Power HD R30S

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*Spec is estimated from brand data.

Technical Specifications

Last Updated: 2026-10-23

Identity
Brand
Product Number	HD-R30S
Category	Hobby
Performance
Torque	8.4V 486.15 oz-in 7.4V 416.70 oz-in 6.0V 333.36 oz-in Above Average
Speed	8.4V 0.13 sec/60° 7.4V 0.15 sec/60° 6.0V 0.17 sec/60° Below Average
Running Current	7.4V 0.600 A 6.0V 0.500 A Below Average
Stall Current	1.9–2.3 AAbove Average
Physical
Weight	2.36 ozAverage
Dimensions	L 1.61 in W 0.81 in H 1.51 in
Case Material	Aluminum
Drivetrain
Motor Type	Coreless
Gears	Titanium / Steel
Gear Spline/Teeth	25 T estimate
Rotation/Support	Dual Bearings
Control & Signal
Modulation	Digital
Direction	Counterclockwise
Rotational Range	90°
Pulse Width	800-2200 µs
Neutral Position	1520 µs
Dead Band	2 µs
Refresh Rate	333 Hz
Control System	PWM
Electrical & Environment
Operating Voltage	6–8.4 V
Temperature	-20–60 °C
Idle Current	0.050 A
Connectivity
Connector	JR (Universal) estimate
Wire Length	300 mm
Origin
Country of Origin	Hong Kong

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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.

Compatible Hardware

Amazon eBay

*Spec is estimated from brand data.

Class Comparison

Torque	Above Average Stronger than 75% of 1060 Digital Standard servos at 6.0V
Speed	Below Average Faster than 25% of 1045 Digital Standard servos at 6.0V
Weight	Average Lighter than 40% of 1880 Digital Standard servos
Running Current	Below Average Lower draw than 20% of 226 Digital Standard servos at 6.0V
Stall Current	Above Average Lower draw than 81% of 570 Digital Standard servos

Performance Analysis

Shaft Power	3.63–6.91 W
Power Density	3.511 W/in³ More power-dense than 67% of 1768 Digital Standard servos
Torque Density	4.9755 oz-in/g Stronger than 78% of 1053 Digital Standard servos
Torque-to-Volume Ratio	169.29 oz-in/in³ Denser torque than 73% of 1058 Digital Standard servos
Speed-to-Weight	0.08780 (1/sec·g) Faster than 22% of 1038 Digital Standard servos
Speed-Torque Trade-off	56.68 Better balanced than 83% of 1034 Digital Standard servos
Current-per-Torque Ratio	0.0069 A/oz-in More efficient than 95% of 331 Digital Standard servos
Idle-to-Running Current Ratio	0.100 Lower idle draw than 35% of 167 Digital Standard servos
No-Load vs Stall Current Spread	4.60 Narrower current spread than 89% of 179 Digital Standard servos
Torque Gain per Volt	19.10%/V More voltage-responsive (torque) than 74% of 873 Digital Standard servos
Speed Gain per Volt	12.82%/V More voltage-responsive (speed) than 34% of 874 Digital Standard servos
Voltage Range Width	2.4 V Wider voltage range than 54% of 1560 Digital Standard servos
Dead-Band-to-Pulse-Width Ratio	0.0014 Finer dead band than 55% of 504 Digital Standard servos