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DS3218 20KG High-Torque Waterproof Digital Servo Motor (180-Degree)

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What truly sets the DS3218 apart from standard high-torque motors is its ruggedized outer casing. It features a CNC-machined aluminum middle shell that acts as a highly efficient heat sink, keeping the internal DC motor cool during intense, continuous operation. Furthermore, it is sealed with water-resistant rubber gaskets (IP66 rated), making it completely splash-proof and safe to use in damp, outdoor environments. Boasting an incredible stall torque of up to 21.5 kg-cm at 6.8 Volts and a precise 180-degree rotational sweep, it is the ultimate actuator for demanding DIY mechanics.

Key Features & Functional Advantages

  • Massive Torque Output: Delivers a remarkable stall torque of up to 21.5 kg-cm, providing the raw physical power needed to lift heavy mechanical loads or steer large RC vehicles.

  • Water-Resistant Design: Features an IP66-rated enclosure with internal rubber seals, protecting the sensitive control board and potentiometer from splashes, rain, and mud.

  • CNC Aluminum Heat Sink: The middle section of the servo body is machined from solid aluminum, rapidly dissipating heat to prevent thermal throttling during heavy continuous use.

  • Full Metal Gearbox: Equipped with high-precision copper and aluminum gears and supported by dual ball bearings, ensuring flawlessly smooth rotation and extreme resistance to impact shocks.

  • Digital Precision: Unlike older analog servos, the digital control board provides significantly faster response times, highly accurate positioning, and phenomenal holding power without excessive jitter.

Perfect For

  • Heavy RC Vehicles: The absolute go-to steering servo for 1/10th and 1/8th scale RC rock crawlers, off-road buggies, and large RC boats that operate in wet conditions.

  • Large Robotic Arms: Providing the unwavering lifting force required for the base and shoulder joints of heavy, 3D-printed or metal-framed robotic manipulators.

  • Outdoor IoT & Automation: Actuating heavy greenhouse vents, automated chicken coop doors, or motorized rain-catchment valves where exposure to the elements is unavoidable.

  • Camera Pan/Tilt Systems: Supplying smooth, stable, and incredibly strong rotational support for heavy outdoor security cameras or solar panel tracking arrays.

Technical Specifications

  • Motor Model: DS3218 (180-Degree Digital Servo)

  • Operating Voltage: 4.8 Volts to 6.8 Volts DC

  • Stall Torque (5.0V): 19.0 kg-cm (263.8 oz-in)

  • Stall Torque (6.8V): 21.5 kg-cm (298.5 oz-in)

  • Operating Speed (5.0V): 0.16 sec / 60 degrees (No load)

  • Operating Speed (6.8V): 0.14 sec / 60 degrees (No load)

  • Gear Material: Copper & Aluminum

  • Bearing Type: Dual Ball Bearing

  • Control System: PWM (Pulse Width Modulation)

  • Dead Band Width: 3 microseconds

  • Weight: 60 grams

  • Dimensions: 40.0mm x 20.0mm x 40.5mm

Ensure your order is placed by 2PM to guarantee next-day delivery! Our commitment to prompt service includes a 24-hour delivery system through our network of carriers, aimed at ensuring your package arrives right on schedule.

Please note, a delivery fee of €4.99 applies for orders under €50. For those in remote areas, be aware that our couriers may apply an extra surcharge. This additional fee helps cover the costs of transporting your items to harder-to-reach locations.