KST MS325 Servo – 5.2Kg.cm 0.07s 20.0g 12mm

The new KST MS325 is a breakthrough servo. high reliability servo that uses Hall effect (magnetic) position sensoring to do away with the unreliable and limited life potentiometer (pot) that has been a thorn in the side of RC models until now. This advanced KST developed technology has the potential to revolutionise the RC servo industry, with servos no longer the least reliable part of the RC control system. This increased reliability will make these servos the preferred choice for all high value/high energy models, and for the UAV industry.

The KST MS320 has a good 5.2 Kg.cm torque with a really good 0.07 sec/60° rotation speed. This makes it particularly suitable for cyclic on Goblin 380, Trex 450 and larger helis, and control surfaces of large fast models up to 6 Kg in weight.

In addition to the contactless/magnetic position sensor, these high voltage (2S LiPo capable) servos use zero slop hardened steel gears, aluminium alloy cases, and well designed electronics to deliver the best performance at this size and price point. The combination of no free play in the geartrain and the ± 100º rotation range gives these servos the best resolution of any on the market.

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.

KST MS325 Servo Specifications
Body dimensions	23.0 mm wide x 12.0 mm thick x 27.5 mm high	0.91″ wide x 0.47″ thick x 1.08″ high
Max dimensions	32.0 mm wide x 12.0 mm thick x 32.0 mm high	1.26″ wide x 0.47″ thick x 1.26″ high
Stall torque (6V)	3.8 Kg.cm	53 oz.in
Stall torque (7.4V)	4.6 Kg.cm	64 oz.in
Stall torque (8.4V)	5.2 Kg.cm	72 oz.in
Weight	20 g	0.71 oz
Lead length	21 cm	8.3 in
Operating speed (6V)	0.09 sec/60°
Operating speed (7.4V)	0.08 sec/60°
Operating speed (8.4V)	0.07 sec/60°
Operating voltage	6V to 8.4V
Operating temperature	-20 to 65 °C
Bearings	2 Ball bearings
Gear material	Hardened steel
Case material	Aluminium alloy
Motor type	Coreless
Working frequency	333 Hz
Dead band/resolution	2 µs
Pulse width for ± 60º	800-2200 µs
Digital	Yes
Programmable	No
Position feedback	Hall effect (magnetic)
Supplied accessories	2 plastic output arms, 2 arm retaining screw, 2 mounting screws
Optional accessories	KST Plastic Servo Arm Set