FA-4230 Outer Rotor BLDC Motor

FA-4320 ultra high-power outer rotor brushless DC motor adopts single 380KV winding design, matching 8S lithium battery power supply. It reaches 831W nominal output power and 2843W peak instantaneous power within short 22s. Equipped with 14AWG thick C-grade high-temperature wire and 12N14P multi-pole winding, it delivers extreme heavy-load stable performance.

• Model Version: 4320-380KV
• Overall Dimension: Φ50.8 * 41.3mm
• Pole Configuration: 12N14P
• Wire Spec: 14AWG, C-grade 220℃ insulation
• Output Shaft: D6 + M6 thread, 25mm shaft length
• Standard Wire Length: 500mm
• Max Peak Power: 2843W/22s

FA-4320 large-size outer rotor brushless motor for super heavy-lift industrial drone

Mechanical Dimensions

Outline size, shaft and base hole schematic of FA-4320 ultra high-power outrunner BLDC motor

Dimensions are in mm. Please refer to the datasheet for tolerances and mounting details.

Performance Parameters

Model 4320-380KV
Kilovolt 380KV
Nominal voltage 8S
No load current 2.2A
Nominal output power 831W
Maximum current 89A/22s
Maximum power 2843W/22s
Motor size Φ50.8 *41.3mm
Number of poles 12N14P
Wire size 14AWG
Wire length 500mm
Insulation grade of enameled wire 耐 220℃高温 C 级
Terminal resistance 33mΩ
Output shaft length 25mm
Output shaft diameter D6+M6
Base screw thread Φ30mm-4*M4

Engineering Overview

Core Advantages

  1. Extra large Φ50.8 outer rotor structure supports ultra-high peak power up to 2843W for super heavy payload;
  2. Single 380KV low-speed high-torque winding perfectly matches 8S high-voltage lithium battery packs;
  3. 14AWG thick high-temperature wire effectively suppress temperature rise under long heavy load;
  4. 12N14P multi-pole design brings ultra-smooth rotation, low vibration and high energy conversion efficiency;
  5. Heavy-duty M6 threaded shaft and reinforced 4×M4 mounting base resist large impact thrust;
  6. Long 500mm outgoing wire simplifies wiring layout for large industrial automation equipment.

Typical Applications

• Super heavy-lift large industrial multi-rotor UAV, logistics delivery & long-distance aerial survey drones
• Ultra high-power heavy-duty handheld polishing, grinding and industrial power tools
• Large high-torque rotary automation heavy-load drive actuators
• Industrial high-flow large blowers, agricultural heavy-duty fan drive modules

Custom Outer Rotor BLDC Motor Solutions

FA-4320 supports customized KV winding, wire length, shaft size and mounting hole layout. We provide ultra-high thrust outrunner motor customization for heavy-lift UAV and industrial heavy-load projects.