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Technical Specifications
Last Updated: 2026-07-10Identity
Performance
Physical
Drivetrain
Control & Signal
Electrical & Environment
Connectivity
Origin
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| Identity | |
| Brand |  |
| Product Number | CYS-S2220 |
| Category | Hobby |
| Performance | |
| Torque |
7.4V
277.75 oz-in
20.00 kg-cm
2.0 N-m
6.0V
249.97 oz-in
18.00 kg-cm
1.8 N-m
|
| Speed |
7.4V
0.13 sec/60°
461.5 deg/s
76.9 RPM
6.0V
0.14 sec/60°
428.6 deg/s
71.4 RPM
|
| Running Current | (add) |
| Stall Current | 2.5–2.8 A2500–2800 mA |
| Physical | |
| Weight | 2.26 oz64.0 g |
| Dimensions |
L 1.58 in W 0.79 in H 1.53 in L 40.1 mm W 20.1 mm H 38.8 mm |
| Case Material | (add) |
| Drivetrain | |
| Motor Type | Coreless |
| Motor Drive | (add) |
| Gears | Titanium |
| Gear Spline/Teeth | 25 T |
| Shaft Size | (add) |
| Rotation Mode | (add) |
| Rotation/Support | (add) |
| Backlash | (add) |
| Control & Signal | |
| Modulation | Digital |
| Direction | Counterclockwise |
| Rotational Range | 90° |
| Mechanical Limit | (add) |
| Pulse Cycle | 50 ms |
| Pulse Width | 1000-2000 µs |
| Neutral Position | 1500 µs |
| Dead Band | 2 µs |
| Refresh Rate | (add) |
| Angle Sensor | (add) |
| Control System | PWM |
| Programmable | No |
| Signal Voltage | (add) |
| Electrical & Environment | |
| Operating Voltage | 6–7.4 V |
| Power Source | (add) |
| Regulator Type | (add) |
| Temperature | -10–50 °C14–122 °F |
| Water Rating | IP65 |
| Certification | (add) |
| Idle Current | (add) |
| 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.
Performance Analysis
| Shaft Power | 3.30–3.95 W |
| Torque Density | 3.9058 oz-in/g Stronger than 60% of the 831 Digital Standard servos in the database |
| Torque-to-Volume Ratio | 130.98 oz-in/in³ Denser torque than 58% of the 842 Digital Standard servos in the database |
| Power Density | 2.070 W/in³ More power-dense than 46% of the 1643 Digital Standard servos in the database |
| Speed-to-Weight | 0.11161 (1/sec·g) Faster than 45% of the 820 Digital Standard servos in the database |
| Speed-Torque Trade-off | 34.99 Better balanced than 60% of the 825 Digital Standard servos in the database |
| Current-per-Torque Ratio | 0.0112 A/oz-in More efficient than 71% of the 230 Digital Standard servos in the database |
| Torque Gain per Volt | 7.94%/V More voltage-responsive (torque) than 12% of the 672 Digital Standard servos in the database |
| Speed Gain per Volt | 5.48%/V More voltage-responsive (speed) than 3% of the 686 Digital Standard servos in the database |
| Voltage Range Width | 1.4 V Wider voltage range than 35% of the 1268 Digital Standard servos in the database |
| Dead-Band-to-Pulse-Width Ratio | 0.0020 Finer dead band than 34% of the 326 Digital Standard servos in the database |
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Reviews (2)
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Authentic RC - Jeff McGraw
October 18, 2016Application(s): Axail Wraith Steering servo front for crawler. mounted with 2 or 3 inch arm and used to dump the bed of a Tonka truck.
Comments: I have used and abused this servo over the years off and on and I was never in a situation where I needed more. I will mention that most need a BEC to run without brownouts. VERY WELL MADE AND AM TESTING THIS THROUGH ASIATEES.COM DISCOUNTED ITEM BUT WILL PURCHASE AGAIN ANY DAY, I JUST HAVEN'T NEEDED TO. thanks CYS
Joe Conti
September 11, 2016Application(s): 1 as an RC crawler steering servo 1 as an RC car servo winch
Comments: I find them very affordable and attractive when I read they have titanium gears - however, sadly, only yesterday one of them lost it's gearing :( Steering servo only working to one side. Will not return to center from one side!! Very unexpected!!