SunnySky X Series V3 X4120 430KV Brushless Motor
by SunnySky

The SunnySky X Series V3 X4120 430KV is a heavy-lift brushless motor designed for large-scale fixed-wing aircraft and multi-rotor platforms requiring high torque and efficiency. As part of the upgraded V3 series, it features a rugged, cross-shaped housing design for optimized heat dissipation and improved structural integrity. This 430KV variant is specifically engineered for 6S to 8S LiPo power systems, making it a powerhouse for 30cc-class electric conversions or large UAV projects.

Built with premium Japanese NMB ball bearings and high-purity oxygen-free copper windings, the X4120 V3 delivers exceptionally smooth operation and maximum electrical efficiency. Its robust 6mm internal shaft and durable bell construction are designed to handle the massive centrifugal forces of large propellers. This motor provides the stable power and precise throttle control needed for technical aerobatics or long-endurance cinematic missions.

Key Features

• V3 Engineering Enhancements: Redesigned for better cooling and higher durability, offering a significant efficiency boost over previous versions.

• Japanese NMB Bearings: High-quality bearings ensure reduced friction, whisper-quiet operation, and a significantly longer service life.

• N52 High-Temp Magnets: Features premium magnets that maintain high magnetic flux and performance even under extreme heat loads.

• High Torque Density: Optimized for large props, providing massive low-end grunt for vertical climbs and heavy-lift stability.

• Precision Dynamic Balancing: Every unit is factory-balanced to eliminate vibrations, protecting your airframe and ensuring clean sensor data.

Technical Specifications

• KV Rating: 430KV

• Configuration: 12N14P

• Input Voltage: 6S - 8S LiPo (up to 33.6V)

• Stator Diameter: 41mm

• Stator Thickness: 20mm

• Shaft Diameter: 6mm

• Motor Weight: ~295g (including wires)

• Internal Resistance: 26m

• Idle Current: 1.2A @ 10V

• Max Continuous Current: 85A (30s)

• Max Continuous Power: 2100W (30s)

• Mounting Pattern: 30mm x 30mm (M4/M3)

What’s Included

• 1x SunnySky X4120 430KV V3 Brushless Motor

• 1x Bolt-On Propeller Adapter

• 1x Cross Motor Mount

• Mounting Hardware (Screws and Washers)