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Kavan GO-12S57MG (0.070s/60°, 20kg.cm) KAV20.12S57MG

Kavan GO-12S57MG (0.070s/60°, 20kg.cm) KAV20.12S57MG

Kavan GO-12S57MG (0.070s/60°, 20kg.cm) KAV20.12S57MG

High torque/very high speed programmable digital low profile standard servo 57g with a brushless motor, hardened steel gears and wide input voltage range 4.8–8.4 V, 2×BB; ideal for 1:10/1:12 on-road RC cars, planes and helicopters. Torque 14.0 kg.cm, speed 0.105 s/60° at 4.8 V, torque 17.0 kg.cm, speed 0.090 s/60° at 6.0 V, torque 19.5 kg.cm, speed 0.080 s/60° at 7.4 V, torque 20.0 kg.cm, speed 0.070 s/60° at 8.4 V. Aluminium case w. CNC-milled heatsink for perfect cooling under high load. Dimensions 40.8×20.2×26.5 mm, weight 57,2 g.


High torque/very high speed standard low profile digital servo with a brushless motor and double BB-ed output shaft for general use in all kinds of RC models - great for 1:10/12 on-road RC cars, as well as model aeroplanes and helicopters. An aluminium case with a middle CNC-milled heatsink for perfect cooling under high load.

GO-12S57MG is programmable using the KAVAN GO servo USB programmer/interface and PC software.

Programmable Functions

  • Servo Angle: Maximal servo rotation angle range setting. The default range is ca 120° within the regular RC signal pulse width range (900~2100 µs); ca 180° within the max. signal pulse width range (500~2500 µs).
  • Servo Neutral: Servo neutral (centre) position setting.
  • Damping Factor: Servo damping setting – adjust the characteristics of the servo when stopping.
  • PWM Power: Adjusts the servo output power. The higher the power, the higher the speed and torque of the servo – indeed also the current consumption will be higher.
  • Sensitivity: Servo sensitivity (Dead Band) setting. The higher the sensitivity the narrower the dead band – servo moves only if the change of the signal pulse width is bigger than the dead band width. Too high a setting may cause servo jitter in some applications. Range: Ultra High (ca 1 µs dead band) – High (ca 2 µs) – Medium (ca 3 µs) – Low (ca 4 µs)
  • Soft Start: Turns on/off the soft start feature. If ON, the servo goes slowly to the initial position corresponding to the servo signal once the power is switched on.
  • Reverse: Reverses the servo movement direction.
  • Narrow Band: FUTABA SR Mode – only for use with FUTABA radio channels working in the SR mode. Do not turn the option on if you are using a different setting of your FUTABA radio or any other radio.
  • SANWA SSR: SANWA SSR Mode - only for use with SANWA radio channels working in the SSR mode. Do not turn the option on if you are using a different setting of your SANWA radio or any other radio.
  • Lost PPM Protection (Fail-Safe): In the case the control signal from the receiver is lost completely or cannot be decoded correctly (due to interference) the servo can use choose one of three fail-safe modes:
    • (a) Release: No fail-safe protection.
    • (b) Keep Position: Keeps the position corresponding to the last correct control signal.
    • (c) Go Neutral Position: The servo returns to the neutral (1500 µs pulse width) position.
  • Over Load protection: Enables or disables overload protection of the servo in three levels – once the overload conditions last for the pre-set time (in seconds), the output power of the servo is reduced to the corresponding pre-set level (% of the max. power).
  • Default: Restores the factory default setting of the connected servo.

Wide input voltage range 4.8–7.4 V (nominal), operational 4.8–8.4 V.

25T/5.92 mm output shaft.

Servo dimensions Standard
Servo type Digital
Programmable Yes
Torque at 4.8V [kg∙cm] 14
Torque at 6.0V [kg∙cm] 17
Torque at 7.4V [kg∙cm] 19.5
Torque at 8.4V [kg∙cm] 20
Speed at 4.8V [s/60st.] 0.105
Speed at 6.0V [s/60st.] 0.09
Speed at 7.4V [s/60st.] 0.08
Speed at 8.4V [s/60st.] 0.07
Servo gears Metal
Ball bearings
High-voltage Yes
Power supply [V] 4.8 - 8.4
Length [mm] 40.2
Width [mm] 20.2
Height [mm] 26.5
Weight [g] 57.2
Intended for Aeroplanes,Helicopters,On-road cars
Water resistance No



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