RobStride 04 QDD 120N·m Integrated Actuator Module – 48V, 9:1 Ratio, Dual Magnetic Encoder, IP52, 700W Output

Overview

The RobStride 04 QDD 120N·m Integrated Actuator Module combines a high-torque brushless motor, precision planetary reducer, dual magnetic encoders, and driver electronics into a compact all-in-one unit. Featuring 120N·m peak torque, 40N·m rated torque, 9:1 reduction ratio, and a lightweight 1420g design, it delivers exceptional torque density (85.71N·m/kg) and efficiency for robotics, automation, and mobility applications. With IP52 protection, a 48V rated voltage, and 14-bit encoder resolution, this module ensures precise control, smooth operation, and easy integration for advanced motion systems.

Key Features

• High Torque Output – 120N·m peak torque and 40N·m rated torque for demanding applications.

• Compact & Lightweight – Integrated driver, motor, reducer, and encoders in a 1420g housing.

• Precision Control – Dual 14-bit magnetic encoders ensure accurate position feedback.

• Wide Voltage Range – Operates from 15V to 60V with 700W ±10% rated output power.

• Durable & Reliable – IP52 protection (customizable to IP67) with Class B insulation.

• Torque Efficiency – 2.1N·m/Arms torque constant and low 0.16Ω line resistance.

• Easy Development – Full debug software, modules, and routines for rapid integration.

Mechanical Specifications

Electrical Specifications

Performance Characteristics

• T-N under 48V: Maintains ~120N·m torque up to ~100rpm, with gradual drop-off to 0N·m at 200rpm.

• Max Overload: Up to ~2500s operation time at 46N·m load before thermal limits, reducing with higher load.

Applications

Robotics – Ideal for joints in quadruped and humanoid robots, robotic arms, and AMR/AGV drive units.
Consumer Products – Suitable for e-bike power assist, scooter steering, exoskeleton joints, and service robots.
Automation Control – Perfect for automated production machinery, mobile equipment, and precision gates.

Details

RobStride 04 Actuator Module: 120N.m torque, 9:1 ratio, 1420g weight, magnetic encoder.

RobStride 04 Actuator Module: Integrated design, 1420g weight. Excellent performance with 120N·m peak torque. Easy development with complete debug software and modules. Steady, accurate, light, and compact.

RobStride 04 Actuator Module for robotics joints, arms, and drive units in AMR and AGV.

RobStride 04 Actuator Module for electric vehicles, scooters, e-bikes, exoskeletons, robots.

RobStride 04 Actuator Module for automation in production, mobile equipment, and gates.

Product performance characteristics include torque versus speed, showing stable torque up to 120 rpm. Max Overload indicates operation time drops quickly as load exceeds 50 N·m. CF refers to a specific certification or feature. This summarizes the actuator’s efficiency and load capacity under varying conditions.

RobStride 04 Actuator Module has precise dimensions: Ø106±0.1, Ø35.86±0.025, Ø36±0.1. It includes 10-M4 EQS screws, 9-M5 screw pattern, and tight tolerances for accurate assembly.