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KST X15-755X HV Digital Coreless Servo Motor (metal gear)

The KST X15-755X HV Brushless servo offers a significantly longer life-span, with a superior power to weight ratio. The servo features a nicely machined aluminium case and offerers high voltage capability. It can be run directly from a 2S LiPo battery without the need for a separate voltage regulator.

Another great benefit of X15 servos is the all new design of a circuit board that generates no counter EMF in any working conditions. It eliminates any possible interference with your flybarless system or receiver unit thus as a result giving you only the best in-flight performance.

Due to the extreme reliability and performance this servos are used in film and motion picture industry as well as in robotics, drones, UAV, UAS, academic researches, and other highly demanding applications such as use in various military projects,..


Technical Details:
Voltage (max.) [V]: 8.4

Torque [kg/cm]@6.0V: 7.2
Torque [kg/cm]@7.4V: 9.0
Torque [kg/cm]@8.4V: 10.2

Speed [s/60°]@6.0V: 0.06
Speed [s/60°]@7.4V: 0.05
Speed [s/60°]@8.4V: 0.04

Width [mm]: 15.0
Length [mm]: 35.5
Height [mm]: 32.5

Weight [g]: 40.0

Motor typ: Coreless
Working Frequency: 760us/560Hz, 450us-1050us
Resolution: <2us
Gear: Hardened Steel
Ball Bearing: 2BB
Output shaft type: 25T
Servo size: Mini
Waterproof: No
Manufacturer: KST


Suitable for use as s Tail Servo on 320-580 size RC Helicopters;

Such as Goblin 380 420, 500, KRAKEN 580, T-REX 450PRO DFC, 450L, 470, 500, Mikado LOGO 480, 500, OXY 5, and similar,..

KST X12-508 HV Digital Coreless Servo Motor (metal gear)

The KST X12-508 HV Brushless servo offers a significantly longer life-span, with a superior power to weight ratio. The servo features a nicely machined aluminium case and offerers high voltage capability. It can be run directly from a 2S LiPo battery without the need for a separate voltage regulator.

Another great benefit of X12 servos is the all new design of a circuit board that generates no counter EMF in any working conditions. It eliminates any possible interference with your flybarless system or receiver unit thus as a result giving you only the best in-flight performance.

Due to the extreme reliability and performance this servos are used in film and motion picture industry as well as in robotics, drones, UAV, UAS, academic researches, and other highly demanding applications such as use in various military projects,..


Technical Details:
Voltage (max.) [V]: 8.4

Torque [kg/cm]@6.0V: 4.2
Torque [kg/cm]@7.4V: 5.2
Torque [kg/cm]@8.4V: 6.2

Speed [s/60°]@6.0V: 0.09
Speed [s/60°]@7.4V: 0.08
Speed [s/60°]@8.4V: 0.07

Width [mm]: 12.0
Length [mm]: 23.0
Height [mm]: 27.5

Weight [g]: 20.0

Motor typ: Coreless
Working Frequency: 1520us/333Hz, 900us-2100us
Resolution: <2us
Gear: Metal Gear
Ball Bearing: 2BB
Output shaft type: 25T
Servo size: Micro
Waterproof: No
Manufacturer: KST


Suitable for Swashplate use on 250-470 size RC helicopters;

Such as Oxy 3, Goblin 280 Fireball, 380, 420, T-REX 250, 300, 450, 470, MSH PROTOS 380, and similars,..