SF3218MG Metal Gear Digital Servo with 20KG High Torque

SunFounderSKU: CN0193

In stock

Free Shipping

Payment & Security


Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.


SunFounder SF3218MG Digital Servo can be common use in robots, mechanical arms, climbing cars, and remote control toys. 270-degree rotation perfect for robot support waterproof(it would be okay if your device just goes through the water pavement, but it can't be soaked in water).

Related datasheet can be found in http://wiki.sunfounder.cc/index.php?title=TM-8120MG_Digital_Servo


  • 270 Degrees Rotation-  This servo supports controllable angle range from 0 to 270 degrees, a maximum torque of 20.5kg·cm and a speed of 0.18sec/60°
  • Aluminium Case for Good Heat Dissipation- It is make of CNC aluminium alloy case, which can enhance the heat dissipation funtion, you don't need to worry about the cooling problem when it is working.
  • Being characterized by excellent power performance, the SUNFOUNDER SF3218MG 20kg Servo uses dual ball bearings design and advanced potentiometer to make sure the high linearity and accuracy for cars and robots.
  • The whole servo weights about 60g, and it is coming with a 25T Adjustable metal servo arm to meet different needs.


  • Stall Torque:20.5kg·cm (284.7oz·in) -22.8kg·cm (316.63oz·in)
  • No load speed:0.18sec/60°-0.14sec/60°
  • Operating Voltage:4.8V~7.2V
  • Dead band width:5μs
  • Weight:56g±5%
  • Motor Type:Carbon brush motor
  • Gear Type:5 Metal
  • Size:40.0*20.5*40.5 mm(1.58 * 0.79 * 1.60 in)

Package List

  • 1 x 20KG SF3218MG Digital Servo
  • 1 x 25T Adjustable metal servo arm