MG 3505-8 Integrated Robot Joint Motor – BLDC Servo with 8:1 Planetary Gearbox
group nameNeck Joint Motor
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Min Order1 piece
brand nameSolismotor Custom Robot Joint Drives
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update timeFri, 28 Aug 2026 18:25:18 GMT
Paramtents
Model MG 3505-8
Rated Torque 0.67 N·m
Peak Torque 1.79 N·m
Gear Ratio 8:1 Planetary
Encoder 14-Bit, Dual Support
Communication CAN Bus / RS485
Protection IP54
Weight ~97 g
Dimension Ø43x 28.8 mm
Packging & Delivery
Min Order1 piece
Briefing
Detailed
The MG 3505-8 is a highly integrated, compact robot joint actuator module independently developed by Solismotor. It integrates a BLDC servo motor, high-precision planetary gearbox, drive control system, and dual encoder feedback into a single unit, providing a high-performance, high-precision, and highly reliable power solution for various robot applications. The MG 3505-8 integrates a BLDC servo motor,8:1 planetary gearbox, drive electronics, and dual encoders in a single Ø43*28.8mm housing. This eliminates the need for separate component sourcing, wiring, and tuning. By combining motor, gearbox, driver, and encoder into one module, engineers can cut development time by up to 60% and simplify overall system architecture significantly. With plug-and-play integration, R&D teams can focus on application-level development rather than motor control, accelerating robot prototyping and production ramp-up. Rated output torque of 0.67 N·m with peak stall torque reaching1.79 N·m. The8:1 planetary gearbox delivers exceptional torque density in a compact form factor. High torque-to-weight ratio enables faster acceleration, smoother motion, and greater load capacity — critical for responsive robot joint movement. Suitable for humanoid robots, collaborative robots, and exoskeletons where high torque and compact size are essential for natural, powerful motion. Built-in 14-bit high-resolution encoder with support for secondary encoder feedback on the output shaft. IP54-rated sealed housing protects against dust and water splashes. Dual-loop feedback ensures accurate position, speed, and torque control. IP54 enables deployment in harsh industrial environments without performance degradation. Reliable feedback and environmental protection reduce maintenance needs and ensure consistent performance over extended operating periods. Joint actuation for bipedal and full-body humanoid platforms Safe, precise motion for cobot arms and grippers Power assist and rehabilitation exoskeleton systems Robotics labs, university projects, and prototyping Surgical robots and rehabilitation equipment Automated guided vehicles and smart manufacturingMG 3505-8 Integrated Robot Joint Motor
Engineered for Precision Motion
Feature – Integrated All-in-One Design
Advantage – Reduced System Complexity
Benefit – Faster Time to Market
Feature – High Torque Density
Advantage – Superior Dynamic Performance
Benefit – Handles Demanding Applications
Feature – Dual Encoder Feedback & IP54 Protection
Advantage – Precision & Reliability
Benefit – Long-Term Operational Stability
Technical Specifications
Key Applications
Humanoid Robots
Collaborative Robots
Exoskeletons
Education & Research
Medical Assistants
Smart Automation
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6YRS Hong Kong SolisMotor Co., Ltd.