Optical Encoder 1000PPR Integrated Stepper, 14Ncm – Nema 17 Compact Closed_loop Design

Product Overview

This compact Nema 17 closed-loop stepper motor integrates a 1000PPR (4000CPR) optical incremental encoder with differential output. With a holding torque of 14Ncm (19.83oz.in) and rated current of 1.0A, it delivers smooth, accurate motion control while offering advantages over open-loop systems such as higher precision, reduced heat, lower power consumption, and superior dynamic response. Ideal for applications where reliability and compact size are critical.

Key Features

• Nema 17 closed-loop stepper with 1.8° step angle and 14Ncm holding torque

• Integrated 1000PPR optical encoder with differential 2-channel output

• Rated current of 1.0A per phase and 3.7Ω resistance

• Compact motor length of only 41.5mm

• Excellent position accuracy and anti-step-loss capability

• Ideal for precision robotics, automation, and small CNC systems

Technical Specifications

Electrical Parameters

• Step Angle: 1.8°

• Holding Torque: 14Ncm (0.14Nm / 19.83oz.in)

• Rated Current/Phase: 1.0A

• Phase Resistance: 3.7Ω

• Inductance: 4.0mH ± 20% (1kHz)

• Insulation Class: B (130°C / 266°F)

Mechanical Dimensions

• Frame Size: 42 x 42mm (Nema 17)

• Body Length: 41.5mm

• Shaft Diameter: Φ5mm

• Shaft Length: 20mm

• D-Cut Shaft Length: 15mm

• Lead Length: 500mm

• Weight: 0.206kg

Encoder Details

• Type: Optical Incremental

• Resolution: 1000PPR (4000CPR)

• Output Channels: 2 (Differential)

• Supply Voltage: 5V

• Output High Voltage: > 4V

• Output Low Voltage: < 1V

Typical Applications

• Compact CNC routers

• 3D printers with closed-loop feedback

• Pick-and-place robotic arms

• Small industrial automation systems

• Precision lab equipment

Why Choose This Motor?

An ultra-compact Nema 17 stepper motor with 1000PPR encoder—designed for high-precision closed-loop control in space-constrained motion applications.