Designed for weight-conscious RC glider and jet pilots who refuse to compromise on precision, the KST FZ320 high-voltage digital wing servo packs a coreless motor, all-metal gear train, and Low-EMF Anti-Interference Technology into an ultra-light 20g mini form factor. Whether you're trimming ailerons on an F3J sailplane or dialing flap authority on a high-speed jet, the FZ320 delivers smooth, repeatable response and robust holding torque — flight after flight.

Key Features

• Low-EMF Anti-Interference Technology: Reduced electromagnetic emissions ensure clean, noise-free signal reception in close-packed servo bays and high-current airframes.
• High-Voltage Operation: Native 6.0V–8.4V compatibility for direct 2S LiPo use, no regulator required.
• Coreless DC Motor: Fast linear acceleration, minimal deadband, and consistent centering performance across the full travel range.
• All-Metal Gear Train: Precision metal gears supported by dual ball bearings deliver zero-backlash control and reliable crash resistance.
• Full CNC Aluminum Casing: Rigid, lightweight housing provides structural durability and efficient heat management.
• Ultra-Lightweight Build: At just 20g, the FZ320 is optimized for weight-critical glider wings and compact jet installations.

Technical Specifications

• Model: FZ320 Digital Metal Gear Servo
• Rated Voltage: DC 7.4V
• Voltage Range: DC 6.0V – 8.4V
• Motor Type: Coreless DC Motor
• Gear Set Material: Metal Gear
• Case Material: CNC Aluminum Alloy
• Bearings: Dual Ball Bearings (2BB)
• Position Sensor: Potentiometer
• Working Frequency: 1520μs / 333Hz
• Default Travel Angle: ±50° (100° Total)
• Operating Temperature: -20°C to +65°C
• Dimensions: 23.0 × 12.0 × 27.0 mm (±0.2mm)
• Weight: 20g (±10%)

Performance Ratings

• Stall Torque:
  • 4.5 kgf.cm @ 6.0V
  • 5.5 kgf.cm @ 7.4V
• Operating Speed (No-Load):
  • 0.10 sec/60° @ 6.0V
  • 0.09 sec/60° @ 7.4V

Dimensions & Sizing

Documentation

• FZ320-200 Technical Specification