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STEAM D4725

The STEAM D4725 is a 520KV brushless motor for the STEAM Dancer 700 helicopter. Built with CNC-machined 6061T6 aluminium alloy, three large bearings and internal cooling fins, it uses hand-wound 1.4 mm single-strand copper wire. The package includes mounting screws and gold-plated banana connectors.

XinyueDrone motor
Motor KV
520 KV
Weight
500 g

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Product overview

The STEAM D4725 brushless motor provides power for the STEAM Dancer 700 helicopter. Its construction combines precision CNC-machined 6061T6 aluminium alloy, three large bearings, neodymium-iron-boron magnets and internal active cooling fins. Single-strand 1.4 mm copper wire is wound by hand with high slot fill. The motor has a 47 mm stator diameter, 25 mm stator thickness, 12 stator arms and 10 magnetic poles, with a motor KV of 520KV.

The D4725 supports battery configurations up to 12s, with maximum continuous ratings of 120 A and 4800 W. Peak ratings are 238 A and 10800 W for 2 seconds. The 500 g motor measures 58.5 mm in outside diameter and 57 mm in body length, with a 5.98 mm shaft diameter and 110 mm total shaft length. Supplied equipment includes one motor, four M4×7.5mm socket-head screws, three Φ7.0 gold-plated male banana connectors and three matching female connectors.

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Specifications

STEAM D4725 specifications
SpecificationValue & conditions
Model and product typeSTEAM D4725 4725-520KV brushless motor
ApplicationFor the STEAM Dancer 700 helicopter
ConstructionPrecision CNC-machined 6061T6 aluminium alloy
BearingsThree large bearings
Magnets180-degree high-quality neodymium-iron-boron magnets
CoolingInternal high-efficiency active cooling fins
Winding wire1.4 mm single-strand copper wire
Winding manufactureHand-wound with high slot fill
Stator diameter47 mm
Stator thickness25 mm
Stator arms12
Magnetic poles10
Motor KV520KV
No-load current2.1 AAt 10V.
Motor resistance0.0132 ohm
Maximum continuous current120 AContinuous operation.
Maximum continuous power4800 WContinuous operation.
Weight500 g
Outside diameter58.5 mm
Shaft diameter5.98 mm
Body length57 mm
Total shaft length110 mm
Battery cell count12sMaximum supported battery configuration.
Maximum peak current238 AFor 2 seconds.
Maximum peak power10800 WFor 2 seconds.
Motor timing5° ~ 15°
Drive frequency5kHz or 8kHz
Package contents1 × 4725-520KV brushless motor with 1.4mm wire; 4 × M4×7.5mm socket-head screws; 3 × Φ7.0 gold-plated male banana connectors; 3 × Φ7.0 gold-plated female banana connectorsIncluded equipment.

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