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Home / All / Robot Joint Motor / Neck Joint Motor / MG3505-8 Neck Joint Actuator - 0.67 Nm Rated, 8:1
MG3505-8 Neck Joint Actuator - 0.67 Nm Rated, 8:1
Detail Information
MG 3505-8 Integrated Robot Joint Motor
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.
Ø43 × 28.8 mm Ultra-Compact
0.67 N·m Rated /1.79 N·m Peak Torque
8:1 Precision Planetary Gearbox
IP54 Protection Rating
14-Bit High-Resolution Encoder
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Engineered for Precision Motion
Feature – Integrated All-in-One Design
The MG 3505-8 integrates a BLDC servo motor,8:1 planetary gearbox, drive electronics, and dual encoders in a single Ø43 × 28.8 mm housing. This eliminates the need for separate component sourcing, wiring, and tuning.
Advantage – Reduced System Complexity
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.
Benefit – Faster Time to Market
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.
Feature – High Torque Density
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.
Advantage – Superior Dynamic Performance
High torque-to-weight ratio enables faster acceleration, smoother motion, and greater load capacity — critical for responsive robot joint movement.
Benefit – Handles Demanding Applications
Suitable for humanoid robots, collaborative robots, and exoskeletons where high torque and compact size are essential for natural, powerful motion.
Feature – Dual Encoder Feedback & IP54 Protection
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.
Advantage – Precision & Reliability
Dual-loop feedback ensures accurate position, speed, and torque control. IP54 enables deployment in harsh industrial environments without performance degradation.
Benefit – Long-Term Operational Stability
Reliable feedback and environmental protection reduce maintenance needs and ensure consistent performance over extended operating periods.
Technical Specifications
ParameterValue
ModelMG 3505-8
Winding MethodY (Star)
Voltage Range12 ~ 40 VDC
Rated Torque0.67 N·m
Peak Torque1.79 N·m
Gear Ratio8:1 (Planetary)
Encoder Resolution14-Bit
CommunicationCAN Bus / RS485
Protection RatingIP54
Weight (with driver)~97 g
Dimension (with driver)Ø43 × 28.8 mm
Noise< 60 dB
Working Temperature-20 ~ +80 °C
Dual Encoder SupportYes (Output Shaft)
Custom Brake SupportYes
Key Applications
Humanoid Robots
Joint actuation for bipedal and full-body humanoid platforms
Collaborative Robots
Safe, precise motion for cobot arms and grippers
Exoskeletons
Power assist and rehabilitation exoskeleton systems
Education & Research
Robotics labs, university projects, and prototyping
Medical Assistants
Surgical robots and rehabilitation equipment
Smart Automation
Automated guided vehicles and smart manufacturing
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