SunnySky X3525 Brushless Motors（720KV)

The X series motors feature a hollow-designed appearance that is achieved through CNC milling, resulting in excellent heat dissipation and reduced motor weight. This design also gives the motors a strong visual appeal.

The motor shaft is made of 420 stainless steel imported from Japan, which is heat treated to enhance its strength, ductility, and resistance to bending and breaking.

The top and bottom caps of the motors are made of high-strength 6061-T6 aviation aluminum alloy, which has high hardness and strength of extension, ensuring reliable motor performance.

The X series motors use customized NMB mini bearings imported from Japan, which offer longer lifespan, quiet and stable operation.

The coils of the X series motors are all hand wound, resulting in tight, neat coils with a better coil space factor. This manufacturing procedure increases the continuous power output of the motors, despite being more labor-intensive.

Specifications

series of motors are processed by CNC milling, the hollow-designed appearance not only guarantee good heat dissipation, but also greatly reduce motor weight. In addition, it also make motors look more strong at visual.

KV720

Stator Diameter	35mm	Rotor Diameter	42.5mm
Stator Thickness	25mm	Shaft Diameter	5mm
No.of Stator Slots	12	Body Length (Without Shaft)	50mm
No.of Rotor Poles	14	Body Length	69mm
Motor Kv	720	Max Lipo Cell	4-5S
No-load current	2.0A/10V	ESC	80-100A
Motor Resistance	14mΩ	Recommended Prop(inch)	APC12*6/APC12*8/APC13*6.5/APC13*8/DXL14*8
Max Continuous Current	81A/10s
Max Continuous Power	1700W
Weight	248g

 

Prop(inch)	Voltage(V)	Amps(A)	Thrust(gf)	Watts(W)	Efficiency(g/W)	Load temperature in 100% throttle
APC12*6	14.8	3.9	500	57.72	8.662508663	45℃
		6.5	750	96.2	7.796257796
		9.3	1000	137.64	7.265329846
		12.8	1250	189.44	6.59839527
		16.8	1500	248.64	6.032818533
		20.4	1750	301.92	5.796237414
		24.7	2000	365.56	5.471058103
		29.9	2300	442.52	5.197505198
	16.8	3.5	500	58.8	8.503401361	48℃
		5.9	750	99.12	7.566585956
		8.5	1000	142.8	7.00280112
		11.4	1250	191.52	6.5267335
		15	1500	252	5.952380952
		18.2	1750	305.76	5.723443223
		22.6	2000	379.68	5.267593763
		27.3	2300	458.64	5.014826443
		37.2	2870	624.96	4.592293907
	18.5	3.4	500	62.9	7.949125596	78℃
		5.5	750	101.75	7.371007371
		7.8	1000	144.3	6.93000693
		10.7	1250	197.95	6.314725941
		13.6	1500	251.6	5.961844197
		16.5	1750	305.25	5.733005733
		20.4	2000	377.4	5.299417064
		25.2	2300	466.2	4.933504934
		29.3	2600	542.05	4.796605479
		37.4	3000	691.9	4.335886689
		44.3	3400	744.24	4.56841879
	21	3	500	63	7.936507937	93℃
		4.9	750	102.9	7.288629738
		7	1000	147	6.802721088
		9.1	1250	191.1	6.54107797
		12.2	1500	256.2	5.854800937
		15.1	1750	317.1	5.518763797
		18.3	2000	384.3	5.204267499
		22.6	2300	474.6	4.846186262
		26.9	2600	564.9	4.602584528
		33.8	3000	709.8	4.226542688
		43.6	3500	915.6	3.822629969
		55.5	4200	1165.5	3.603603604
APC12*8	14.8	3	500	44.4	11.26126126	48℃
		4.9	750	72.52	10.34197463
		7	1000	103.6	9.652509653
		9.1	1250	134.68	9.281259281
		12.2	1500	180.56	8.307487816
		15.1	1750	223.48	7.83067836
		18.3	2000	270.84	7.384433614
		22.6	2470	334.48	7.384596986
	16.8	3.7	500	62.16	8.043758044	76℃
		6.2	750	104.16	7.200460829
		9	1000	151.2	6.613756614
		12.4	1250	208.32	6.000384025
		16	1500	268.8	5.580357143
		20.7	1750	347.76	5.032206119
		24.5	2000	411.6	4.859086492
		29.8	2300	500.64	4.594119527
		36.3	2600	609.84	4.263413354
		44.9	3020	754.32	4.003605897
	18.5	3.4	500	62.9	7.949125596	98℃
		5.6	750	103.6	7.239382239
		8.5	1000	157.25	6.359300477
		11.5	1250	212.75	5.875440658
		15.8	1500	292.3	5.131713992
		17.8	1750	329.3	5.314303067
		22.5	2000	416.25	4.804804805
		27	2300	499.5	4.604604605
		32.6	2600	603.1	4.311059526
		43.4	3000	802.9	3.736455349
		54.1	3360	908.88	3.696857671
	21	3	500	63	7.936507937	3min 93℃
		5.1	750	107.1	7.00280112
		7.6	1000	159.6	6.26566416
		10	1250	210	5.952380952
		13	1500	273	5.494505495
		16.1	1750	338.1	5.175983437
		19.8	2000	415.8	4.81000481
		24.9	2300	522.9	4.398546567
		30.4	2600	638.4	4.072681704
		37.6	3000	789.6	3.799392097
		53.1	3500	1115.1	3.138731952
		67.1	4000	1409.1	2.838691363
APC13*6.5	14.8	3.6	500	53.28	9.384384384	52℃
		6	750	88.8	8.445945946
		8.8	1000	130.24	7.678132678
		11.6	1250	171.68	7.280987884
		15.2	1500	224.96	6.667852063
		18.9	1750	279.72	6.256256256
		23.1	2000	341.88	5.85000585
		27.8	2300	411.44	5.590122497
		38.1	2810	563.88	4.983329786
	16.8	3.2	500	53.76	9.300595238	60℃
		5.5	750	92.4	8.116883117
		7.8	1000	131.04	7.631257631
		10.5	1250	176.4	7.0861678
		13.6	1500	228.48	6.56512605
		16.9	1750	283.92	6.163708087
		20.4	2000	342.72	5.8356676
		24.9	2300	418.32	5.498183209
		30	2600	504	5.158730159
		39.5	3000	663.6	4.52079566
		47.5	3500	798	4.385964912
	18.5	3	500	55.5	9.009009009	95℃
		5	750	92.5	8.108108108
		7.2	1000	133.2	7.507507508
		9.7	1250	179.45	6.965728615
		12.4	1500	229.4	6.538796861
		15.6	1750	288.6	6.063756064
		18.9	2000	349.65	5.72000572
		23.3	2300	431.05	5.335807911
		27.7	2600	512.45	5.073665723
		35	3000	647.5	4.633204633
		44	3500	739.2	4.734848485
		56.2	4170	944.16	4.416624301
	21	2.7	500	56.7	8.818342152	3min 96℃
		4.4	750	92.4	8.116883117
		6.6	1000	138.6	7.215007215
		8.7	1250	182.7	6.841817187
		11.4	1500	239.4	6.26566416
		13.8	1750	289.8	6.038647343
		17.2	2000	361.2	5.53709856
		20.8	2300	436.8	5.265567766
		24.6	2600	516.6	5.032907472
		36.2	3000	760.2	3.946329913
		39.1	3500	821.1	4.262574595
		48.4	4000	1016.4	3.935458481
		59	4500	1239	3.631961259
		69.3	5050	1455.3	3.470074899
APC13*8	14.8	3.8	500	56.24	8.890469417	50℃
		6.3	750	93.24	8.043758044
		9.2	1000	136.16	7.344300823
		12.3	1250	182.04	6.86662272
		16	1500	236.8	6.334459459
		19.8	1750	293.04	5.971880972
		24.1	2000	356.68	5.607267018
		30	2300	444	5.18018018
		36.2	2600	535.76	4.852919218
		44.5	2980	658.6	4.524749469
	16.8	3.4	500	57.12	8.753501401	93℃
		5.6	750	94.08	7.971938776
		8	1000	134.4	7.44047619
		10.9	1250	183.12	6.826124945
		14.1	1500	236.88	6.332320162
		17.8	1750	299.04	5.852059925
		21.6	2000	362.88	5.511463845
		26.9	2300	451.92	5.089396353
		32.6	2600	547.68	4.747297692
		41.8	3000	702.24	4.272043746
		55.1	3660	925.68	3.953850143
	18.5	3.1	500	57.35	8.718395815	94℃
		5.2	750	96.2	7.796257796
		7.7	1000	142.45	7.02000702
		10.2	1250	188.7	6.62427133
		13.2	1500	244.2	6.142506143
		16.3	1750	301.55	5.803349362
		19.9	2000	368.15	5.432568247
		24.6	2300	455.1	5.053834322
		29.5	2600	545.75	4.76408612
		38.8	3000	717.8	4.179437169
		47.9	3500	804.72	4.3493389
		60	4000	1008	3.968253968
		64.3	4200	1080.24	3.888024883
	21	2.8	500	58.8	8.503401361	1min 102℃
		4.7	750	98.7	7.598784195
		6.9	1000	144.9	6.901311249
		9	1250	189	6.613756614
		11.5	1500	241.5	6.211180124
		14.6	1750	306.6	5.707762557
		18.1	2000	380.1	5.261773218
		22	2300	462	4.978354978
		26.3	2600	552.3	4.707586457
		34.3	3000	720.3	4.164931279
		44	3500	924	3.787878788
		54.4	4000	1142.4	3.50140056
		76	4500	1596	2.819548872
		81.6	4730	1713.6	2.760270775
DXL14*8	14.8	3.7	500	54.76	9.130752374	100℃
		6.1	750	90.28	8.307487816
		8.9	1000	131.72	7.591861524
		11.8	1250	174.64	7.15758131
		15.5	1500	229.4	6.538796861
		19.5	1750	288.6	6.063756064
		23.7	2000	350.76	5.701904436
		29.3	2300	433.64	5.303938751
		35.3	2600	522.44	4.976648036
		47.9	3000	708.92	4.2317892
		55	3470	814	4.262899263
	16.8	3.3	500	55.44	9.018759019	3min 93℃
		5.7	750	95.76	7.832080201
		8.2	1000	137.76	7.259001161
		10.7	1250	179.76	6.953716066
		13.9	1500	233.52	6.423432682
		17.4	1750	292.32	5.986590038
		21.2	2000	356.16	5.615453729
		26	2300	436.8	5.265567766
		31.8	2600	534.24	4.866726565
		38.9	3000	653.52	4.590525156
		49.1	3500	824.88	4.243041412
		62	4000	1041.6	3.840245776
		66.6	4200	1118.88	3.753753754