WitMotion 20KG CM IP65 Waterproof 270 Digital Metal Gear Servo for 1/8 1/10 RC Cars & Robot Arms
WitMotion 20KG CM IP65 Waterproof 270 Digital Metal Gear Servo for 1/8 1/10 RC Cars & Robot Arms
WitMotion
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Overview
This 20KG high-torque digital servo is designed for RC steering and robotic joints, featuring 270 rotation, IP65 protection, and an all-metal gear train with metal output shaft. It is positioned for 1/8 and 1/10 scale RC cars and robot arm projects that require strong torque and stable control.
Key Features
- 20KG CM class high-torque digital (non-analog) servo with 270 rotation
- IP65 protection
- High-precision digital design with MCU control
- All-metal internal gears and metal output shaft
- Double ball bearings for smoother operation
- Oxidized metal middle frame for improved heat dissipation
- High-precision potentiometer for improved accuracy/linearity and stable operation
- Coreless motor core (low rotor inductance, fast response, high efficiency, compact size)
- 3-wire lead with Signal / Positive pole / Negative pole
Specifications
Two 20kg 270 versions are listed in the provided manufacturer materials.
| Parameter | 20kg 270 Servo | 20kg 270 Upgraded Servo |
|---|---|---|
| Model | 20kg 270 Servo | 20kg 270 Upgraded Servo |
| Weight | 54 g | 65 g |
| Dimensions | 40*20*40 | 40*20.5*40.8mm |
| Operating Voltage | 5~8.4V | 4.8~8.4V |
| Stall Current | 1000~2300mA | 2100~2700mA |
| No-Load Current | 300~800mA | 210~260mA |
| Speed/60 | 0.29~0.16 | 0.17~0.12 |
| Stall Torque | 18~30KG | 20~23kg |
| Rotation Range | 270 | |
| Protection Rating | IP65 | |
| Cable Length | 29 cm | |
Dimensions (Drawing Callouts)
- 40, 20, 40.8, 20.5, 28, 32, 12.8, 8
- 54.4, 48, 18.5, 10
- 4-phi4.3, 4-2.6
- M3 5mm
- 0.8, 13.8, 4.5, 2, 1
- Note: The actual product size may vary by +/-0.2mm from the diagram.
What's Included
- 20KG Servo (270 Single Axis)
- Plastic accessory kit (servo horns and screws)
Shopify options indicate pack selections: 1 pcs 20kg servo or 4 pcs 20kg servo.
Applications
- Steering structures (e.g., Ackermann steering vehicles, model cars)
- Robot arms and large-angle joint mechanisms
- Free-degree joint rotation structures (e.g., servo gimbals)
- Remote control boats
Documents
- Free course document included: Tutorials, Quick Guide, Sample Code, 3D Drawings
For pre-sales compatibility questions (servo voltage range, torque needs, pack selection) or after-sales support, contact support@rcdrone.top or visit https://rcdrone.top/.
Details
Choose between the standard and upgraded 20kg 270° servo versions by comparing weight, voltage range, current draw, speed, and stall torque.
High-torque digital control with a metal gear train and IP65 protection for RC steering and robotic joints.
Balanced torque and fast response help keep steering and joint motion stable under load.
An oxidized metal middle frame supports heat dissipation, while double ball bearings and metal gears improve durability.
A high-precision potentiometer and coreless motor design support smooth 270° travel and responsive control.
Use the dimensioned drawing to confirm fitment and mounting hole alignment before installation.
Standard 3-wire lead (signal/positive/negative) with a 29 cm cable length simplifies integration into RC and robotics builds.
Common applications include Ackermann-style steering linkages and large-angle joint mechanisms.
Ideal for robot arms and bionic robotics where wider joint rotation helps expand motion range.
A free course document bundle includes tutorials, a quick guide, sample code, and 3D drawings.
Each pack includes the 20kg 270° single-axis servo plus a plastic accessory kit with horns and screws.
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