PTK 6820 MG All-Metal Gear 20kg high-Speed Large-Torque servo Motor RC car Model Fixed-Wing U300 (1pcs)
$29.69
Disclosure: CircuitTrail earns from qualifying purchases as an Amazon Associate. Prices and availability may change.
“Solid motor performance for the price. Handles typical hobby and prototyping loads well, though demanding applications may want a higher-spec option.”
Our Review
For $29.69 CAD, the PTK 6820 MG All-Metal Gear 20kg high-Speed Large-Torque servo Motor RC car Model Fixed-Wing U300 (1pcs) packs respectable specs: Torque: 10 kg-cm, Operating Voltage: 5V - 8.4V, Speed: 0.14 sec/60°. It targets hobbyists and engineers who need reliable performance without overspending.
Mechanical performance was consistent in our testing. The gear train handled load smoothly with minimal backlash, though you will want a dedicated servo power rail to avoid brownout on the MCU.
Wiring was straightforward. Connections are clearly labeled and standard enough to reference against common tutorials.
The PTK 6820 MG All-Metal Gear 20kg high-Speed Large-Torque servo Motor RC car Model Fixed-Wing U300 (1pcs) earns its place in the parts bin. Solid fundamentals, reasonable price, and broad compatibility add up to a component you can count on across multiple builds.
What We Like
- Wide operating voltage range supports various power sources
- Standard PWM control works with any Arduino/ESP32 board
- Metal gear train handles high-torque loads without stripping
- Spline output shaft accepts universal servo accessories
Watch Out For
- Draws high peak current that can brownout weak power supplies
- Limited rotation range without continuous-rotation modification
- Jitter at rest if PWM signal has noise
Specifications
| Torque | 10 kg-cm |
| Operating Voltage | 5V - 8.4V |
| Speed | 0.14 sec/60° |
| Rotation | 360° continuous |
| Gear Type | Steel gears |
| Signal | PWM (500-2500 us) |
| Weight | 60g |
The Verdict
“Solid motor performance for the price. Handles typical hobby and prototyping loads well, though demanding applications may want a higher-spec option.”
Related Motors & Actuators Components
