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SunFounder SF3218MG
Robotics

SunFounder SF3218MG

Compatible Hardware

*Based on known specs.

Technical Specifications

Last Updated: 2026-07-28
Identity
Brand SunFounder
Product Number CN0193
Category Robotics
Performance
Torque
7.2V 317.00 oz-in
4.8V 285.00 oz-in
Speed
7.2V 0.14 sec/60°
4.8V 0.18 sec/60°
Running Current (add)
Stall Current 2.1–2.7 A
Rated Output Power (add)
Radial Load (add)
Physical
Weight 1.98 oz
Shape Boxed
Dimensions L 1.58 in
W 0.79 in
H 1.60 in
Case Material Aluminum
Drivetrain
Motor Type Brushed
Motor Drive (add)
Gears Metal
Gear Ratio (add)
Gear Spline/Teeth 25 T
Shaft Size (add)
Rotation Mode (add)
Rotation/Support Dual Bearings
Backlash (add)
Control & Signal
Modulation Digital
Direction Counterclockwise
Rotational Range 270°
Mechanical Limit (add)
Pulse Cycle (add)
Pulse Width 500-2500 µs
Neutral Position 1500 µs
Dead Band (add)
Refresh Rate (add)
Angle Sensor Potentiometer
Control System PWM
Programmable Yes
Resolution (add)
MCU (add)
Operating Modes (add)
Signal Voltage (add)
Electrical & Environment
Operating Voltage 4.8–7.2 V
Power Source (add)
Regulator Type (add)
Temperature -25–70 °C
Water Rating None
Certification (add)
Idle Current (add)
Connectivity
Connector JR (Universal) estimate
Wire Length 320 mm
Baud Rate (add)
Origin
Country of Origin (add)

Disclaimer: Most data is sourced from the manufacturer. Some data is sourced from our loyal community and with the help of AI. We aim for accuracy but are not responsible for inaccurate information.

Performance Analysis

Shaft Power 2.93–4.19 W
Torque Density5.0893 oz-in/g
Stronger than 78% of the 832 Digital Standard servos in the database
Torque-to-Volume Ratio142.71 oz-in/in³
Denser torque than 63% of the 843 Digital Standard servos in the database
Power Density2.096 W/in³
More power-dense than 47% of the 1644 Digital Standard servos in the database
Speed-to-Weight0.09921 (1/sec·g)
Faster than 32% of the 821 Digital Standard servos in the database
Speed-Torque Trade-off51.31
Better balanced than 78% of the 826 Digital Standard servos in the database
Current-per-Torque Ratio0.0095 A/oz-in
More efficient than 82% of the 231 Digital Standard servos in the database
Torque Gain per Volt4.68%/V
More voltage-responsive (torque) than 3% of the 673 Digital Standard servos in the database
Speed Gain per Volt11.91%/V
More voltage-responsive (speed) than 31% of the 687 Digital Standard servos in the database
Voltage Range Width2.4 V
Wider voltage range than 48% of the 1269 Digital Standard servos in the database

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