• FEETECH HL-3935 Servo Motor, 12V 35kg.cm Double Shaft Serial Bus, Coreless, 0–360° PID Control, 1 Mbps, Aluminium
  • FEETECH HL-3935 Servo Motor, 12V 35kg.cm Double Shaft Serial Bus, Coreless, 0–360° PID Control, 1 Mbps, Aluminium
  • FEETECH HL-3935 Servo, FEETECH HL-3935: 12V coreless servo, 35kg.cm torque, double shaft, 0–360°, PID control, 1 Mbps serial bus, aluminum housing.
  • FEETECH HL-3935 Servo, FEETECH HL-3935: 12V, 35kg.cm, coreless double-shaft servo with 0–360° PID control, serial bus, 1 Mbps, aluminum housing.
  • FEETECH HL-3935 Servo, FEETECH HL-3935: 12V, 35kg.cm, coreless, dual-shaft servo with 0–360° PID control, 1 Mbps serial bus, aluminum housing, includes mounting hardware.
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FEETECH HL-3935 Servo Motor, 12V 35kg.cm Double Shaft Serial Bus, Coreless, 0–360° PID Control, 1 Mbps, Aluminium

FEETECH HL-3935 Servo Motor, 12V 35kg.cm Double Shaft Serial Bus, Coreless, 0–360° PID Control, 1 Mbps, Aluminium

Feetech

$117.00 USD
$117.00 USD
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Overview

The FEETECH HL-3935 Servo Motor is a 12V, double-shaft serial bus servo designed for robotics and automation. It delivers up to 35kg.cm peak stall torque at 12V, features a coreless motor with a 1/378 gear ratio, and supports absolute position control from 0–360°. With PID control, rich telemetry feedback, and half‑duplex asynchronous serial communication up to 1 Mbps, this servo motor suits humanoid and quadruped robots, robotic arms, exoskeletons, and AGV platforms.

Key Features

  • Model: HL-3935-C001; product name: 12V 35kg Double Shaft Constant Force Serial Bus Servo
  • Coreless motor, steel gears, ball bearings, aluminium case
  • Rated input voltage: 9V–12.6V; no‑load speed: 0.117sec/60° (85RPM) @12V
  • Peak stall torque: 35kg.cm @12V; stall current: 3.1A @12V
  • PID control with digital packet command; ID range 0–253; 38400bps ~ 1 Mbps
  • Operating modes: angle servo (0–360°), motor constant speed, motor constant current
  • Multi‑loop mode: ±7 turns control (highest accuracy; turns not saved on power loss)
  • Constant force output: set and maintain target torque (address 44)
  • Feedback: Load, Position, Speed, Input Voltage，Current, Temperature
  • Resolution: 0.088° (360°/4096); neutral position: 180°（2048）; clockwise (0→4096）

Application Scenarios

  • Humanoid Robots
  • Robotic Arms
  • Exoskeletons
  • Quadruped Robots
  • AGV Vehicles
  • ARU Robots

Specifications

Parameter Value
Model HL-3935-C001
Product Name 12V 35kg Double Shaft Constant Force Serial Bus Servo
Storage Temperature Range -30℃～80℃
Operating Temperature Range -20℃～60℃
Temperature Range 25℃ ±5℃
Humidity Range 65%±10%
Size A：40mm B：20mm C：40mm
Weight 85± 1g
Gear type steel
Limit angle NO limit
Bearing Ball bearings
Horn gear spline 25T/OD5.9mm
Gear Ratio 1/378
Case Aluminium
Connector wire 15CM
Motor Coreless Motor
Rated Input Voltage 9V-12.6V
No load speed 0.117sec/60°(85RPM)@12V
Runnig current(at no load) 200mA@12V
Peak stall torque 35kg.cm@12V
Stall current 3.1A@12V
Rated Load 8.5kg. cm@12V
Rated current 800mA@12V
KT 11.5kg. cm/A
Terminal resistance 1.75 Ω
Operating Modes Mode 0: Angle servo mode (default mode, absolute position controllable from 0-360 degrees);
Mode 1: Motor constant speed mode (motor constant speed mode, maintains speed without deceleration as the load increases);
Mode 2: Motor constant current mode (motor constant current mode,maintains current without decreasing with increasing load) can achieve absolute position
Multi-Loop Mode control of positive and negative 7 turns at the highest accuracy, but the number of power failure turns is not saved (the resolution can be expanded, and the number of turns can be doubled)
Constant force output Set the output torque value, the servo can maintain this torque (input the target torque value corresponding to address 44, the servo can maintain this torque)
Command signal Digital Packet
Protocol Type Half Duplex Asynchronous Serial Communication
ID range 0-253
Communication Speed 38400bps ~ 1 Mbps
Control Algorithm PID
Neutral Position 180°（2048）
Running degree 360° (when 0~4096)
Resolution [deg/pulse] 0.088°(360°/4096)
Rotating Direction Clockwise(0→4096）
Feedback Load, Position,Speed, Input Voltage，Current,Temperature

Manuals

Details

FEETECH HL-3935 Servo, FEETECH HL-3935: 12V coreless servo, 35kg.cm torque, double shaft, 0–360°, PID control, 1 Mbps serial bus, aluminum housing.

FEETECH HL-3935 Servo, FEETECH HL-3935: 12V, 35kg.cm, coreless double-shaft servo with 0–360° PID control, serial bus, 1 Mbps, aluminum housing.

FEETECH HL-3935 Servo, FEETECH HL-3935: 12V, 35kg.cm, coreless, dual-shaft servo with 0–360° PID control, 1 Mbps serial bus, aluminum housing, includes mounting hardware.

 

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