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Magnetic Encoding Servo STS3250 12V 50KG

The STS3250 is a 12V 50kg serial bus smart servo featuring an aluminum alloy case, coreless motor, metal gearbox, and Feetech's self-researched TTL control board with 12-bit high precision magnetic coding sensor. With a stall torque of 50kg.cm, it can achieve 0-360 degree controllable positioning and multi-turn continuous operation mode.

Key Features

  • One-key middle point setting
  • Acceleration slow start and slow stop
  • Real-time feedback: Position, speed, voltage, current, temperature, load parameters
  • Protection: Overload and over-current protection
  • Applications: Industrial equipment, robotics, and small torque drive scenarios

Technical Specifications

Specification Value
Model ST-3250-C001
Operating Voltage Range 6-12V
Peak Stall Torque 50kg.cm @ 12V
Rated Torque 16kg.cm @ 12V
No Load Speed 0.133sec/60° @ 12V
Running Current (No Load) 280mA @ 12V
Stall Current 4.2A @ 12V


Physical Properties

Specification Value
Dimensions 45.22mm × 24.72mm × 35mm
Weight 74.5± 1g
Case Material Aluminum alloy
Motor Type Coreless Motor
Gear Type Steel gear
Bearings Ball bearings
Horn Gear Spline 25T/OD5.9mm


Communication & Control

Specification Value
Command Signal Digital Packet
Protocol Type Half Duplex Asynchronous Serial Communication
ID Range 0-253
Communication Speed 38.4Kbps ~ 1Mbps
Running Degree 360° (0~4096)
Neutral Position 180° (2048)
Connector Wire 15cm


Environmental Specifications

Specification Value
Operating Temperature -20℃ ~ 60℃
Storage Temperature -30℃ ~ 80℃
Limit Angle No limit
Rocker Phantom


Feedback Parameters

  • Load monitoring
  • Position feedback
  • Speed monitoring
  • Input voltage detection
  • Temperature sensing

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