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Compact digital servo with silver aluminium case and black mounting tabs

usbroway

usbroway DS3225 30kg Digital Servo Waterproof 180°

SKU CH-W99W-0NE0W

A waterproof digital servo delivering 30 kg·cm torque at 6.8 V with 180° controllable rotation and full metal gears for RC cars, robots and aircraft

  • TypeCars
  • High torque of 30 kg·cm at 6.8 V powers demanding RC models
  • Waterproof seals and metal gears extend service life in wet conditions
  • Digital chip with precision potentiometer gives fast, stable response
  • 180° controllable rotation range enables precise joint positioning
  • CNC aluminium centre shell improves heat dissipation for sustained operation

High-torque digital servo for RC and robotics

The DS3225 delivers up to 30kg·cm of torque at 6.8V, making it suitable for climbing cars, mechanical arms, remote-control boats and aircraft. Its 180° controllable rotation range and precise linearity provide accurate joint positioning for robotics projects. The unit is built with a full metal gear train and a CNC aluminium centre case for durability.

Compatibility checks before ordering

Verify that your receiver and controller support a standard digital servo signal and can supply 6.8V for the rated torque. Confirm the mounting pattern and output spline match your chassis or arm design. Ensure the waterproof seals remain intact if the model will be exposed to moisture or splashes.

Thermals noise and power draw

The aluminium middle shell acts as a heatsink, promoting fast heat dissipation during continuous operation. High-precision potentiometers and a digital control chip keep electrical noise low and response sharp. Metal gears with hard anodising reduce mechanical whine while maintaining efficiency under load.

Highlights

  • High torque of 30 kg·cm at 6.8 V powers demanding RC models
  • Waterproof seals and metal gears extend service life in wet conditions
  • Digital chip with precision potentiometer gives fast, stable response
  • 180° controllable rotation range enables precise joint positioning
  • CNC aluminium centre shell improves heat dissipation for sustained operation

Specifications

TypeCars

Questions about this item

Does the DS3225 servo come with mounting screws and horns, or must I buy them separately?

The servo includes waterproof rubber seals and screws; standard horns are supplied in the box so no extra hardware is required for installation.

Should I choose the 6.8 V version for maximum 30 kg·cm torque or a lower voltage for longer gear life?

The DS3225 delivers its rated 30 kg·cm torque at 6.8 V; running at a lower voltage reduces torque proportionally but does not change the 180° travel or metal-gear durability.

How does the 180° controllable range behave when the servo is powered off in a robot arm?

With power off the output shaft rotates freely through 360°, allowing manual repositioning of joints, while powered operation stays within the precise 0–180° range.

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