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Technical Specifications
Last Updated: 2026-09-19
Weight
Dimensions
Torque
Speed
Current
Temp
Wire
| Identity | |
| Brand |  |
| Product Number | XQ-S3218M |
| Category | Hobby |
| Performance | |
| Torque |
6.0V
298.50 oz-in
21.49 kg-cm
2.1 N-m
5.0V
249.90 oz-in
17.99 kg-cm
1.8 N-m
Average
|
| Speed |
6.0V
0.14 sec/60°
428.6 deg/s
71.4 RPM
5.0V
0.16 sec/60°
375.0 deg/s
62.5 RPM
Below Average
|
| Running Current |
6.0V
0.210 A
210 mA
5.0V
0.180 A
180 mA
Average
|
| Stall Current | 2.6–3 A2600–3000 mAAverage |
| Physical | |
| Weight | 1.98 oz56.0 gAbove Average |
| Dimensions |
L 1.57 in W 0.79 in H 1.59 in L 39.9 mm W 20.1 mm H 40.4 mm |
| Case Material | Aluminum / Plastic |
| Drivetrain | |
| Motor Type | Brushed |
| Motor Drive | PWM |
| Gears | Copper / Aluminum |
| Gear Spline/Teeth | 25 T |
| Rotation Mode | Positional |
| Rotation/Support | Dual Bearings |
| Control & Signal | |
| Modulation | Digital |
| Direction | Counterclockwise |
| Rotational Range | 180° |
| Mechanical Limit | 180° |
| Pulse Width | 500-2500 µs |
| Neutral Position | 1500 µs |
| Dead Band | 3 µs |
| Angle Sensor | Potentiometer |
| Control System | PWM |
| Electrical & Environment | |
| Operating Voltage | 5–7.2 V |
| Temperature | -25–70 °C-13–158 °F |
| Water Rating | IP66 |
| Certification | CE |
| Connectivity | |
| Connector | JR (Universal) |
| Wire Length | 300 mm11.81 in |
| Origin | |
| Country of Origin | China |
Disclaimer: Most data is sourced from the manufacturer. Some data is sourced from our loyal community and with the help of AI. We aim for accuracy but are not responsible for inaccurate information.
Class Comparison
| Torque | Average Stronger than 57% of 1055 Digital Standard servos at 5.0V |
| Speed | Below Average Faster than 33% of 1038 Digital Standard servos at 5.0V |
| Weight | Above Average Lighter than 72% of 1872 Digital Standard servos |
| Running Current | Average Lower draw than 56% of 226 Digital Standard servos at 5.0V |
| Stall Current | Average Lower draw than 58% of 569 Digital Standard servos |
Performance Analysis
| Shaft Power | 2.89–3.94 W |
| Power Density | 1.999 W/in³ More power-dense than 44% of 1762 Digital Standard servos |
| Torque Density | 4.4625 oz-in/g Stronger than 70% of 1048 Digital Standard servos |
| Torque-to-Volume Ratio | 126.72 oz-in/in³ Denser torque than 56% of 1053 Digital Standard servos |
| Speed-to-Weight | 0.11161 (1/sec·g) Faster than 48% of 1031 Digital Standard servos |
| Speed-Torque Trade-off | 39.98 Better balanced than 64% of 1029 Digital Standard servos |
| Current-per-Torque Ratio | 0.0120 A/oz-in More efficient than 65% of 330 Digital Standard servos |
| No-Load vs Stall Current Spread | 16.67 Narrower current spread than 54% of 179 Digital Standard servos |
| Voltage Range Width | 2.2 V Wider voltage range than 42% of 1552 Digital Standard servos |
| Dead-Band-to-Pulse-Width Ratio | 0.0015 Finer dead band than 53% of 501 Digital Standard servos |
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