Skip to product information
1 of 6

SteadyWin GIM8108-9 Robot Motor Planetary Reducer, 9:1 Gear, 221 W, CAN/485, 14-bit Encoder, IP54

SteadyWin GIM8108-9 Robot Motor Planetary Reducer, 9:1 Gear, 221 W, CAN/485, 14-bit Encoder, IP54

SteadyWin

Regular price $132.00 USD
Regular price Sale price $132.00 USD
Sale Sold out
Taxes included. Shipping calculated at checkout.
Version
Drive Selection
Encoder
View full details

Overview

The SteadyWin GIM8108-9 Planetary Reducer Robot Motor is a compact, high-torque joint actuator designed for precision motion control in advanced robotics and automation. Integrating a 9:1 planetary gearbox, brushless motor, encoder, and driver interface in a low-profile 96 mm housing, it delivers up to 221 W power, low backlash, and stable output for demanding robotic joints and mobile platforms.

Key Features

  • Planetary reducer robot motor with 9:1 gear ratio, steel gears, and approximately 15 arcmin backlash for accurate, repeatable positioning.
  • High power density with 192 W (SDC103) or 221 W (SDC303) output and nominal torque up to 8.78 N m, suited to compact robotic joints.
  • Wide electrical operating range – supports a supply range of 12-48 V and an output speed range of approximately 159-245 rpm, depending on the driver configuration and operating point.
  • Stable torque characteristics – torque constant from 0.96 to 1.83 N m/A and stall torque up to 27.38 N m for reliable performance under varying load conditions.
  • Integrated sensing – 14-bit encoder resolution with second encoder support indicated, enabling precise joint position and speed control; separate external encoder is not supported.
  • Robust mechanical design – steel planetary gear train, maximum axial load of 225 N and radial load of 900 N in a compact diameter 96 mm package.
  • Low noise and environmental protection – operating noise <60 dB and IP54 protection grade for use in typical indoor and light industrial environments.
  • Versatile communication interfaces – CAN and 485 communication on the SDC103 driver option, and CAN on the SDC303 option for easy integration into robotic control networks.
  • Safety and reliability – designed with over-temperature and over-voltage protection features and a wide operating temperature range from -20°C to +80°C.
  • Compact, integration-ready form factor – only 34 mm long without driver or 41.5 mm with driver, enabling dense multi-joint layouts in humanoid, quadruped, and arm robots.
  • Custom brake support – supports the addition of a customized brake where required by the application.

For selection, integration, or after-sales support of this robot motor, please contact customer service at support@rcdrone.top or visit https://rcdrone.top/.

Application Scenarios

  • Humanoid robot joints (shoulder, elbow, hip, knee, etc.)
  • Robotic arms and collaborative manipulators
  • Exoskeleton actuators
  • Quadruped and mechanical dog joints
  • AGV and other mobile robot drive modules
  • ARU and general-purpose robotic platforms requiring compact, high-torque actuators

Technical Specifications

Parameter SDC103 driver version SDC303 driver version
Model GIM8108-9 GIM8108-9
Driver model SDC103 SDC303
Nominal voltage 48 V (24-48 V range) 24 V (15-48 V range)
Power 192 W 221 W
Nominal torque 8.19 N m 8.78 N m
Stall torque 27.38 N m 25.73 N m
Nominal speed after reduction 207 rpm 195 rpm
Max speed after reduction 242 rpm 227 rpm
Nominal current 4 A 9.2 A
Stall current 19.8 A 34.1 A
Phase resistance 0.73 ohm 0.22 ohm
Phase inductance 0.49 mH 0.21 mH
Speed constant 5.04 rpm/V 9.46 rpm/V
Torque constant 1.83 N m/A 0.96 N m/A
Number of pole pairs 21 pairs 21 pairs
Gear ratio 9:1 9:1
Gear type Planetary Planetary
Reducer gear material Steel Steel
Reducer gear backlash 15 arcmin 15 arcmin
Motor weight (without driver) 525 g 525 g
Motor weight (with driver) 567 g 567 g
Size (without driver) Diameter 96 mm x 34 mm Diameter 96 mm x 34 mm
Size (with driver) Diameter 96 mm x 41.5 mm Diameter 96 mm x 41.5 mm
Max axial load 225 N 225 N
Max radial load 900 N 900 N
Noise <60 dB <60 dB
Communication CAN and 485 CAN
Second encoder Yes Yes
Protection grade IP54 IP54
Operating temperature -20°C to +80°C -20°C to +80°C
Encoder resolution 14 bit 14 bit
Separate encoder support No No
Custom brake support Yes Yes

Manuals and Downloads

Details

SteadyWin GIM8108-9 planetary reducer robot motor, front perspectiveSteadyWin GIM8108-9 planetary reducer robot motor, top view