1.Product Overview

The ZGCJM Series represents an integrated, high-performance robotic joint module solution. It combines a high-torque-density motor, a precision gear reducer, and an absolute encoder into a compact, ready-to-install package. Based on a 40-pole Brushless DC (BLDC) motor platform and utilizing Field-Oriented Control (FOC) technology, this series delivers a wide range of rated torque outputs from 9Nm to 22Nm, with peak overload capacity up to twice the rated torque. Designed specifically for the joint axes of industrial robots, collaborative robots, and service robots, its all-in-one design dramatically simplifies mechanical integration and motion control system development, making it the ideal actuation solution for achieving high-dynamic, high-precision robotic motion.

2.Core Shared Advantages

1. High-Density 40-Pole Motor Design

• Performance: The entire series features an innovative 40-pole BLDC motor design, significantly exceeding the pole count of conventional servo motors. This delivers exceptional torque density, remarkably smooth low-speed torque output, and minimal torque ripple.
• Advantage: Enables higher torque output within the same compact form factor, resulting in smoother, more precise, and more powerful motion during robot joint startup and low-speed operation. This directly enhances overall motion quality.

2. Integrated Plug-and-Play Actuator Module

• Performance: The module fully integrates the 40-pole motor, a high-precision 9:1 planetary gear reducer, an absolute encoder, and drive electronics into a single, space-saving unit.
• Advantage: Drastically simplifies the design, assembly, and commissioning of robotic joints. Eliminates the need for separate sourcing and calibration of motors, gears, and encoders, saving over 60% integration time while reducing system complexity and potential failure points. It’s a true plug-and-play robotic actuator.

3. High Peak Torque & Dynamic Response

• Performance: All models feature a peak torque overload capability of 2x the rated value (for several seconds). Optimized electrical parameters, such as low winding resistance and inductance, ensure rapid current response.
• Advantage: Provides ample power for demanding robotic maneuvers like rapid start/stop, direction changes, and handling sudden load variations, ensuring agile and robust motion. This superior dynamic performance is fundamental for high-speed, high-acceleration robotics applications.

4. Integrated Absolute Encoder & FOC Drive

• Performance: Equipped with a built-in absolute encoder for direct joint position feedback and utilizes advanced Field-Oriented Control (FOC).
• Advantage: Enables absolute positioning upon power-up without homing, maximizing equipment uptime. FOC control delivers high efficiency, low acoustic noise, and precise torque control, resulting in smoother, more energy-efficient robotic movement. The system is ideal for robotic joint control.

5. Robust Construction & Wide Environmental Suitability

• Performance: The series is built with Class F insulation, features an IP54 protection rating (excluding interfaces), and operates within a temperature range of -20°C to 60°C.
• Advantage: Withstands common industrial challenges such as dust, light water spray, and temperature fluctuations, ensuring reliable long-term performance in diverse working environments, making it a durable robot joint motor.

3.Performance Data