤ 0.4V

Typical Applications

• Miniature CNC machines

• Compact robotics

• Medical device positioning

• Laboratory automation systems

• Precision optical control systems

Why Choose This Motor?

A highly efficient, feedback-controlled micro stepper motor built for accuracy, stability, and performance in tight spaces.