Product Overview Engineered for heavy-vibration, long-cycle outdoor RC and robotic operations,EMAX RC Servos minimise gradual performance drift triggered by component wear, mechanical flex and complex wiring setups.
Featuring non-contact magnetic encoder feedback, wide-voltage compatibility and robust all-metal build, they maintain stable angular output under continuous vibration and heavy loading.
With true 360°positional control, they fit seamlessly into existing assemblies without major rework, delivering dependable performance for high-demand aircraft, helicopter and robotic projects.
Feature Non-contact magnetic encoder sustains stable angle output over long runtime, resisting performance variations caused by airborne vibration
Wide high-voltage support delivers improved torque and response, eliminating extra onboard conversion hardware for high-voltage Li-Po power systems
All-metal gears and housing withstand impact and sustained load, extending service life in harsh field operating conditions
Configurable 180° / 360° positional hold expands mechanical layout flexibility, reducing modification work on linkages and gears
Standard form-factor, JR connector and 23T spline support easy hardware upgrade without full-system rework
Application Scenarios
RC helicopter tail assemblies
Large-size fixed-wing aircraft main control surfaces
High-torque radio-controlled model platforms
Robotic joint assemblies and motorized rotating turntable mechanisms
Custom automation hardware and special-purpose RC equipment Specifications
Specification
ES9054Ⅱ
Product Type
Magnetic Encoder / Brushed / Digital / Metal Servo
Operating Voltage
6.0-8.4V
Speed(6.0 / 7.4 / 8.4V)
0.12 / 0.10 / 0.09 sec/60°
Stall Torque(6.0 / 7.4 / 8.4V)
18 / 22 / 25 kgf·cm
Stall Current
Approx.4.0-5.5A (typical reference range)
Net Weight
72 ±1g
Dimensions
Approx. 40 × 20 × 38.5 mm
Rotation Angle
180°±2°, supports 360° full-range positional control
Use For
Mid-high torque aircraft and robotic projects prioritizing quick reaction
Package List
1 × Servo Unit
Servo Horns & Mounting Hardware Kit
User Instruction Manual
FAQ
Q: Will a magnetic encoder RC servo work with my existing standard PWM receiver? A: Yes. These Emax RC Servos comply with standard 500-2500μs PWM and JR connector specs. Basic operation requires no special controller. Only 360° position mode needs corresponding controller parameter configuration.
Q: What real-world improvement does a magnetic encoder bring over potentiometer-based RC servos during flight? A: Potentiometer-based servos tend to develop positional offset under sustained vibration and long flight time. Magnetic encoder maintains stable centering over long-term use and cuts frequent in-flight trimming.
Q: Can I power this high-voltage radio control servo using a 2S LiPo battery? A: It works with lower-voltage input but cannot reach full rated performance. Make sure your BEC or power supply provides sufficient current for actual working loads.
Q: How will large outdoor temperature fluctuations affect servo performance? A: It supports broad ambient temperature ranges for outdoor use. Avoid continuous operation under extreme temperatures to preserve service lifespan.
Q: Is regular calibration needed after hard crashes or heavy impacts? A: Manual calibration is unnecessary after ordinary impacts. If shaking or position offset occurs following severe crashes, check linkages, servo horns and mounting parts for mechanical damage first.
