Digital Servos

KST DS565X HV Mini Digital Metal Gear Tail Servo is a great choice for helicopters ranging from 325mm-425mm rotor blade size requiring mini servos on the tail rotor! It’s critical to ensure your gyro has the capability to operate 760uS Tail Servos, ensuring that the KST 565X operates correctly

Specification:

• Operating Voltage: DC 6.0V-8.4V
• Size: 35.50*15*32.70mm

Torque:

• 4.00Kg.cm@6.0V
• 5.00Kg.cm@7.4V
• 6.00Kg.cm@8.4V

Speed:

• 0.06sec/60°@6.0V
• 0.05sec/60°@7.4V
• 0.04sec/60°@8.4V

Weight: 40g
Working Frequence: 760us/560Hz,
Motor: Φ15mm Coreless  Ball Bearing: 2BB

Package included:

• 1 x DS565X servo
• 1 x Direct servo arm
• 1 x Circle pan servo arm
• 1 x Cross servo arm
• 1 x Plum servo arm
• Screws and washers

DS589MG is a very powerful high voltage  servo suitable for helicopter cyclic and all fixed wing applications. At 15 mm thick and 43 g weight it is reasonably small and light, considering its excellent 9.2 kg.cm of torque and 0.08 sec/60° speed.

CNC Aluminum Case
All Metal Gear
Operating Voltage: 6.0v - 8.4v
Size: 35.50*15*32.7mm

Torque:

• 6.6 kg/cm@6.0V
• 8.0 kg/cm@7.4V
• 9.2 kg/cm@8.4V

Speed:

• .10 sec/60*@6.0V
• .09 sec/60*@7.4V
• .08 sec/60*@8.4v

Weight: 40g

Motor: 15mm coreless
Ball Bearing: 2BB
All Metal case and metal gear

HLS3008-12 V3.0 – 12V High-Performance Brushless Swashplate Servo (32kgf.cm @13V)

High-precision servo for RC helicopter swashplate control

The HLS3008-12 V3.0 is a premium-grade brushless servo designed specifically for demanding RC helicopter applications. Featuring a CNC-machined aluminum case, hardened steel gears, and a 6-ball bearing system, this servo offers outstanding torque, speed, and durability under high-load conditions.

Technical Specifications:

Rated Voltage: DC 12V

Voltage Range: DC 9.0V – 13.0V

Stalling Torque:

 • 28 kgf.cm @ 9.0V

 • 30 kgf.cm @ 12V

 • 32 kgf.cm @ 13V

Speed:

 • 0.10 sec/60° @ 9.0V

 • 0.08 sec/60° @ 12V

 • 0.07 sec/60° @ 13V

Working Frequency: 760 µs / 560 Hz

Operating Temperature: -10°C to +65°C

Programmable: Yes

Case Dimensions: 40 × 20 × 40 mm ±0.2 mm

Weight: 72 g ±10%

Ball Bearings: 6

Case Material: CNC Aluminum Alloy

Gear Material: Hardened Steel

Motor Type: Brushless DC Motor

Position Sensor: Potentiometer

Mounting: Vertical (standing) installation

Output Spline: 25T-6

Key Features:

• High-speed and high-torque performance
• Rugged design with steel gears and full aluminum casing
• Brushless motor for superior longevity and reliability
• Programmable settings for advanced tuning
• Engineered for large-scale and high-performance RC helicopters

Included in the Box:

• 1x HLS3008-12 V3.0 Servo
• Mounting hardware
• Servo arm (subject to manufacturer availability)

Applications:

• High-end RC helicopters
• Demanding control surface applications
• Professional RC models requiring speed, strength, and precision

KST Micro Cyclic Servo MS325 with Hall Effect (Contactless) Sensor

No more scratchy, sketchy potentiometers. Hall effect sensors are taking their place.  Many of the glitches and quirks we face from our servos are due to the potentiometers becoming dirty or plain old, worn out. So here we have the new MS servo series from KST with its hall effect sensor and a carefully aligned magnet taking the place of the potentiometer. With this no contact, position sensing system we are a step closer to the day when sketchy, twitchy, double centering servos, will be no more.  

Reliability and precision are the name of the game with these alloy cased, hardened steel geared, digital coreless servos. Its very high specs is appropriate for many high demand uses including high speed gliders, helicopters and sport planes.

The KST servos are very high quality and will impress you. Great value for the price!

Perfect cyclic servo for 450-480 class helicopter like Align T-Rex 450L, Gaui X3 or Goblin 380

Features:

• Contactless position sensor servo
• Coreless motor
• Hardened steel gear

Specification:

• Operation Voltage: DC6.0V-8.4V
• Size: 23x12x27.50mm

Torque:

• 3.8Kg.cm@6.0V     
• 4.6Kg.cm@7.4V       
• 5.2Kg.cm@8.4V

Speed:

• 0.09sec/60°@6.0V     
• 0.08sec/60°@7.4V      
• 0.07sec/60°@8.4V

Weight:20g 

The new KST MS589 is a very powerful high voltage contactless servo suitable for helicopter cyclic and all fixed wing aplications. At 15 mm thick and 38 g weight it is reasonably small and light, considering its excellent 9.2 kg.cm of torque and 0.08 sec/60° speed.

Specifications :

• Body dimensions: 35.5 mm wide x 15.0 mm thick x 32.5 mm high
• Stall torque (6V): 6.5 kg.cm
• Stall torque (7.4V): 8.0 kg.cm
• Stall torque (8.4V): 9.2 kg.cm
• Weight: 38.0 g     
• Lead length: 21 cm
• Operating speed (6V): 0.10 sec/60°
• Operating speed (7.4V): 0.09 sec/60°
• Operating speed (8.4V): 0.08 sec/60°
• Operating voltage: 6.0V to 8.4V
• Bearings: 2 ball bearing
• Gear material: Hardened steel
• Case material: Aluminium alloy
• Motor type: Coreless
• Working frequency: 333 Hz
• Digital: Yes
• Programmable: No
• Position feedback: Contactless/magnetic
• Operating temperature: -20 to +65 ºC

KST has another awesome servo with the DS725MG. It is blistering fast even when run on 6 volts. A great cyclic servo for 700 sized heli's or other applications where high speed, precision and huge strength are needed. Precision aerobatics, car steering, etc.

Operating Voltage: DＣ6.0V-8.4V

Size: 40.50*20*37mm

Torque: 18Kg.cm@8.4V

16Kg.cm@7.4V

13Kg.cm@6.0V

Speed: 0.07sec/60°@8.4V

0.08sec/60°@7.4V

0.09sec/60°@6.0V

Weight: 70g

Working Frequencies: 1520us/333Hz, 900us-2100us

The KST Servo Programming Tool #1 is used for programming KST V6 and V8 servos without the need for a PC or other computer.

This tool has a simple press-button interface that allows the servo mid point and end points to be set. It also allows the direction of rotation to be reversed.

Tool #1 User Guide

1.1. When using with KST X08 and X10 servos power the Tool#1 using any 4.8V to 8.4V DC power source with an XT60 plug (eg a 2S LiPo battery). The exact same output voltage that is fed into the tool is output to the servo, so using a 3S or higher voltage LiPo will irretrievably damage any X08 or X10 servo. The tool DOES NOT regulate the voltage down to a safe level for the servo.

1.2. The voltage input needs to be set according to the working voltage range of different models of KST servos. Do not input high voltage at will. The correct voltage must be used in order not to burn the servo out. For example: if programming a KST X08 V6 servo, the working voltage range is 3.8V – 8.4V, so the input voltage range must be 4.8V-8.4V DC. Alternatively if programming a KST X20-12-M 835-1 servo the working voltage range is 9-13V, so the input voltage range must be 8.4V DC.

2. Output interface: There are two rows of contacts, for programming one servo. The second row is spare. To connect the servo, orient the servo plug so the orange wire is aligned to the "S" mark, and the brown wire to the "-" mark.
-- = servo negative = brown
+ = servo positive = red
S = servo PWM signal = orange

3. Power-on and setting operation steps

3.1. Connect the power supply. After power-on, Tool#1 will enter the self-test. After the self-test is successfully completed, the buzzer will sound twice, and the orange power light of P_LED will blink. You can now connect the servo.

3.2. After checking the correct voltage connect the servo to the RC plug port. After connecting the servo the Tool#1 will automatically recognize this and output a 1500us PMW signal to command the servo to the midpoint location. At this time, the LED below 1500us will turn red and the Tool#1 enters the midpoint setting mode.

3.3. Midpoint setting: After entering the midpoint setting mode, press the "+" and "-" buttons below the 1500us label to set the required servo arm position for the midpoint PMW value, then press the Enter button to confirm. After the confirmation is successful, the buzzer will sound once. This indicates that the midpoint setting is completed and the Tool#1 enters the left and right stroke setting mode.

3.4. Left and right stroke setting: Press the "+" and "-" buttons below the 1000us label to set the max output arm movement in the low PMW signal direction. Then press the "+" and "-" buttons below the 2000us label to set max movement in the other direction. Then press the Enter key to send this info to the servo. The buzzer will sound once to indicate that the left and right stroke setting has been successfully made. The orange power light of P_LED will also start flashing, indicating that all operations have been completed and Tool#1 will enter waiting state, ready for another servo to be connected.

3.5. To only set the servo midpoint position, enter the midpoint setting mode and press the Enter button twice after the setting is complete. To only set the left and right movements, after entering the midpoint setting mode, press the Enter button once to enter the left and right stroke setting mode. After the setting is completed, press the Enter button to complete the servo setup.

4. Use of "CW/CCW" button

4.1. CW = clockwise; CCW = counter-clockwise.

4.2. After entering the left and right stroke setting mode, press the "CW/CCW" button to reverse the servo rotation for a given change of input signal. Then press the Enter key to confirm.

5. The Reset button. The Reset button only resets the Tool#1, and does not reset the connected servo.

The KST Tool #5 is an advanced programming device specifically engineered for precise tuning and adjustment of KST V6 and V8 Servos. This tool empowers users with complete control over their servos, ensuring optimal performance and customization.

Key Programming Features:

• Adjust Right Servo Travel: Fine-tune the servo's right-side travel precisely to achieve the desired motion range.
• Set Servo Center: Fine-tune the servo center for optimal alignment and responsiveness.
• Adjust Left Servo Travel: Precisely set the servo's left-side travel for desired movement deflection.
• Servo Reversing: Quickly and easily reverse the servo for different applications or requirements.
• Soft Start Function: Toggle the soft start option on/off for smooth and controlled movements.

CAUTION INPUT VOLTAGE = OUTPUT VOLTAGE!

It's crucial to not exceed the servo's maximum allowed supply voltage.
Use a 5V supply or a 2S LiPo.

The KST Tool #5 Professional boasts a user-friendly interface, facilitating straightforward and accurate programming of your KST servos for diverse applications in model-building and robotics control systems.

Optimize your servo performance with the precision control offered by the KST Tool#5 Professional, ensuring tailor-made motion applications for various user needs.

See the Instruction Manual PDF below for more info.

The KST Servo Programming Tool Card #5 is used for programming KST servos without the need for a computer.

The Tool Card #5 is an updated version of Tool Card #1. The updated Tool Card #5 features a user friendly interface for setting the servo neutral point and end point. The knob design makes the servo parameter adjustment easier and more intuitive. It also allows reversing the direction of rotation. With this tool, the servo parameter adjustment will be much easier than ever.

Servo Programming Tool Card #3 - A programming device for KST V6.0 and V8.0 servos, it is a very useful tool that makes it possible to not only change the frequency of the servo but also to set the neutral position which likewise adjusts the full travel. This gives the ultimate perfect centering of the servo, a handy tool!

Operating instructions

1. Connect the device to a 6-9V power supply, and the frequency indicators will start to flash.

2. Connect the servo to the servo port. The device will detect the servo frequency and illuminate the corresponding frequency indicator light.

3. Press the toggle frequency button to switch between frequencies. Press enter to select the frequency of the servo in use.

4. Use the dial to center the servo, and press "Enter" to confirm. Press down on the "Neutral set" dial to reset the device.

The SV10-12A is an ultra-thin high-voltage brushless wing servo, specifically engineered for RC gliders, F5J competition models, EDF jets, and industrial UAV applications. With a sleek, compact design and precision mechanics, it’s the ideal solution for wing installations where space, accuracy, and performance are critical.

This servo delivers up to 14.0Kgf.cm of torque at 13V, with a lightning-fast 0.10sec/60° response, making it suitable for rapid and precise aerodynamic control. Built with hardened steel gears, a brushless DC motor, and a CNC-machined aluminum alloy case, the SV10-12A is designed to withstand demanding use while maintaining exceptional responsiveness.

Operating from a DC 12V power source or directly via 2–3S LiPo batteries, it supports a wide voltage range from 8V to 13V, offering versatility and consistency for advanced RC applications.

This is the Horizontal TAB Version Mounting of the SV10

Features :

• Ultra-Thin Wing Servo Profile
• High Voltage Operation (Rated DC12V)
• Supports 8–13V or 2–3S LiPo Direct Input
• High Torque: 14Kgf.cm @13V
• High Speed: 0.10s @13V
• Programmable Functions
• Brushless DC Motor
• Hardened Steel Gears
• CNC Aluminium Alloy Case
• Ideal for RC Gliders, UAVs, F5J, and EDF Jets

Specifications :

• Item: SV10-12A Servo
• Rated Voltage: DC 12V
• Voltage Range: DC 8.0V – 13.0V
• Torque: 11Kgf.cm@8.4V / 13Kgf.cm@12V / 14Kgf.cm@13V
• Speed: 0.15sec/60°@8.4V / 0.12sec/60°@12V / 0.10sec/60°@13V
• Working Frequency: 1520μs / 333Hz
• Travel Angle: ±60° = 120° Total
• Temperature Range: -20°C to +65°C
• Programmable: Yes
• Soft Start: Programmable
• Motor Type: Brushless DC Motor
• Gear Set Material: Hardened Steel
• Case Material: Aluminium Alloy
• Position Sensor: Potentiometer
• Ball Bearings: 2BB
• Dimensions: 30 × 10 × 35 mm ±0.2mm
• Weight: 26g ±10%

Package Includes :

• 1 × SV10-12A Servo
• Servo Horns
• Mounting Screws
• Rubber Grommets
• Eyelets

The KST SV10-12A is a premium solution for serious RC pilots and UAV developers seeking performance, compactness, and reliability in aerodynamic control surfaces.

The SV10-12B is an ultra-thin high-voltage brushless wing servo, specifically engineered for RC gliders, F5J competition models, EDF jets, and industrial UAV applications. With a sleek, compact design and precision mechanics, it’s the ideal solution for wing installations where space, accuracy, and performance are critical.

This servo delivers up to 14.0Kgf.cm of torque at 13V, with a lightning-fast 0.10sec/60° response, making it suitable for rapid and precise aerodynamic control. Built with hardened steel gears, a brushless DC motor, and a CNC-machined aluminum alloy case, the SV10-12B is designed to withstand demanding use while maintaining exceptional responsiveness.

Operating from a DC 12V power source or directly via 2–3S LiPo batteries, it supports a wide voltage range from 8V to 13V, offering versatility and consistency for advanced RC applications.

This is the Vertical Standard TAB Version Mounting of the SV10

Features :

• Ultra-Thin Wing Servo Profile
• High Voltage Operation (Rated DC12V)
• Supports 8–13V or 2–3S LiPo Direct Input
• High Torque: 14Kgf.cm @13V
• High Speed: 0.10s @13V
• Programmable Functions
• Brushless DC Motor
• Hardened Steel Gears
• CNC Aluminium Alloy Case
• Ideal for RC Gliders, UAVs, F5J, and EDF Jets

Specifications :

• Item: SV10-12B Servo
• Rated Voltage: DC 12V
• Voltage Range: DC 8.0V – 13.0V
• Torque: 11Kgf.cm@8.4V / 13Kgf.cm@12V / 14Kgf.cm@13V
• Speed: 0.15sec/60°@8.4V / 0.12sec/60°@12V / 0.10sec/60°@13V
• Working Frequency: 1520μs / 333Hz
• Travel Angle: ±60° = 120° Total
• Temperature Range: -20°C to +65°C
• Programmable: Yes
• Soft Start: Programmable
• Motor Type: Brushless DC Motor
• Gear Set Material: Hardened Steel
• Case Material: Aluminium Alloy
• Position Sensor: Potentiometer
• Ball Bearings: 2BB
• Dimensions: 30 × 10 × 35 mm ±0.2mm
• Weight: 26g ±10%

Package Includes :

• 1 × SV10-12B Servo
• Servo Horns
• Mounting Screws
• Rubber Grommets
• Eyelets

The KST SV10-12B is a premium solution for serious RC pilots and UAV developers seeking performance, compactness, and reliability in aerodynamic control surfaces.

The KST SV10M-12A is a high-voltage micro wing servo designed for lightweight and high-precision applications such as RC gliders, F5J competition aircraft, EDF jets, and industrial UAVs. With its ultra-thin profile and featherweight construction, this servo is ideal for installations with minimal space and weight constraints.

Despite its compact size, the SV10M-12A delivers impressive performance: up to 9.0Kgf.cm of torque at 13V and a quick 0.11sec/60° speed. Its brushless DC motor, dual ball bearings, and hardened steel geartrain ensure smooth, powerful, and reliable motion control over time.

Operating within a wide voltage range of 8.0V to 13.0V, and compatible with 2–3S LiPo direct drive, this servo is engineered for precise actuation in modern high-performance platforms.

This is the Horizontal TAB Version Mounting of the SV10 Mini

Features : 

• Micro Thin Wing Servo
• Rated for DC12V High Voltage
• Supports 8–13V Input or 2–3S LiPo Battery
• Torque: 9Kgf.cm @13V
• Speed: 0.11s @13V
• Programmable
• Brushless DC Motor
• Hardened Steel Gears
• Dual Ball Bearings
• CNC Aluminium Alloy Case
• Perfect for RC Gliders, UAVs, F5J, and Lightweight Jets

Specifications :

• Item: SV10M-12A Servo
• Rated Voltage: DC 12V
• Voltage Range: DC 8.0V – 13.0V
• Torque: 7Kgf.cm@8.4V / 8.5Kgf.cm@12V / 9.0Kgf.cm@13V
• Speed: 0.14sec/60°@8.4V / 0.12sec/60°@12V / 0.11sec/60°@13V
• Working Frequency: 1520μs / 333Hz
• Travel Angle: ±60° = 120° Total
• Temperature Range: -20°C to +65°C
• Programmable: Yes
• Soft Start: Programmable
• Motor Type: Brushless DC Motor
• Gear Set Material: Hardened Steel
• Case Material: Aluminium Alloy
• Position Sensor: Potentiometer
• Ball Bearings: 2BB
• Dimensions: 30 × 10 × 35 mm ±0.2mm
• Weight: 22g ±10%

Package Includes :

• 1 × SV10M-12A Servo
• Servo Horns
• Mounting Screws
• Rubber Grommets
• Eyelets

The KST SV10M-12A is the ideal micro wing servo for lightweight, high-performance airframes where space and precision are key. Trusted by glider pilots, UAV engineers, and F5J competitors worldwide.

The KST SV10M-12B is a high-voltage micro wing servo designed for lightweight and high-precision applications such as RC gliders, F5J competition aircraft, EDF jets, and industrial UAVs. With its ultra-thin profile and featherweight construction, this servo is ideal for installations with minimal space and weight constraints.

Despite its compact size, the SV10M-12B delivers impressive performance: up to 9.0Kgf.cm of torque at 13V and a quick 0.11sec/60° speed. Its brushless DC motor, dual ball bearings, and hardened steel geartrain ensure smooth, powerful, and reliable motion control over time.

Operating within a wide voltage range of 8.0V to 13.0V, and compatible with 2–3S LiPo direct drive, this servo is engineered for precise actuation in modern high-performance platforms.

This is the Vertical Standard TAB Version Mounting of the SV10

Features : 

• Micro Thin Wing Servo
• Rated for DC12V High Voltage
• Supports 8–13V Input or 2–3S LiPo Battery
• Torque: 9Kgf.cm @13V
• Speed: 0.11s @13V
• Programmable
• Brushless DC Motor
• Hardened Steel Gears
• Dual Ball Bearings
• CNC Aluminium Alloy Case
• Perfect for RC Gliders, UAVs, F5J, and Lightweight Jets

Specifications :

• Item: SV10M-12B Servo
• Rated Voltage: DC 12V
• Voltage Range: DC 8.0V – 13.0V
• Torque: 7Kgf.cm@8.4V / 8.5Kgf.cm@12V / 9.0Kgf.cm@13V
• Speed: 0.14sec/60°@8.4V / 0.12sec/60°@12V / 0.11sec/60°@13V
• Working Frequency: 1520μs / 333Hz
• Travel Angle: ±60° = 120° Total
• Temperature Range: -20°C to +65°C
• Programmable: Yes
• Soft Start: Programmable
• Motor Type: Brushless DC Motor
• Gear Set Material: Hardened Steel
• Case Material: Aluminium Alloy
• Position Sensor: Potentiometer
• Ball Bearings: 2BB
• Dimensions: 30 × 10 × 35 mm ±0.2mm
• Weight: 22g ±10%

Package Includes :

• 1 × SV10M-12B Servo
• Servo Horns
• Mounting Screws
• Rubber Grommets
• Eyelets

The KST SV10M-12B is the ideal micro wing servo for lightweight, high-performance airframes where space and precision are key. Trusted by glider pilots, UAV engineers, and F5J competitors worldwide.

The KST SV12-12 is a high-voltage micro servo designed for compact, high-precision applications such as RC helicopters, robotics systems, and small UAVs. Built with a CNC-machined aluminum alloy case and a brushless motor, this servo combines strength, speed, and reliability in a micro format.

Despite its small size, the SV12-12 delivers up to 9.0Kgf.cm of torque at 13V, with an ultra-fast 0.10sec/60° rotation speed. This makes it an excellent choice for precise, responsive control in demanding control surfaces or mechanical systems.

It supports operation from 8.0V to 13.0V and can be powered directly via 2–3S LiPo batteries, offering flexible integration into most modern RC and robotic platforms.

Features :

• Micro Size High Voltage Servo
• DC12V Rated, Supports 8–13V or 2–3S LiPo Direct Drive
• Torque: 9Kgf.cm @13V
• Speed: 0.10s @13V
• Programmable Functions
• Brushless DC Motor
• CNC-Machined Aluminum Case
• Hardened Steel Gear Train
• Compact & Lightweight Design
• Ideal for RC Helicopters, Robotics, and Compact UAVs

Specifications :

• Item: SV12-12 Servo
• Rated Voltage: DC 12V
• Voltage Range: DC 8.0V – 13.0V
• Torque: 7Kgf.cm@8.4V / 8.5Kgf.cm@12V / 9.0Kgf.cm@13V
• Speed: 0.14sec/60°@8.4V / 0.12sec/60°@12V / 0.10sec/60°@13V
• Working Frequency: 1520μs / 333Hz
• Travel Angle: ±60° = 120° Total
• Temperature Range: -20°C to +65°C
• Programmable: Yes
• Soft Start: Programmable
• Motor Type: Brushless DC Motor
• Gear Set Material: Hardened Steel
• Case Material: Aluminium Alloy
• Position Sensor: Potentiometer
• Ball Bearings: 2BB
• Dimensions: 23 × 12 × 27.8 mm ±0.2mm
• Weight: 20g ±10%

Package Includes :

• 1 × SV12-12 Servo
• Servo Horns
• Mounting Screws
• Rubber Grommets
• Eyelets

The KST SV12-12 is the perfect high-performance micro servo for compact RC helicopters, advanced robotics, and any system requiring speed, torque, and precision in a minimal footprint.

The KST SV12S-12 is a high-voltage brushless wing servo engineered for applications requiring compact design, high torque, and precise actuation — including RC gliders, EDF jets, and industrial UAV systems. Its slim housing and powerful output make it a top-tier solution for aerodynamic control surfaces.

Delivering up to 14.5Kgf.cm of torque at 13V with a fast 0.10sec/60° response time, this servo ensures smooth and accurate motion, even under aerodynamic loads. The SV12S-12 features a robust hardened steel geartrain, a high-performance brushless DC motor, and a CNC-machined aluminum case for excellent thermal and structural performance.

Operating from a wide voltage range of 8.0V to 13.0V, and compatible with 2–3S LiPo battery direct input, this servo fits seamlessly into high-demand HV setups for advanced aircraft and unmanned systems.

This is the "Blazing Speed" Version of the SV12

Features : 

• High Voltage Operation (Rated DC12V)
• Supports 8–13V Input or 2–3S LiPo Direct Drive
• High Torque: 14.5Kgf.cm @13V
• Fast Response: 0.10s @13V
• Programmable
• Brushless DC Motor
• Hardened Steel Gears
• Dual Ball Bearings
• CNC Aluminium Alloy Case
• Optimized for RC Gliders, Jets, and Industrial UAVs

Specifications :

• Item: SV12S-12 Servo
• Rated Voltage: DC 12V
• Voltage Range: DC 8.0V – 13.0V
• Torque: 11.5Kgf.cm@8.4V / 13.5Kgf.cm@12V / 14.5Kgf.cm@13V
• Speed: 0.15sec/60°@8.4V / 0.12sec/60°@12V / 0.10sec/60°@13V
• Working Frequency: 1520μs / 333Hz
• Travel Angle: ±60° = 120° Total
• Temperature Range: -20°C to +65°C
• Programmable: Yes
• Soft Start: Programmable
• Motor Type: Brushless DC Motor
• Gear Set Material: Hardened Steel
• Case Material: Aluminium Alloy
• Position Sensor: Potentiometer
• Ball Bearings: 2BB
• Dimensions: 35 × 10 × 30 mm ±0.2mm
• Weight: 27g ±10%

Package Includes :

• 1 × SV12S-12 Servo
• Servo Horns
• Mounting Screws
• Rubber Grommets
• Eyelets

The KST SV12S-12 is the perfect solution for high-precision wing control in compact aircraft and UAVs, offering outstanding performance, durability, and integration flexibility for professional builders and pilots.

The KST SV12T-12 is a powerful and compact high-voltage wing servo designed for RC jets, high-speed gliders, and industrial UAVs. With its slim profile, robust build, and responsive performance, it is a top-tier choice for precision control in demanding wing-mounted applications.

Delivering up to 14.5Kgf.cm of torque at 13V with a rapid 0.10sec/60° actuation speed, the SV12T-12 is ideal for surfaces requiring immediate, controlled movement. Equipped with hardened steel gears, a durable brushless DC motor, and a CNC-machined aluminum housing, it is built for high-stress flight conditions.

It supports a broad voltage range from 8.0V to 13.0V and is fully compatible with 2–3S LiPo direct input, making integration easy into modern high-performance RC and UAV systems.

This is the "Colossal Torque" Version of the SV12

Features :

• High Voltage Operation (Rated DC12V)
• Supports 8–13V Input or 2–3S LiPo Battery Direct Drive
• High Torque: 14.5Kgf.cm @13V
• Fast Speed: 0.10s @13V
• Programmable
• Brushless DC Motor
• Hardened Steel Gear Set
• Dual Ball Bearings
• CNC Aluminium Alloy Case
• Optimized for RC Jets, Gliders, and UAVs

Specifications :

• Item: SV12T-12 Servo
• Rated Voltage: DC 12V
• Voltage Range: DC 8.0V – 13.0V
• Torque: 11.5Kgf.cm@8.4V / 13.5Kgf.cm@12V / 14.5Kgf.cm@13V
• Speed: 0.15sec/60°@8.4V / 0.12sec/60°@12V / 0.10sec/60°@13V
• Working Frequency: 1520μs / 333Hz
• Travel Angle: ±60° = 120° Total
• Temperature Range: -20°C to +65°C
• Programmable: Yes
• Soft Start: Programmable
• Motor Type: Brushless DC Motor
• Gear Set Material: Hardened Steel
• Case Material: Aluminium Alloy
• Position Sensor: Potentiometer
• Ball Bearings: 2BB
• Dimensions: 35 × 10 × 30 mm ±0.2mm
• Weight: 27g ±10%

Package Includes :

• 1 × SV12T-12 Servo
• Servo Horns
• Mounting Screws
• Rubber Grommets
• Eyelets

The KST SV12T-12 is the trusted solution for high-speed control surfaces in RC jets, performance gliders, and UAV systems. Built to deliver stability, strength, and precision — even under high aerodynamic stress.

The KST SV15-12 is a Super High Voltage (SHV) coreless digital servo designed for high-performance applications such as RC helicopters, industrial UAVs, and advanced robotics. Compact yet powerful, this servo offers the perfect balance of torque, speed, and precision in a mini format.

With up to 20.0Kgf.cm of torque at 13V and an impressive 0.10sec/60° response time, the SV15-12 is built for responsive, high-load control. Equipped with a coreless motor, dual ball bearings, and a hardened steel gear train, it provides smooth, fast, and accurate actuation for critical functions.

Rated for DC 12V SHV operation and compatible with 2–3S LiPo direct drive, this servo supports input voltages between 8.0V and 13.0V, offering excellent flexibility across different RC power systems.

Features :

• Super High Voltage (SHV) – Rated for 12V
• Supports 8–13V or 2–3S LiPo Battery Direct Input
• Torque: 20.0Kgf.cm @13V
• Speed: 0.10sec @13V
• Mini Size with High Performance
• Coreless DC Motor
• Hardened Steel Gear Set
• Dual Ball Bearings
• CNC Aluminium Alloy Case
• Programmable Functionality
• Ideal for RC Helicopters, UAVs, and Robotics

Specifications :

• Item: SV15-12 Servo
• Rated Voltage: DC 12V
• Voltage Range: DC 8.0V – 13.0V
• Torque: 16.0Kgf.cm@8.4V / 18.0Kgf.cm@12V / 20.0Kgf.cm@13V
• Speed: 0.13sec/60°@8.4V / 0.11sec/60°@12V / 0.10sec/60°@13V
• Working Frequency: 1520μs / 333Hz
• Travel Angle: ±60° = 120° Total
• Temperature Range: -20°C to +65°C
• Programmable: Yes
• Soft Start: Programmable
• Motor Type: Coreless DC Motor
• Gear Set Material: Hardened Steel
• Case Material: Aluminium Alloy
• Position Sensor: Potentiometer
• Ball Bearings: 2BB
• Dimensions: 35 × 15 × 30 mm ±0.2mm
• Weight: 33g ±10%

Package Includes :

• 1 × SV15-12 Servo
• Servo Horns
• Mounting Screws
• Rubber Grommets
• Eyelets

The KST SV15-12 is the go-to SHV mini servo for pilots and engineers requiring compact size with no compromise on power or precision. Ideal for modern electric helicopters, drones, and robotic systems where performance and reliability are non-negotiable.

Introducing the SV3312-12 HV brushless servo, an outstanding option for 700–800 class RC helicopters and large scale RC planes. These servos deliver exceptional power, providing an impressive 38Kgf.cm of torque at 13V, while maintaining a rapid 0.10sec/60° speed.

Designed to operate with either 12V DC or up to a 3S LiPo battery direct drive, these servos ensure reliable and steady performance in any situation. With dual ball bearings, the gear train is rock-solid, ensuring pinpoint-accurate movement with smooth response. This high-voltage servo is built to last, offering unparalleled power, precision, and rugged construction for demanding RC pilots.

Features :

• DC12V High Voltage
• Support 8–13V High Voltage or 2–3S LiPo Battery Direct Drive
• Ultra High Torque & Excellent Speed
• Programmable
• Dual Ball Bearings
• Brushless DC Motor
• Ideal for 700–800 Class RC Helis & Large Scale RC Planes

Specifications :

• Item: SV3312-12 Servo
• Rated Voltage: DC 12V
• Voltage Range: DC 8.0V – 13.0V
• Torque: 28Kgf.cm@8.4V / 33Kgf.cm@12V / 38Kgf.cm@13V
• Speed: 0.16sec/60°@8.4V / 0.12sec/60°@12V / 0.10sec/60°@13V
• Working Frequency: 1520μs / 333Hz
• Default Travel Angle: ±60° = 120° Total
• Temperature Range: -20°C to +65°C
• Soft Start: Programmable
• Programmable: Yes
• Case Material: Aluminium Alloy
• Motor Type: Brushless DC Motor
• Gear Set Material: Hardened Steel
• Position Sensor: Potentiometer
• Ball Bearing: 2BB
• Case Dimensions: 40.5 × 20 × 38 mm ±0.2mm
• Weight: 70g ±10%

Package Includes :

• 1 × SV3312-12 Servo
• 5 × Plastic Servo Horn
• 1 × Servo Horn Screw
• 4 × Rubber Grommet
• 4 × Eyelet
• 4 × Mounting Screw

The KST SV3312-12 is the ideal solution for pilots looking for maximum reliability and performance in high-power setups. Whether you're flying aggressive 3D in a 700 class heli or piloting a large-scale airplane, this servo delivers.

The KST SV4012-12 is a high-performance low-profile brushless digital servo designed for RC cars, robotics, and compact high-load control systems. Engineered for strength and speed in tight spaces, it features a slim design while delivering outstanding torque and precision.

Powered by a 4-pole brushless motor, the SV4012-12 delivers up to 42Kgf.cm of torque at 13V with a swift 0.10sec/60° response time. This makes it a perfect fit for high-performance surface control in racing cars, industrial robotics, and advanced mechatronics.

With its rugged CNC-machined aluminum housing, hardened steel geartrain, and dual ball bearings, this servo is built for long-lasting precision even in the harshest environments. It supports a wide voltage range of 8.0V to 13.0V and is compatible with 2–3S LiPo battery direct input.

Features : 

• High Voltage Operation – Rated DC12V
• Supports 8–13V Input or 2–3S LiPo Battery Direct
• 4-Pole Brushless DC Motor
• Ultra High Torque: 42Kgf.cm @13V
• High Speed: 0.10sec/60° @13V
• Low Profile Design
• Programmable
• CNC-Machined Aluminum Alloy Case
• Hardened Steel Geartrain
• Dual Ball Bearings
• Ideal for RC Cars, Robotics, and Industrial Applications

Specifications : 

• Item: SV4012-12 Low Profile Brushless Servo
• Rated Voltage: DC 12V
• Voltage Range: DC 8.0V – 13.0V
• Torque: 32Kgf.cm@8.4V / 39Kgf.cm@12V / 42Kgf.cm@13V
• Speed: 0.14sec/60°@8.4V / 0.11sec/60°@12V / 0.10sec/60°@13V
• Working Frequency: 1520μs / 333Hz
• Travel Angle: ±60° = 120° Total
• Temperature Range: -20°C to +65°C
• Programmable: Yes
• Soft Start: Programmable
• Motor Type: 4-Pole Brushless DC Motor
• Gear Set Material: Hardened Steel
• Case Material: CNC Aluminium Alloy
• Position Sensor: Potentiometer
• Ball Bearings: 2BB
• Dimensions: 40 × 20 × 25 mm ±0.2mm
• Weight: 62g ±10%

Package Includes :

• 1 × SV4012-12 Brushless Low Profile Servo
• Servo Horns
• Mounting Screws
• Rubber Grommets
• Eyelets

The KST SV4012-12 is a professional-grade servo for competitive RC and industrial users who demand compact dimensions without compromising on torque, speed, or durability.

Introducing the KST SV6010-12 HV brushless digital servo, designed to deliver extreme performance and durability for large scale RC cars, airplanes, jets, and other high-demand RC models.

With an incredible 70Kgf.cm of torque at 13V and an ultra-fast 0.09sec/60° speed, this servo ensures precise, immediate response under load. Whether on the track or in the air, it’s built for professional-grade control.

Powered directly via DC 12V or 2–3S LiPo batteries, the SV6010-12 operates within a voltage range of 8.4V to 13.0V. It features a fully CNC-machined aluminum alloy case, a robust hardened steel geartrain, and a high-efficiency brushless motor for unmatched performance and reliability.

Features :

• DC12V High Voltage Compatible
• Supports 8–13V Input or 2–3S LiPo Direct Drive
• Ultra High Torque: 70Kgf.cm @13V
• Fast Response Time: 0.09s @13V
• Brushless DC Motor
• Dual Ball Bearings
• CNC Aluminium Case
• Programmable
• Ideal for Large Scale RC Cars, Airplanes, and Jets

Specifications :

• Item: SV6010-12 Servo
• Rated Voltage: DC 12V
• Voltage Range: DC 8.0V – 13.0V
• Torque: 52Kgf.cm@8.4V / 64Kgf.cm@12V / 70Kgf.cm@13V
• Speed: 0.13sec/60°@8.4V / 0.10sec/60°@12V / 0.09sec/60°@13V
• Working Frequency: 1520μs / 333Hz
• Default Travel Angle: ±60° = 120° Total
• Temperature Range: -20°C to +65°C
• Programmable: Yes
• Soft Start: Programmable
• Case Material: Aluminium Alloy
• Motor Type: Brushless DC Motor
• Gear Set Material: Hardened Steel
• Position Sensor: Potentiometer
• Ball Bearing: 2BB
• Case Dimensions: 40.5 × 20 × 38 mm ±0.2mm
• Weight: 70g ±10%

Package Includes :

• 1 × SV6010-12 Brushless Digital Servo
• 5 × Plastic Servo Horns
• 1 × Servo Horn Screw
• 4 × Rubber Grommets
• 4 × Eyelets
• 4 × Mounting Screws

The KST SV6010-12 is the ultimate servo choice for large and powerful RC platforms that demand reliability, accuracy, and raw force. Perfect for serious competitors and scale builders alike.

The KST SV7012-12 is a Super High Voltage (HV) brushless servo delivering unmatched torque, precision, and reliability for RC vehicles, robotics, UAVs, and industrial automation systems. Designed for heavy-duty control in compact form, it’s the ideal solution for power-demanding setups.

This servo outputs up to an incredible 75Kgf.cm of torque at 13V while maintaining a fast 0.10sec/60° rotation speed. Thanks to its 4-pole brushless motor, hardened steel geartrain, and robust CNC-machined aluminum case, the SV7012-12 handles continuous high-load operations with precision and confidence.

It supports direct input from 2–3S LiPo batteries or regulated DC 12V power sources, operating over a wide range of 8.0V to 13.0V. Fully programmable and engineered for durability, this servo meets the highest demands of modern high-performance RC and industrial systems.

Features :

• Super High Torque: 75Kgf.cm @13V
• High Speed: 0.10sec/60° @13V
• 4-Pole Brushless DC Motor
• Supports 8–13V Input or 2–3S LiPo Direct Power
• High Voltage Operation (Rated DC12V)
• Programmable Functionality
• CNC-Machined Aluminium Alloy Case
• Hardened Steel Geartrain
• Dual Ball Bearings
• Ideal for Heavy-Duty RC, Robotics, UAVs, and Industrial Use

Specifications : 

• Item: SV7012-12 Servo
• Rated Voltage: DC 12V
• Voltage Range: DC 8.0V – 13.0V
• Torque: 60Kgf.cm@8.4V / 70Kgf.cm@12V / 75Kgf.cm@13V
• Speed: 0.14sec/60°@8.4V / 0.11sec/60°@12V / 0.10sec/60°@13V
• Working Frequency: 1520μs / 333Hz
• Travel Angle: ±60° = 120° Total
• Temperature Range: -20°C to +65°C
• Programmable: Yes
• Soft Start: Programmable
• Motor Type: 4-Pole Brushless DC Motor
• Gear Set Material: Hardened Steel
• Case Material: Aluminium Alloy (CNC Machined)
• Position Sensor: Potentiometer
• Ball Bearings: 2BB
• Dimensions: 40 × 20 × 40 mm ±0.2mm
• Weight: 80g ±10%

Package Includes :

• 1 × SV7012-12 Brushless Servo
• Servo Horns
• Mounting Screws
• Rubber Grommets
• Eyelets

The KST SV7012-12 is built for extreme strength and reliability in critical motion control applications. Whether you're powering steering on a 1/5 scale RC car, a robotic arm, or UAV payload system, this servo delivers unwavering performance.

Presenting the outstanding value SV905-12 HV brushless tail servo, crafted specifically for enthusiasts of 550-700 class RC helicopters who demand top-tier performance and unwavering reliability. The SV905-12 HV tail servos excel in power delivery, driving an impressive 17Kgf.cm of torque at 13V while maintaining an exceptional 0.04-second speed for lightning-fast responsiveness.

Engineered with an emphasis on 12V LiPo Battery Direct Drive, these servos guarantee steadfast stability and dependable performance under any circumstances. Featuring dual ball bearings, our servos establish a rock-solid gear-train, ensuring seamless and pinpoint-accurate operation.

This high-voltage servo is set to leave a lasting impression, elevating your experience with unprecedented levels of power and precision.

Features

• DC 12V Rated Voltage
• Support 8-13V High Voltage or 2-3S LiPo Battery Direct Drive
• High Frequency & Fast Response
• Ultra High Torque & Excellent Speed
• Dual Ball Bearings
• Brushless DC Motor
• Hardened Steel Gear
• CNC Aluminium Case
• Programmable (Please refer to the programming tool manual for correct voltage)
• Ideal for 550-700 Class RC Helicopters Tail  
  
  Specification

• Item: SV905-12 Tail Servo
• Rated Voltage: DC12V
• Voltage Range: DC8.0V-13V
• Torque: 13Kgf.cm@8.4V / 16Kgf.cm@12V / 17Kgf.cm@13V
• Speed: 0.06sec/60°@8.4V / 0.045sec/60°@12V / 0.040sec/60°@13V
• Working Frequency: 760μs/560Hz
• Temperature Range: -10℃.......+65℃
• Programmable: Yes (Please refer to the Programming tool manual for correct voltage)
• Case Material: Aluminium Alloy
• Motor Type: Brushless DC Motor
• Gear Set Material: Hardened Steel
• Position Sensor: Potentiometer
• Case Dimensions: 40.5mm*20mm*38mm±0.2mm
• Weight: 70g±10%
• Ball Bearing: 2BB

KST SV915-12 V3.0 Heli swashplate servo with 760us center pulse.
!!Attention 760us can only be used with corresponding gyros/FBL systems!!!

Technical details:
Operating voltage [V]: 8.4 - 13.0

Torque [kgf.cm]@8.4V: 24.0
Torque [kgf.cm]@12.0V: 28.0
Torque [kgf.cm]@13.0V: 30.0 Actuating

time [s/60°]@8.4V: 0.10
Actuating time [s/60°]@12.0V: 0.08
Actuating time [s/60°]@13.0V: 0.07

Width [mm]: 20.0
Length [mm]: 40.5
Height [mm]: 38.0
Weight [g]: 70.0

Motor type: Brushless
Frequency range: 760us/560Hz, 450us-1050us
Gear type: Steel
Bearing type: 2BB
Gearing: 25T-6
Servo type: Standard
Electronics: Digital
Position sensor: Potentiometer
Waterproof: No
Softstart: Programmable
Programmable: Yes
Manufacturer: KST
Programmable with KST-Tool #3 and KST-Tool #5.

Please note the servo specification of the model manufacturer when selecting the servos.

Characteristics

Recommended for thermal gliders up to max. 500 g take-off weight
Optimized for F3K, F5K and RES models

KST delivers once again with the world beating KST X06 V6, a new 7 mm thin servo weighing only 6.4g. Perfect for discus launched gliders (DLGs) and many smaller models. The incredibly slim casing is crafted from 7075 aluminium alloy, so not only do these servos look fantastic but they are also very rigid and robust. The new V6 version has the same great specifications as the old servo, but is also programmable using a PC based or a press-button programming tool.

The KST X06 has a hardened steel drive train and a coreless motor capable of running all the way from 3.8V to 8.4V (1S to 2S LiPo) making these WV (wide voltage range) servos will deliver the power and reliability you need. Although some say this tiny servo is too small for 1.5m DLG aileron surfaces it actually has more torque on 2S LiPo than a KST X08 has on a 1S battery.

The accessories include four strong nylon output arms, two double sided, and two single sided, one of which is low profile. This means that when the servos are mounted one in front of the other the control rod of the front one won't foul the rear one.


KST X06 Features

• Ultra slim 7 mm body
• Compact and light weight design
• Good torque and speed
• Wide 1S to 2S LiPo voltage range
• Excellent heat dissipation
• 7075 Alloy casing
• Hardened Steel gears
• Designed for lightweight high performance RC Gliders

Specification

Rated Voltage: DC3.8V-8.4V
Torque: 0.8Kgf.cm@3.8V, 1.5Kgf.cm@6.0V, 1.8Kgf.cm@8.4V
Rated Torque: 4N.cm@6.0V
Stalling Current 0.58A@6.0V
Rated Current 0.22A@6.0V
Speed: 0.12sec/60°@3.8V, 0.08sec/60°@6.0V, 0.07sec/60°@8.4V
Rated Speed: 0.20sec/60°@6.0V
Default Travel Angle: ±60° = 120° Total
Operating Temperature Range: -20℃……+65℃
Case Dimensions: 20mm*7mm*16.6mm±0.1mm
Weight: 6g±10%
Motor: Coreless motor
Ball Bearing: 2BB

KST X10 High voltage Softstart wing Servo - 11Kg.cm 0.10s 28g 10mm

More power, new electronics, new engine, even better resetting accuracy. Upper part made of AI7075. The X10 is a new servo of the X series and the advancement of the KST DS225-MG-HV. The X10 differs from the DS225 by a new electronics with even better resetting accuracy. The motor of the KST X10 servo can be loaded with up to 10gk / cm. The upper part of the KST X10 is equipped with an Alloy Alloy Alloy 7070, which improves the durability and backlash in continuous operation clearly against the KST-DS225 MG. As with the KST X10 Mini, the KST X10 also uses a harder aluminum alloy on the upper part of the housing, which in turn further improves the freedom of play in the long run. Please note the servo recommendation of the respective model manufacturer when selecting your servos.
Features

    Operation Voltage (rated): DC7.4V
    Operation Voltage Range: DC6.0V-8.4V
    Torque: 7.5Kg.cm@6.0V 9.5Kg.cm@7.4V, 10.8Kg.cm@8.4V
    Speed: 0.14sec/60°@6.0V, 0.12sec/60°@7.4V, 0.10sec/60°@8.4V
    Travel Angle: ± 50 ° when 1000-2000us
    Operating Temperature Range: -20 ℃ ...... + 65 ℃
    Case Material: Aluminum Alloy
    Engine Type: Coreless
    Gear Set: Hardened Steel
    Position Sensor: Potentiometer
    Position Feedback: Optional
    Shielded Connecting: Cable 26AWG
    Case Dimensions: 30 * 10 * 35.5mm
    Weight: 28g 

The KST X12-508 is perfect for helicopters such as the Goblin 380/420, but also for small 3D planes and gliders. As with the KST X10, the upper part of the housing of the KST X12-508 also consists of a harder aluminum alloy, which improves play-free operation.

Technical details:

• Operation Voltage(rated) 7.4V
• Operation Voltage Range 4.8V-8.4V
• Torque: 4.2Kg.cm@6.0V, 5.2Kg.cm@7.4V, 6.20Kg.cm@8.4V
• Speed: 0.09sec/60°@6.0V, 0.08sec/60°@7.4V, 0.07sec/60°@8.4V
• Weight: 20g
• Dimensions: 23 x 12 x 27.5mm
• Bearing: 2BB
• Potentiometer
• Non-waterproof

Everything you ever wanted in a micro servo! Presenting you the new, revised, and innovative X12-708 Micro DC brushless servo. It’s now possible to program and tune a micro servo to your liking. The new design provides a strong, faster, and more efficient servo. This makes it possible to reach torque of up to 9.3 kg.cm and speed down to 0.07 sec/60deg. The down-toned wires apply a much sleeker and even more modern look. This concludes other amazing X12 servos in the KST family.

Great for fuselage installations on F3J, F3F, and F3B models. Awesome for size 380/420 helis as a cyclic servo.

Features

• Brushless DC motor
• Programmability
• Monster torque of 9.3 Kgf.cm
• Speeds down to 0.07 sec/60deg
• Hardened Steel Gear
• Black CNC aluminum case
• Dark toned wiring
• Cyclic Servo for 450-size helicopter

Specification

• Item: X12-708 Brushless Micro Servo
• Rated voltage: DC7.4V
• Voltage Range: DC6.0V-8.4V
• Torque: 6.3Kgf.cm@6.0V, 8.6Kgf.cm@7.4V, 9.3Kgf.cm@8.4v
• Speed: 0.09sec/60°@6.0V, 0.08sec/60°@7.4V, 0.07sec/60°@8.4V
• Working Frequency: 1520μs/333Hz (Default), 760μs/560Hz (Programming Tool Required)
• Default Travel Angle: ±50°= 100°Total
• Temperature Range: -20℃......＋65℃
• Soft Start: Programable
• Programmable: Yes
• Case Material: Aluminum Alloy
• Motor Type: Brushless DC Motor
• Gear Set Material: Hardened Steel
• Position Sensor: Potentiometer
• Case Dimensions: 23mm*12mm*27.5mm±0.2mm
• Weight: 20g±10%

Package Including

• 1 * X12-708 Brushless Micro Servo
• 1 Pack of Accessories

KST X15-1208 Mini Size Digital Servo is a great choice for helicopters ranging from 430mm-570mm rotor blade size requiring mini servos such as the Align T-Rex 500, Mikado Logo 480, MSH Protos 500, and SAB Goblin 570. Additionally these servos can be used in other RC applications where the physical dimensions, and torque/speed ratings suit the need of the RC application.

Features

• Hardened Steel Gears
• Extreme Torque and Excellent Speed
• CNC Aluminium Case
• Two Ball Bearings

Specification

• Operating Voltage: 6-8.4V
• Size: 35.5*15*32.5mm
• Torque: 9.8Kg.cm@6.0V, 12Kg.cm@7.4V, 13.5Kg.cm@8.4V
• Speed: 0.10sec/60@6.0V, 0.08sec/60 @7.4V, 0.07sec/60@8.4V
• Weight: 40g
• Working Frequency: 1520us/333Hz, 800us - 2200us
• Motor: Coreless
• Ball Bearing: 2BB
• Output Gear: 25T Futaba

The KST X15-1809 Mini Digital Metal Gear High Voltage Servo is a great choice for helicopters ranging from 430mm-570mm rotor blade size requiring mini servos such as the Align T-Rex 500, Mikado Logo 480, MSH Protos 500, and SAB Goblin 570. Additionally these servos can be used in other RC applications where the physical dimensions, and torque/speed ratings suit the need of the RC application.

Features

• Hardened Steel Gears
• Extreme Torque and Excellent Speed
• CNC Aluminium Case
• Two Ball Bearings
• Support High Voltage 8.4V
• Programmable Via Programming Card

Specification

• Item: X15-1809 Digital Servo
• Rated Voltage: DC7.4V
• Voltage Range: DC6.0V-8.4V
• Torque: 18Kgf.cm@6.0V, 22Kgf.cm@7.4V, 24Kgf.cm@8.4V
• Speed: 0.09sec/60°@6.0V, 0.08sec/60°@7.4V, 0.07sec/60°@8.4V
• Working Frequency: 1520μs/333Hz (Default), 760μs/560Hz (Programming Tool Required)
• Default Travel Angle: ±50° = 100° Total
• Temperature Range: -10℃……+65℃
• Soft Start: Programable
• Programmable: Yes
• Case Material: Aluminum Alloy
• Motor Type: Brushless DC Motor
• Gear Set Material: Hardened Steel
• Position Sensor: Potentiometer
• Ball Bearing: 2 Ball Bearings
• Case Dimensions: 35.5mm*15mm*35.5mm±0.2mm
• Weight: 45g±10%

Package Including

• 1 * X15-1809 Servo For Helicopters Fuselage
• 1 Pack of Accessories

KST X15-755X Mini Size Digital Servo is a great choice for helicopters ranging from 325mm-425mm rotor blade size requiring mini servos on the tail rotor! It's critical to ensure your gyro has the capability to operate 760uS Tail Servos, ensuring that the KST X15-755 operates correctly

Features:

• Mini size aluminum case
• Full metal gears
• Dual ball bearings
• HV compatible
• Lightning fast
• Coreless motor
• Narrow Pulse - 760uS - Helicopter Tail
  

Specifications:
Operating Voltage: 6-8.4V
Size: 35.5x15x32.5mm
Pulse Width: 760uS
Torque: 7.2kg.cm @ 6.0V; 10.2kg.cm @ 8.4V
Speed: 0.06sec/60° @ 6.0V; 0.04sec/60° @ 8.4V
Weight: 40g
Working Frequency: 760us/560Hz
Motor: Coreless
Ball Bearing: 2BB

KST X15-855X Mini Brushless Tail Servo 760us 15.3kg/cm @8.4 0.050s: high end servo from  for Tail, mini size 35mm, Brushless

• Rated Voltage: DC7.4V
• Voltage Range: DC6.0V-8.4V
• Working Frequency:  760us/560Hz
• Temperature Range: -10℃……+65℃
• Case Material: Aluminum Alloy
• Motor Type: Brushless DC Motor
• Gear Set Material: Hardened Steel
• Ball Bearing: 2 Ball Bearings
• Case Dimensions: 35.5mm*15mm*35.5mm±0.2mm
• Torque: 10.2KG@6.0V/ 13.2KG@7.4V/ 15.3KG@8.4V
• Speed: 0.07sec/60°@6.0V; 0.06sec/60°@7.4V; 0.05sec/60°@8.4V
• Weight: 45g

Suitable for: Goblin 570, 630, 650, 700,770, T-REX 550, 600, 700, Mikado LOGO 550, 600, 700, 800, MSH PROTOS 700 MAX, SOXOS 550, 600, 700

We always delivering the latest version, so regardless its not written, it will be the case.

The KST X20 Helicopter Servo Pack includes three  X20-2208 Cyclic Servos, and one  X20-1035 Tail Servo. The X20 Servos feature a brushless motor, full CNC aluminum case, and a complete set of Titanium gears through out each servo. The cyclic servos boast an incredible 347 oz/in (25kg.cm) of torque at 8.4V, and a crisp 0.07 speed. The tail servo offers 166oz/in of torque at a blistering fast 0.03 speed at 8.4V

The developers at KST ensured nothing but the best components were utilized during construction of this servo, components as large as motors and gears, materials for the servo case,and small components such as the PCB board driving the motor. EMF currents in common DC voltage applications can generate large EMF spikes under operation, which can wreak havoc on other connected electronics. X20 servos feature a PCB board which minimizes EMF spikes, protecting other electronics from having to filter out the noise

Package including:

X20 HLS Combo 3x X20-2208 HLS V8.0 / 1x X20-1035 HLS V3.0"

Technical data.

KSTX20-2208 V8.0 HLS

Operating voltage (max.) [V]: 6.0-8.4

Stalling Torque[kg.cm]@4.8V: --

Stalling Torque[kg.cm]@6.0V: 18.4

Stalling Torque[kg.cm ]@7.4V: 22.4

Stalling Torque[kg.cm]@8.4V: 25.5

Actuation time [s/60°]@4.8V: -- Actuation time

[s/60°]@6.0V: 0.090

Actuation time [s/60°] @7.4V: 0.080

Operating time [s/60°]@8.4V: 0.070

Width [mm]: 20.0

Length [mm]: 40.0

Height [mm]: 40.0

Weight [g]: 72.0

Motor type: Brushless

Frequency range: 1520us/333Hz, 900us-2100us

Gear type: hardened steel

Bearing type: 6BB

Gearing: 25T-6

Servo type: Standard

Electronics: Digital

Position sensor: Potentiometer

Waterproof: No

Soft start: Programmable

Manufacturer: KST

KSTX20-1035 V3.0 Technical details:

Operating voltage (max.) [V] : 6.0-8.4

Stalling Torque[kg.cm]@4.8V: --

Stalling Torque[kg.cm]@6.0V: 9.2

Stalling Torque[kg.cm]@7.4V: 11.2

Stalling Torque[kg.cm]@8.4 V: 12.2

Actuating time [s/60°]@4.8V: --

Actuating time [s/60°]@6.0V: 0.040 Actuating

time [s/60°]@7.4V: 0.035 Actuating

time [s/60°]@8.4V : 0.030

Width [mm]: 20.0

Length [mm]: 40.0

Height [mm]: 40.0

Weight [g]: 72.0

Motor type: Brushless

Frequency range: 760us/560Hz

Gear type: Steel

Bearing type: 6BB

Gearing: 25T-6

Servo type: Mini

Electronics: Digital

position sensor: Potentiometer

Waterproof: No

Manufacturer: KST

KST X20-1035 HV Brushless Servo - 12Kg.cm 0.03s 70g 20mm

The developers at KST have ensured that nothing but the best components are used during the construction of this servo, components as large as motors and gears, materials for the servo housing and small components such as the PCB driving the motor. EMF currents in common DC voltage applications can generate large EMF spikes during operation, which can wreak havoc on other connected electronics. X20 servos feature a PCB that minimizes EMF spikes, protecting other electronics from having to filter out the noise

Features:

Standard size aluminum case
Low EMF design
Full metal gears
Dual ball bearings
HV compatible

It is an amazingly fast yet powerful and precise metal cased high voltage servo designed to be run directly from a 2S LiPo without needing a regulator.

KST also advise unlike any other servo, the X20 generates no counter EMF in any working conditions. It has an all-new design of circuit board, so your heli flybarless system and receiver will not be interfered with and will not display any weird behavior as a result.

In addition to the four heavy duty plastic output arms, which are similar to futaba 25T splines, the servo is supplied with two attractive red anodized aluminum arms with M2 threaded holes.

The extreme reliability and performance of these servos also makes them very suitable for use in film and motion picture industry special effect departments. They are also used in robotic, drone, UAV, UAS, academic research, military, and other highly demanding applications.

Specification:

Case dimensions: 40.5 x 20.2 x 36.3 mm
Stall torque (6V): 8.5 kg.cm 118 oz.in
Stall torque (7.4 V): 10.3 kg.cm 143 oz.in
Stall torque (8.4 V): 12 kg.cm 167 oz.in
Weight: 70 g 2.47 oz
Leash length: 31 cm 12.3 in
Operating speed (6 V): 0.040 sec / 60 °
Operating speed (7.4 V): 0.035 sec / 60 °
Operating speed (8.4 V): 0.030 sec / 60 °
Operating voltage: 6.0 V to 8.4 V
Bearings: 2 ball bearings
Gear material: Metal
Housing material: Metal
Motor type: Brushless
Working frequency: 560 Hz
Pulse width: 900 - 2100 µs
Digital: Yes
Programmable: no

KST X20-2208MG HV Brushless Servo - 25Kg.cm 0.07s

The KST X20-2208MG HV Brushless servo is the brother of the X20-1035 but offers much greater torque. Being brushless it represents a new revolution in servo design. It offers significantly longer life operation, with a superior power to weight ratio, contributing to a reduced motor burn-out susceptibility. The servo features a nicely machined metal case and offers high voltage capability, designed to be run directly from a 2S LiPo without needing a regulator.

This servo is perfect for cyclic on 550 - 800 class helicopters.

KST also advise unlike any other servo, the X20 generates no counter EMF in any working conditions. It has an all-new design of circuit board, so your heli flybarless system and receiver will not be interfered with and will not display any weird behavior as a result.

In addition to the four heavy duty plastic output arms the servo is supplied with two attractive red anodized aluminum arms with M2 threaded holes.

The extreme reliability and performance of these servos also makes them very suitable for use in film and motion picture industry special effect departments. They are also used in robotic, drone, UAV, UAS, academic research, military, and other highly demanding applications.

Specification:

Operating Voltage: DC 6.0V-8.4V
Size: 40.50*20*38mm
Torque: 25Kg.cm @8.4V//22Kg.cm @7.4V//18Kg.cm @6.0V  
Speed: 0.09sec/60° @8.4V// 0.08sec/60° @7.4V  // 0.07sec/60° @ 6.0V    
Weight: 72g
Working Frequency: 1520us/333Hz
Motor: Brushless    
Ball Bearing: 2BB

KST X20-2208MG HV Brushless Servo - 35Kg.cm 0.07s 69g 20mm

The KST X20-2208MG HV Brushless servo is the brother of the X20-1035 but offers much greater torque. Being brushless it represents a new revolution in servo design. It offers significantly longer life operation, with a superior power to weight ratio, contributing to a reduced motor burn-out susceptibility. The servo features a nicely machined metal case and offerers high voltage capability, designed to be run directly from a 2S LiPo without needing a regulator.

The servo is approx standard size and has an output spline the same as similar Futaba servos, so many compatible output arms are available. At 20mm thick and an impressive 35 kg.cm torque the KST X20-2208 is appropriate for all fast large gliders, jets and helicopters on surfaces requiring very high speed response. This servo is perfect for cyclic on 550 - 700 class helicopters.

KST also advise unlike any other servo, the X20 generates no counter EMF in any working conditions. It has an all-new design of circuit board, so your heli flybarless system and receiver will not be interfered with and will not display any weird behavior as a result.

In addition to the four heavy duty plasic output arms the servo is supplied with two attractive red annodised aluminium arms with M2 threaded holes.

The extreme reliability and performance of these servos also makes them very suitable for use in film and motion picture industry special effect departments. They are also used in robotic, drone, UAV, UAS, academic research, military, and other highly demanding applications.

.Specification:

• Servo Type: Digital
• Gear Type: Metal
• Stall Torque: 18Kg.cm@6V, 22Kg.cm@7.4V, 25Kg.cm@8.4V
• Speed: .o9sec/60°@6V, .08sec/60°@7.4V, .07sec/60°@8.4V
• Voltage Rating: 6V to 8.4V
• Dimensions: 40.5 mm wide x 20 mm thick x 38 mm high
• Weight: 72g / 2.53oz

In order to guarantee the maximum operating reliability, particularly high quality brushless motors are used in these servos.

The KST brushless HV X20-3012 servo has a torque of 300N/cm and a positioning speed of 0,12s/60° at 7.4 Volt. This servo is perfect for giant scale and jet models, where power, positioning speed and an accuracy of setting back to initial position are absolutely required.

Features:

Rated Voltage: DC7.4V

Operating Voltage: DC6.0V-8.4V

Torque: 35Kgf.cm@8.4V / 30Kgf.cm@7.4V / 25Kgf.cm@6.0V

Speed: 0.11sec/60°@8.4V / 0.12sec/60°@7.4V / 0.15sec/60°@6.0V

Working Frequency: 1520μs/333Hz

Default Travel Angle: ±50° =100° Total

Temperature Range: -10℃.......+65℃

Case Material: Aluminum Alloy

Position Sensor: Potentiometer

Motor: Brushless DC Motor

Gear Set Material: Hardened Steel

Size: 40.5mm*20mm*38mm±0.2mm

Weight: 72g±10%

Ball Bearing: 2BB