Optical Encoder 1000PPR Integrated Stepper, 8.5Nm – Nema 34 Closed_loop Heavy Duty Design

Product Overview

This Nema 34 closed-loop stepper motor delivers an impressive holding torque of 8.5Nm (1203.7oz.in), designed for high-load industrial applications. It integrates a 1000PPR (4000CPR) optical incremental encoder with differential output for closed-loop feedback, improving precision, reducing step loss, and enhancing system stability. With a robust shaft (14mm) and keyway support, this motor is ideal for precision positioning under heavy mechanical loads.

Key Features

• Integrated closed-loop feedback with high-resolution optical encoder

• Powerful 8.5Nm holding torque for demanding applications

• High current capability: 6.0A per phase

• Rugged 14mm shaft with 25mm keyway

• Nema 34 frame with 1.8° step angle

• Reliable differential encoder output for noise immunity

• Ideal for industrial automation, CNC, and motion control systems

Technical Specifications

Electrical Parameters

• Step Angle: 1.8°

• Holding Torque: 8.5Nm (1203.7oz.in)

• Rated Current/Phase: 6.0A

• Phase Resistance: 0.54Ω

• Inductance: 5.0mH ± 20% (1kHz)

• Insulation Class: B (130°C / 266°F)

Mechanical Dimensions

• Frame Size: 86 x 86mm (Nema 34)

• Body Length: 112.3mm

• Shaft Diameter: Φ14mm

• Shaft Length: 37mm

• Keyway Length: 25mm

• Number of Leads: 4

• Lead Length: 270mm

• Weight: 3.6kg

Encoder Details

• Encoder Type: Optical Incremental

• Resolution: Typically 1000PPR (4000CPR)

• Output Type: Differential

• Signal Channels: 2

• Supply Voltage: 5V

• Output High Voltage: < 4V

• Output Low Voltage: < 1V

Typical Applications

• Heavy-load CNC equipment

• Industrial robotic arms

• High-precision packaging and labeling machines

• Elevator systems and gantry drives

• Aerospace-grade test rigs and simulators

Why Choose This Motor?

Engineered for extreme torque and precision—perfect for industrial environments requiring maximum reliability and feedback control.