Feetech SM-105B-C001 Smart RS485 Servo – 12V 150 kg·cm Industrial Brushless Actuator

The Feetech SM-105B-C001 is a 12-volt industrial smart bus servo actuator engineered for RS485-based motion-control systems requiring high torque, closed-loop feedback, and efficient operation on lower-voltage power architectures. Delivering up to 150 kg·cm of stall torque, this servo is ideal for robotics, automation equipment, research platforms, and mobile systems where 12 V operation is preferred.

Using RS485 serial communication, the SM-105B-C001 enables addressable, multi-servo networking with real-time telemetry feedback. A 12-bit high-precision magnetic encoder ensures accurate position control, supporting 0–360° programmable angle control as well as multi-turn continuous-rotation modes.

Feetech’s self-developed RS485 control board provides advanced motion features such as one-key centre calibration, programmable acceleration and deceleration, soft start/stop, and comprehensive monitoring of position, speed, voltage, current, temperature, and load. Built-in protection mechanisms allow over-current and overload protection, improving operational safety and long-term reliability.

With a brushless motor, steel gearbox, and all-aluminium housing, the SM-105B-C001 is well suited for robot joints, AGVs/AMRs, humanoid robotics, laboratory automation, and custom industrial mechanisms, particularly where 12 V power systems are used.

Standard MOQ: 7 units

Accepted minimum order: 5 units

Orders below 5 units cannot be processed.

This MOQ structure supports professional supply, system integration assistance, and manufacturer-backed after-sales support.

Key Features

RS485 serial bus communication (networked, addressable)

12 V operation for lower-voltage systems

Up to 150 kg·cm stall torque

Brushless motor for efficiency and long service life

Steel gearbox for high load resistance

All-aluminium alloy housing

0–360° programmable angle control

Multi-turn continuous-rotation support

12-bit magnetic position encoder

Real-time feedback: position, speed, voltage, current, temperature, load

Over-current & overload protection

Soft start / soft stop motion control

Technical Specifications

Operating Voltage: 12 V

Control Interface: RS485 serial bus

Stall Torque: 150 kg·cm @ 12 V

Rotation Range: 0–360° programmable

Operation Mode: Multi-turn continuous rotation supported

Motor Type: Brushless

Gearbox: Steel

Position Sensor: 12-bit magnetic encoder

Housing Material: Aluminium alloy

Warranty, Support & Trust Layer

This servo is supplied as a genuine Feetech industrial smart actuator and is covered by the manufacturer’s warranty. We provide pre-sale technical guidance, RS485 integration support, and after-sales assistance, making it suitable for bulk procurement and long-term deployment.

Replacement parts, accessories, and technical documentation are available to support maintenance and system scalability

Compare with other models in our RS485 Smart Bus Servo Comparison Table

Part of the Smart Bus Servos (RS485 / Serial Control) range

Also listed under Digital Servos, High-Torque Servos, and Feetech / Fitec Servos