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COMPONENT

DYS BE4108 Multi-Rotor Brushless Motor

By DYS ↗

The DYS BE4108 Multi-Rotor Brushless Motor is an outrunner propulsion component offered in 720KV, 580KV, 480KV and 380KV versions. Its 46 × 25mm body, 4.0mm shaft and 113g weight define the mechanical integration envelope. All versions specify 3–6S LiPo batteries, with winding-specific electrical limits and battery–propeller-dependent pull figures.

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DYS BE4108 brushless motor with gold housing, exposed copper windings and attached wires.
DYS BE4108 brushless motor with gold housing, exposed copper windings and attached wires.
DYS BE4108 brushless motor with black housing and exposed copper windings.
DYS BE4108 brushless motor with black housing and exposed copper windings.
Manufacturer and modelDYS BE4108 Multi-Rotor Brushless Motor; BE-series outrunner motor.
Motor variants720KV, 580KV, 480KV and 380KV; respective stated pull values: 2200g, 2000g, 2450g and 2080g.
Configuration and statorConfiguration: NP; stator diameter: 41mm; stator length: 8mm.
Mechanical integration dimensionsShaft diameter: 4.0mm; motor diameter × length: Φ46 × 25mm; weight: 113g.
Battery range3–6S LiPo.
720KV electrical specificationsMaximum continuous current: 30A; maximum continuous power: 666W; internal resistance: 0.055Ω.720KV motor.

Product overview

The DYS BE4108 provides brushless propulsion for multirotor integration in four winding options: 720KV, 580KV, 480KV and 380KV. Its outrunner architecture combines a 41mm-diameter, 8mm-long stator with a 4.0mm shaft inside a motor envelope measuring 46mm in diameter by 25mm long. Each version weighs 113g and specifies 3–6S LiPo operation. Construction includes 0.2mm Kawasaki silicon steel, 40UH magnets, NSK bearings and a precision CNC-machined shell with balancing. The product is a motor component.

Electrical selection depends on the winding and battery–propeller combination. Maximum continuous current and power are 30A/666W for 720KV, 37A/821W for 580KV, 27A/599W for 480KV and 17.2A/381W for 380KV. The loaded operating points retain their specific propellers and cell counts, so their pull figures should remain tied to those configurations. Some 720KV operating points exceed its 30A continuous-current rating: the 5S, 12 × 3.8 APC combination reaches 37A and 684.5W. That entry also exceeds the stated 666W continuous-power limit.

Specifications

SpecificationValue & conditions
Manufacturer and modelDYS BE4108 Multi-Rotor Brushless Motor; BE-series outrunner motor.
Motor variants720KV, 580KV, 480KV and 380KV; respective stated pull values: 2200g, 2000g, 2450g and 2080g.
Configuration and stator
  • Configuration: NP;
  • stator diameter: 41mm;
  • stator length: 8mm.
Mechanical integration dimensions
  • Shaft diameter: 4.0mm;
  • motor diameter × length: Φ46 × 25mm;
  • weight: 113g.
Battery range3–6S LiPo.
720KV electrical specifications
  • Maximum continuous current: 30A;
  • maximum continuous power: 666W;
  • internal resistance: 0.055Ω.
720KV motor.
580KV electrical specifications
  • Maximum continuous current: 37A;
  • maximum continuous power: 821W;
  • internal resistance: 0.098Ω.
580KV motor.
480KV electrical specifications
  • Maximum continuous current: 27A;
  • maximum continuous power: 599W;
  • internal resistance: 0.125Ω.
480KV motor.
380KV electrical specifications
  • Maximum continuous current: 17.2A;
  • maximum continuous power: 381W;
  • internal resistance: 0.193Ω.
380KV motor.
Materials and manufacturingKawasaki 1200# 0.2mm silicon steel, 40UH magnets, Japanese NSK bearings and a precision CNC-machined shell with balancing.BE-series motor construction.
720KV loaded operating point
  • Current: 19.8A;
  • pull: 1270g;
  • power: 219.8W.
BE4108-8, 720KV; 3S LiPo, 11.1V; 12 × 3.8 APC propeller.
720KV loaded operating point
  • Current: 21.2A;
  • pull: 1190g;
  • power: 235.3W.
BE4108-8, 720KV; 3S LiPo, 11.1V; 13 × 6.5 carbon-fiber propeller.
720KV loaded operating point
  • Current: 17.3A;
  • pull: 1050g;
  • power: 192.0W.
BE4108-8, 720KV; 3S LiPo, 11.1V; 14 × 3.8 carbon-fiber propeller.
720KV loaded operating point
  • Current: 30.7A;
  • pull: 1800g;
  • power: 454.4W.
BE4108-8, 720KV; 4S LiPo, 14.8V; 12 × 3.8 APC propeller.
720KV loaded operating point
  • Current: 31A;
  • pull: 1670g;
  • power: 458.8W.
BE4108-8, 720KV; 4S LiPo, 14.8V; 13 × 6.5 carbon-fiber propeller.
720KV loaded operating point
  • Current: 25.5A;
  • pull: 1610g;
  • power: 377.4W.
BE4108-8, 720KV; 4S LiPo, 14.8V; 14 × 3.8 carbon-fiber propeller.
720KV loaded operating point
  • Current: 37A;
  • pull: 2280g;
  • power: 684.5W.
BE4108-8, 720KV; 5S LiPo, 18.5V; 12 × 3.8 APC propeller.
580KV loaded operating point
  • Current: 11.2A;
  • pull: 700g;
  • power: 124.3W.
BE4108-10, 580KV; 3S LiPo, 11.1V; 12 × 3.8 APC propeller.
580KV loaded operating point
  • Current: 13.9A;
  • pull: 800g;
  • power: 154.3W.
BE4108-10, 580KV; 3S LiPo, 11.1V; 13 × 6.5 carbon-fiber propeller.
580KV loaded operating point
  • Current: 10.8A;
  • pull: 620g;
  • power: 119.9W.
BE4108-10, 580KV; 3S LiPo, 11.1V; 14 × 3.8 carbon-fiber propeller.
580KV loaded operating point
  • Current: 18.3A;
  • pull: 1180g;
  • power: 270.8W.
BE4108-10, 580KV; 4S LiPo, 14.8V; 12 × 3.8 APC propeller.
580KV loaded operating point
  • Current: 21.5A;
  • pull: 1225g;
  • power: 318.2W.
BE4108-10, 580KV; 4S LiPo, 14.8V; 13 × 6.5 carbon-fiber propeller.
580KV loaded operating point
  • Current: 16.7A;
  • pull: 1020g;
  • power: 247.2W.
BE4108-10, 580KV; 4S LiPo, 14.8V; 14 × 3.8 carbon-fiber propeller.
580KV loaded operating point
  • Current: 26A;
  • pull: 1680g;
  • power: 481.0W.
BE4108-10, 580KV; 5S LiPo, 18.5V; 12 × 3.8 APC propeller.
580KV loaded operating point
  • Current: 29.1A;
  • pull: 1640g;
  • power: 538.4W.
BE4108-10, 580KV; 5S LiPo, 18.5V; 13 × 6.5 carbon-fiber propeller.
580KV loaded operating point
  • Current: 23.2A;
  • pull: 1490g;
  • power: 429.2W.
BE4108-10, 580KV; 5S LiPo, 18.5V; 14 × 3.8 carbon-fiber propeller.
580KV loaded operating point
  • Current: 34A;
  • pull: 2140g;
  • power: 754.8W.
BE4108-10, 580KV; 6S LiPo, 22.2V; 12 × 3.8 APC propeller.
580KV loaded operating point
  • Current: 37A;
  • pull: 2000g;
  • power: 821.4W.
BE4108-10, 580KV; 6S LiPo, 22.2V; 13 × 6.5 carbon-fiber propeller.
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