KST CM4315 Digital Servo – Power, Strength & Reliability for Demanding RC Models
Ideal for tow planes and warbirds, the KST CM4315 delivers impressive torque, exceptional durability, and outstanding value for money. At Aerobertics, we appreciate components that combine raw performance with long-term reliability—and this servo does exactly that, without stretching your budget.
Built around a powerful coreless motor, reinforced steel gears, and dual ball bearings, the CM4315 is designed to handle high loads and demanding flight conditions with confidence. Fast response times and programmable digital electronics make it a versatile choice for both scale and high-performance applications.
Key Highlights:
- High torque output across a wide voltage range
- Extremely robust construction with steel gear train
- Fast and precise digital control
- Programmable soft start and parameters
- Excellent performance-to-price ratio, selected by Aerobertics
Technical Specifications:
- Operating Voltage: 4.8 – 8.4 V
Torque:
- 25.0 kgf·cm @ 4.8V
- 30.0 kgf·cm @ 6.0V
- 36.0 kgf·cm @ 7.4V
- 43.0 kgf·cm @ 8.4V
Speed (60°):
- 0.23 s @ 4.8V
- 0.19 s @ 6.0V
- 0.16 s @ 7.4V
- 0.15 s @ 8.4V
Stall Current:
- 3.00 A @ 4.8V
- 3.90 A @ 6.0V
- 4.80 A @ 7.4V
- 5.05 A @ 8.4V
Dimensions:
- Width: 20.0 mm
- Length: 40.5 mm
- Height: 38.0 mm
Weight: 70 g
Additional Features:
- Motor Type: Coreless
- Gear Type: Steel
- Bearing Type: Dual Ball Bearings (2BB)
- Spline: 25T-6
- Servo Type: Standard
- Electronics: Digital
- Position Sensor: Potentiometer
- Waterproof: No
- Frequency Range: 1520µs / 333Hz (1000–2000µs)
- Soft Start: Programmable
- Programmable: Yes
- Programming Tools: KST Tool #3 and KST Tool #5
Please always refer to the model manufacturer’s servo recommendations when selecting servos.
At Aerobertics, we choose servos that pilots can rely on—whether you’re towing gliders, flying scale warbirds, or pushing performance limits. The KST CM4315 is a rock-solid choice you can trust in the air.
