Emax ES09MA

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Technical Specifications

Last Updated: 2026-10-08

Identity
Brand
Product Number	ES09MA
Category	Hobby
Performance
Torque	6.0V 36.11 oz-in 4.8V 31.95 oz-in Top 10%
Speed	6.0V 0.08 sec/60° 4.8V 0.10 sec/60° Above Average
Physical
Weight	0.52 ozBottom 10%
Dimensions	L 0.91 in W 0.47 in H 0.96 in
Case Material	Plastic
Drivetrain
Gears	Metal
Rotation/Support	Dual Bearings
Control & Signal
Modulation	Analog
Direction	Counterclockwise
Pulse Width	1500-1900 µs
Angle Sensor	Potentiometer
Electrical & Environment
Operating Voltage	4.8–6 V
Connectivity
Connector	Futaba \| JR
Origin
Country of Origin	China

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Compatible Hardware

Amazon eBay

*Based on known specs.

Class Comparison

Torque	Top 10% Stronger than 92% of 170 Analog Micro servos at 4.8V
Speed	Above Average Faster than 82% of 170 Analog Micro servos at 4.8V
Weight	Bottom 10% Lighter than 5% of 346 Analog Micro servos

Performance Analysis

Shaft Power	0.59–0.83 W
Power Density	2.033 W/in³ More power-dense than 96% of 333 Analog Micro servos
Torque Density	2.1588 oz-in/g Stronger than 50% of 170 Analog Micro servos
Torque-to-Volume Ratio	77.81 oz-in/in³ Denser torque than 93% of 170 Analog Micro servos
Speed-to-Weight	0.67568 (1/sec·g) Faster than 19% of 170 Analog Micro servos
Speed-Torque Trade-off	3.20 Better balanced than 83% of 169 Analog Micro servos
Torque Gain per Volt	10.85%/V More voltage-responsive (torque) than 27% of 96 Analog Micro servos
Speed Gain per Volt	20.83%/V More voltage-responsive (speed) than 82% of 96 Analog Micro servos
Voltage Range Width	1.2 V Wider voltage range than 23% of 182 Analog Micro servos