Digital Servos

Utilizes brushless motor design for fast speed, high efficiency. And with the absence of brush wear, the longevity of servo is greatly increased.
Supports 8.4v high voltage to provide optimal speed and torque performance of the brushless servo.
Designed specifically for helicopters, with highest specifications on the market: 0.058sec/60°ultra fast speed and 23kg-cm monstrous torque, allowing helicopter to perform with faster and higher precision.
Ultra high 12 bits signal resolution for excellent precision and smoothness.
Hardened high strength superalloy gears that increase the lifetime.
Brand new high voltage brushless servo equipped new CNC machined aluminum case, not only exhibited top of the line servo aesthetics, but also combine heat sink function and best protection for the servo.
Supports both analog and digital control signals.
Suitable for T-Rex 550/600/700/800 cyclic and rudder use.

SPECIFICATIONS

• Stall torque:17kg.cm(6.0V)
• Stall torque:22kg.cm(7.4V)
• Stall torque:0.058g.cm(8.4V)
• Motion speed:0.08sec/60°(6.0V)
• Motion speed:0.06sec/60°(7.4V)
• Motion speed:0.058sec/60°(8.4V)
• Rating voltage:DC 4.8-8.4V
• Temperature range:-20°C~+60°C
• Dimension:40.3 x 20.1 x 38.7mm
• Weight:80g

T-Rex 250/470 CCPM cyclic use.

Features:

• Faster speed with high torque performance, allowing helicopter to perform with faster and higher precision.
• High rigidity, shock resistant metal gears with high strength composite alloy gears with durable structure characteristics.
• Aluminum alloy mid case construction for instantaneous heat dissipation, maintaining servos high efficiency.
• Supports digital and analog control signal.
• Powerful and precise servo.

Specifications:

• Stall torque: 3.0kg/cm (6.0V), 4.0kg/cm (8.4V)
• Motion speed (60°): 0.06sec (6.0V), 0.05sec (8.4V)
• Rating voltage: DC 6.0V - 8.4V
• Temperature range: -20°C ~ +60°C
• Dimension: 23x12x31.3mm
• Weight: 17.5g

Content:

• 1x DS450 Digital Servo

Align DS820 High Voltage Brushless Servo

Designed specifically for helicopters,utilizes brushless motor for fast speed, high torque and super efficiency reaction, allowing helicopter to perform with faster and higher precision. Brand new high voltage brushless servo equipped new CNC machined aluminum case, not only exhibited top of the line servo aesthetics, but also combine heat sink function and best protection for the servo.
Utilizes brushless motor design for fast speed, high efficiency. And with the absence of brush wear, the longevity of servo is greatly increased.
Supports 8.4v high voltage to provide optimal speed and torque performance of the brushless servo.
Designed specifically for helicopters, with highest specifications on the market: 0.055sec/60°ultra fast speed and 23kg-cm monstrous torque, allowing helicopter to perform with faster and higher precision.
Ultra high signal resolution for excellent precision and smoothness.
Hardened high strength superalloy gears that increase the lifetime.
Supports both analog and digital control signals.

Suitable for T-Rex 550/600/700/800 cyclic and rudder use.

Stall torque: 22kg.cm(7.4V)
23kg.cm(8.4V)
Motion speed: 0.06sec/60°(7.4V)
0.055sec/60°(8.4V)
Rating voltage: DC 7.4-8.4V
Temperature range: -20°C ~ +60°C
Dimension: 40 x 20 x 39mm
Weight: 70g

Accessories:
DS820 High Voltage Brushless Servo x 1
Servo Arm x 1
DS615/655 Servo Arm Set x 1
Socket Botton Head Screw x 4(M2.5x10mm)

Align DS820M High Voltage Brushless Servo

Designed specifically for helicopters,utilizes brushless motor for fast speed, high torque and super efficiency reaction, allowing helicopter to perform with faster and higher precision. Brand new high voltage brushless servo equipped new CNC machined aluminum case, not only exhibited top of the line servo aesthetics, but also combine heat sink function and best protection for the servo.
Utilizes brushless motor design for fast speed, high efficiency. And with the absence of brush wear, the longevity of servo is greatly increased.
Supports 8.4V high voltage to provide optimal speed and torque performance of the brushless servo.
Designed specifically for helicopters, with highest specifications on the market: 0.055sec/60° ultra fast speed and 23kg-cm monstrous torque, allowing helicopter to perform with faster and higher precision.
Ultra high signal resolution for excellent precision and smoothness.
Hardened high strength superalloy gears that increase the lifetime.
Supports both analog and digital control signals.
Suitable for T-Rex 550/600/700/800 cyclic and rudder use.

Specifications:

• Stall torque: 22kg.cm (7.4V) / 23kg.cm (8.4V)
• Motion speed: 0.06sec/60° (7.4V) / 0.055sec/60° (8.4V)
• Rating voltage: DC 7.4V - 8.4V
• Temperature range: -20°C ~ +60°C
• Dimension: 40x20x39mm
• Weight: 80g

Dynam Tomcat servo
For RC Plane Airplane Aircraft Helicopter
RC hobby
Detrum 3.7g Servo
DY-1100 Servo

The RJX FS0391THV provides the ultimate in performance for Midi tail servos. Cranking out a whopping 10.6kg and 0.03sec transit speed @ 8.4V, you will be hard pressed to find a better servo for your money. The massive torque and lightning fast speed makes this servo ideal for use in 3D helicopters as a cyclic or tail servo, scale airplanes and even large cars/trucks. The entire gear train is metal, making stripped gears virtually impossible. The case is machined from aluminum alloy providing the ultimate in durability and offering excellent heat dissipation.

The FS0391HV is a true high-voltage servo capable of operating at a constant 8.4V, yet still yields impressive numbers at as low as a 6V input. This makes it a very versatile servo which can be used in many different applications.

A full set of servo hardware is included, as well as an alloy servo arm ideal for use with helicopter cyclic servo applications.

Digital HV MIDI Tail Servo size made in Taiwan.
Special Narrow Band version for Cyclic or Tail servo used in Helicopters.
Full Metal Gears
Full Aluminum Alloy Case
with Standard Size fitting

Operation Voltage:6V-8.4V
Weight:50g(1.7oz)
Torque:8.4kg/cm(116.7oz/in)@6V
  9.6kg/cm(133.3oz/in)@7.4V
  10.6kg/cm(147.2oz/in)@8.4V

Speed :0.035(sec/60°)@6V
  0.032(sec/60°)@7.4V
  0.03(sec/60°)@8.4V

Dimension:15x36x35.5mm (W x L x H)
Frequence:760µs/333hz
Gear Type:Metal Gear
Motor Type:Coreless Motor

Package Info:

High Performance Servo with Brushless Motor (Neutral Pulse Width: Default 1520μs, optional 760μs) 

For all-purpose giant scale airplanes and Helicopters

FEATURES:

• Suitable for all purpose RC helicopters.
• Programmable/HV Brushless Servo.
• Custom New high power Brushless Motor.
• Programmable and compatible with S.Bus and S.Bus2 systems.
• Can be connected to a PC using the CIU-2/-3 USB adapter sold separately.
• Upper/middle/bottom: Aluminum Case
• 2S LiPo Suitable

SPEED:
0.075 sec/60°at 6.6V
0.07 sec/60° at 7.4V

TORQUE:
41.0 kgf/cm at 6.6V
569.4 ozf/in at 6.6V
44.0 kgf/cm at 7.4V
511.1 ozf/in at 7.4V

SIZE:
40.5 mm x 21 mm x 37.8 mm
1.59 in x 0.83 in x 1.49 in

WEIGHT:
76 g
2.68 oz

RATED VOLTAGE:
DC 6.0V-7.4V

OPERATING VOLTAGE:
DC 4.8-8.4V

NO DRY BATTERY OR BEC USE

FEATURES:

• Suitable for all purpose RC helicopters.
• Programmable/HV Brushless Servo.
• Custom New high power Brushless Motor.
• Programmable and compatible with S.Bus and S.Bus2 systems.
• Can be connected to a PC using the CIU-2/-3 USB adapter sold separately.
• Upper/middle/bottom: Aluminum Case
• 2S LiPo Suitable

SPEED:
0.08 sec/60°at 6.6V
0.075 sec/60° at 7.4V

TORQUE:
18.0 kgf/cm at 6.6V
250.0 ozf/in at 6.6V
20.0 kgf/cm at 7.4V

SIZE:
40.5 mm x 21 mm x 37.8 mm
1.59 in x 0.83 in x 1.49 in

WEIGHT:
73 g
2.57 oz

RATED VOLTAGE:
DC 6.0V-7.4V

OPERATING VOLTAGE:
DC 4.8-8.4V

NO DRY BATTERY USE

Jeti Digital Servo High voltage & torque DSHV 3D13T (13kg)

The J3D13T is a precise full-metal digital servo for large models. "Mini" size.

• High torque and speed
• High voltage
• Precision metal gearbox
• Ball bearings
• Watter proof
• Aluminium case

Specification:

• Weight [g]     39,7
• Supply Voltage [V]     3.8 > 8.4
• Torque (6V) [kg/cm]     10.5
• Torque (7.4V) [kg/cm]     13
• Torque (8.2V) [kg/cm]     14
• Speed (6V) [s]     0.17
• Speed (7.4V) [s]     0.14
• Speed (8.2V) [s]     0.13
• Max. current (7.4V) [A]     2.4
• Motor     Coreless DC
• Waterproof     Yes
• Ball bearings     2
• Gearbox material     metal
• Compatible horn (Ø6mm)     Futaba

Jeti Digital Servo High voltage DSHV 4A18.5T (18.5kg)

The J4A18.5T is a precise full-metal digital servo for large models. Standard size.

• High torque and speed
• High voltage
• Precision metal gearbox
• Ball bearings
• Watter proof
• Aluminium case

Specification:

• Weight [g]     74
• Supply Voltage [V]     4.8 > 8.4
• Torque (6V) [kg/cm]     15
• Torque (7.4V) [kg/cm]     18.5
• Torque (8.2V) [kg/cm]     20.5
• Speed (6V) [s]     0.10
• Speed (7.4V) [s]     0.08
• Speed (8.2V) [s]     0.07
• Max. current (7.4V) [A]     5.8
• Motor     BLCD
• Waterproof     Yes
• Ball bearings     2
• Gearbox material     metal
• Compatible horn (Ø6mm)     Futaba

Jeti Digital Servo High voltage HV DSHV 3D8.5T (8.5kg)

The J3D8.5T is a precise full-metal digital servo for large models. "Mini" size

• High torque and speed
• High voltage
• Precision metal gearbox
• Ball bearings
• Watter proof
• Aluminium case

Specification:

• Weight [g]     39,7
• Supply Voltage [V]     3.8 > 8.4
• Torque (6V) [kg/cm]     6.9
• Torque (7.4V) [kg/cm]     8.5
• Torque (8.2V) [kg/cm]     9.5
• Speed (6V) [s]     0.12
• Speed (7.4V) [s]     0.10
• Speed (8.2V) [s]     0.09
• Max. current (7.4V) [A]     2.4
• Motor     Coreless DC
• Waterproof     Yes
• Ball bearings     2
• Gearbox material     metal
• Compatible horn (Ø6mm)     Futaba

Jeti Digital Servo High voltage HV DSHV 4A23T (23kg)

The J4A23T is a precise full-metal digital servo for large models. Standard size.

• High torque and speed
• High voltage
• Precision metal gearbox
• Ball bearings
• Watter proof
• Aluminium case

Specification:

• Weight [g]     74
• Supply Voltage [V]     4.8 > 8.4
• Torque (6V) [kg/cm]     18.5
• Torque (7.4V) [kg/cm]     23
• Torque (8.2V) [kg/cm]     25
• Speed (6V) [s]     0.15
• Speed (7.4V) [s]     0.12
• Speed (8.2V) [s]     0.11
• Max. current (7.4V) [A]     5.8
• Motor     BLCD
• Waterproof     Yes
• Ball bearings     2
• Gearbox material     metal
• Compatible horn (Ø6mm)     Futaba

Low profile programmable digital servo.

Speed: 0.10 sec /60
Torque: 118 oz-inch (8.5Kg-cm)
Size : 41x21x25.4mm
Weight : 44.8gr

KST BLS805X Servo is excellent due to the aluminum housing and the solid metal gear. The high positioning speed and the highly accurate setting back to the initial position allow optimal performance in 3D helicopter aerobatics. It is speedy because of the neutral impulse of 760µs and a possible frequency of 560Hz.

Features

• Extreme Torque and Excellent Speed
• CNC Aluminium Case
• Brushless DC Motor
• Dual Ball Bearings
• Ideal for Heli 550-700

Specification

• Item: BLS805X HV Brushless Tail Servo
• Operating Voltage: DC6.0V-8.4V
• Dimension : 40.5mm*20mm*38mm±0.2mm
• Torque: 5.5Kgf.cm@6.0V, 6.5Kgf.cm@7 .4V, 7. 5Kgf.cm@8.4V
• Speed: 0.048sec/60° @6.0V, 0.042sec/60°@7.4V, 0.039sec/60°@8.4V
• Temperature Range: -10℃……+65℃
• Weight: 70g±10%
• Working Frequency: 760μs/560Hz
• Case Material: Aluminum Alloy
• Motor Type: Brushless DC Motor
• Position Sensor: Potentiometer
• Ball Bearing: 2BB

Package Includes

• 1 * BLS805X HV Servo
• 5 * Plastic Servo Horn
• 1 * Servo Horn Screw
• 4 * Rubber Grommet
• 4 * Eyelet
• 4 * Mounting Screw

The KST BLS815 brushless servo, in a robust aluminum housing with a precision steel gearbox, is a power hunter among the servos. High-quality workmanship, speedy positioning times and perfect resetting accuracy make the servo universally applicable.

Features

• Ultra High Torque & Excellent Speed
• Hardened Steel Gear
• CNC Aluminium Case
• High Quality Brushless Motor
• Dual Ball Bearings
• Ideal for 550-700 Class Helicopter Cyclic

Specification

• Item: BLS815 V8.0 Brushless Servo
• Rated Voltage: DC7.4V
• Voltage Range: DC6.0V-8.4V
• Torque: 14Kgf.cm@6.0V / 17Kgf.cm@7.4V / 20Kgf.cm@8.4V
• Speed: 0.09sec/60°@6.0V / 0.08sec/60°@7.4V / 0.07sec/60°@8.4V
• Working Frequency: 1520μs/333Hz
• Default Travel Angle: ±50°=100°when1000μs-2000μs
• Temperature Range: -10℃.......+65℃
• 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: 40.5mm*20mm*38mm ±0.2mm
• Weight: 70g±10%

Package Including

• 1 * BLS815 V8.0 Brushless Standard Servo
• 5 * Plastic Servo Horn
• 1 * Servo Horn Screw
• 4 * Grommet
• 4 * Eyelet
• 4 * Mounting Screw

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)

DS215MG HV servo is an amazingly powerful and fast metal cased high voltage servo designed to be run directly from a 2S LiPo without needing a regulator. With 3.7 kg.cm of torque, and a rotational velocity of 0.05 sec/60° it combines exceptional power with great precision and market leading speed.

Weighing only 20 g it is a great servo for glider elevator & rudder and heli cyclic & tail rotor. Also popular on RC EDF jets. The KST DS215MG HV is designed for use with a 2S LiFe or 2S LiPo battery. Do not use on a 5V supply. It is the high voltage replacement of the acclaimed KST DS115MG servo.

Specifications

• Item: DS215MG Micro Servo
• Operating Voltage: DC6.0V-7.4V
• Size: 23*12*27.50mm
• Torque: 3.70Kg.cm@7.4V / 3.10Kg.cm@6.0V
• Speed: 0.05sec/60°@7.4V / 0.06sec/60°@6.0V
• Weight: 20g
• Working Frequency: 1520us/333Hz, 800us-2200us
• Motor: Φ12mm Coreless
• Ball Bearing: 2BB

Package Including

• 1  DS215MG V8.0 Servo
• 1 Pack of Accessories

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 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.

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

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