KST Servo

KST original metal servo arm 25T standard servo rocker arm, suitable for a variety of 25T servos.

Main output gear teeth: 25T.

M3 thread holes.

Suitable for KST515MG, 725MG, 525MG, 815MG, 805X... Futaba, Savox, graupner... standard servos.

included: 1 arm, black color.

KST is a high-end servo manufacturer. It is among the first companies to have developed electronic chips for brushless servos in the world. Today, KST is one of the industry's two leading suppliers of brusless servo chips and remains a leader in this technology field by providing new designs and OEM equipment for the entire servo industry.
Most KST coreless servos use electric motors from Adamant Namiki japanese manufacturer, developed with KST.

We always deliver the last version, do dont look further.!

The reliability and extreme performance of KST servos make them very suitable for use in areas as different as the special effects of the film industry, robotics, professional drones, university research, military equipment and other demanding applications.

The KST BLS905X is a standard Digital HV Brushless servo designed for heli rudder use. Suitable for Class 550/600/700 helicopters.
Specifications:

Speed: 0,035s/60° (8,4V) / 0,040s/60° (7,4V) / 0,045s/60° (6V)
Torque: 8,0kg/cm (8,4V) / 7,0Kg/cm (7,4V) / 6,0Kg/cm (6,0V)
Voltage: 6V- 8,4V DC
Frequency: 760us/560Hz
Size: 40,5x20x37 mm
Motor type: brushless
Weight: 72g

The KST BLS915 Vx is a top class swashplate servo for 3D aerobatics. The BLS 915 is always the last version, so we are Up to date.

is absolutely robust thanks to the aluminum housing and the improved steel gearbox.

Due to the stronger brushless motor and more powerful electronics in conjunction with the hardened steel gearbox, the BLS915 Vx is clearly a class above the BLS815.
The new housing with cooling fins extends the temperature range of the servo to 65 ° C.
The high positioning speed in conjunction with the offered performance, the KST BLS915Vx HV is very well suited for advanced 3D helicopter pilots.
Ideal for helicopters of the 600 to 700 class.

Technical specifications:

Operating voltage: DC 6.0v-8.4v
Dimensions: 40.50 * 20 * 38mm

Torque:
25kg.cm @ 8.4v
22kg.cm @ 7.4v
18kg.cm @ 6.0v

Speed:
0.07sec / 60 ° @ 8.4v
0.08sec / 60 ° @ 7.4v
0.09sec / 60 ° @ 6.0v

Weight: 78g
Working Frequency : 1520us / 333hz
Engine: brushless
Ball Bearing: 2BB

The KST DS1509MG offers a wide voltage range of 4.8 - 7.4 Volt and is therefore universally applicable due to the low profile construction.

High positioning speed and the torque of up to 12.8Kg/cm  and 0.07sec at 7.4 V allow the use of the servo in both the aircraft model and the RC car area.

Specifications:

• Material: Metal
• Signal: Digital
• Operating voltage: DC 4.8-7.4V
• Connector wire: About 205mm
• Operating speed: 0.07sec / 60°@ 7.4V; 0.08 sec / 60° @ 6.0V; 0.10 sec / 60° @ 4.8V
• Stall torque: 12.8kg.cm @ 7.4V; 10.7kg.cm @ 6.0V; 8.5kg.cm @ 4.8V
• Working frequency: 1520us/333Hz, 900us-2100us
• Motor type: Coreless motor
• Bearing type: 2BB
• Programmable: YES
• Item size: 40.5*20*25.4mm
• Item weight: 55g (wires included)

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

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 original metal servo arm 25T standard servo rocker arm, suitable for a variety of 25T servos (single rudder arm, excluding screws and other accessories)

Main output gear teeth: 25T Main output gear outer diameter: 6MM

Suitable for KST standard size - such as 515MG, 725MG, 525MG, 815MG, 805X, Futaba , Savox, and other 25T spline standard servos

Fully Adjustable to the neutral point, double fixation, plastic structure in the middle, protects the gear of the servo.

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.

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.

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

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

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 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.  

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:

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

force[kg.cm]@4.8V: --
force[kg.cm]@6.0V: 9.2
force[kg.cm] @7.4V: 11.2

Positioning force[kg.cm]@8.4V: 12.2
Positioning time [s/60°]@4.8V: --
Positioning time [s/60°]@6.0V: 0.040
Positioning time [s/60°]@7.4 V: 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

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

Set of 4 Rubber grommets, and 4 brass Eyelets/Inserts for normal size servo.

Fit for 550-700 class helicopter tail servo.

Full Metal Gear CNC Aluminum Case
Dual Ball Bearing Operating Voltage: 6.0V - 7.4V
Size: 40.5mm X 20mm X 37mm

Torque: (6.0v/7.4v) : 5.5Kg.cm/6.50 Kg.cm

Speed:

• 0.05sec  @6.0V
• 0.045sec@7.4V
• 0.04sec  @8.4V

Working Frequency: 760us/ 333Hz
Weight: 68G 17mm Coreless Motor