TMotor MN4112 Multi-Motor Fixed Wing UAV Motor (KV320 / KV420)

About T-MOTOR MN4112 Multirotor Fixed Wing UAV Motor KV320/KV420

T-MOTOR ANTIGRAVITY MN4112 KV320/KV420 is engineered for versatile UAV applications, including multi-rotors, VTOL, and fixed-wing drones.

Designed to deliver exceptional efficiency and reliable thrust, this industrial-grade motor ensures outstanding performance for aerial photography and beyond.

MN4112 Highlights:

Max. thrust ：3.7kg
MTBF：1000hours
Industrial Grade, Waterproof, dustproof, low noise, 220°C high temperature resistance.
For multi-rotors, VTOL and fixed wings
5% more efficient on 1kg-2.5kg
5% more thrust on 100% throttle
Heat flux increases by 18%

Technical Drawing

Specification

Motor Size	Φ47.4*38.7mm	Stator	Imported silicon steel sheet; Anti-rust treatment;180℃ high temperature-resisting coatings
Configuration	12N14P	Shaft Diameter	IN：6mm OUT：4
Bearing	686ZZ/696ZZ	Magnet Level	N45SH
Lead Cable	16AWG*150mm	Copper Wire	220℃ high temperature resistance: Level C
Coil Insulation Test	500V/5s	Centrifugal Cooling Design	YES
Rotor Dynamic Balance Standard	≤5Mg

KV	320	Rated Voltage (LiPo)	6S
ldle Current(10V)	1.1A	Propeller Recommendation	P15 17"/T16*8"
Peak Current (180s)	40A	Motor Weight (Incl. Cable)	172g
Max.Power (180s)	910W	Package Weight	275g
Internal Resistance	94mΩ

KV	420	Rated Voltage (LiPo)	6S
ldle Current(10V)	1.4A	Propeller Recommendation	P15*5"
Peak Current (180s)	54A	Motor Weight (Incl. Cable)	172g
Max.Power (180s)	1210W	Package Weight	275g
Internal Resistance	60mΩ

Fixed wing Recommendation
KV	MN4112 KV320	Propeller	T16*8"
ESC	AT 75A 6S	Battery(LiPo) /Voltage	6S(4.2V/pc)/22-25V
Thrust/motor(kg)	1.1kg	MTOW (1 motor/2 motors) (kg)	3.5/7kg

Multi-rotor/VTOL Recommendation
KV	MN4112 KV320	Propeller	P15*5"
ESC	FLAME 60A 12S V2.0	Battery(LiPo) /Voltage	6S(4.2V/pc)/22-25V
Thrust/motor(kg)	0.8kg	MTOW (1 motor/2 motors) (kg)	3.2kg

KV	MN4112 KV320	Propeller	P16*5.4"
ESC	FLAME 60A 12S V2.0	Battery(LiPo) /Voltage	6S(4.2V/pc)/22-25V
Thrust/motor(kg)	1.0kg	MTOW (1 motor/2 motors) (kg)	4.0kg

KV	MN4112 KV320	Propeller	P17*5.8"
ESC	FLAME 60A 12S V2.0	Battery(LiPo) /Voltage	6S(4.2V/pc)/22-25V
Thrust/motor(kg)	1.25kg	MTOW (1 motor/2 motors) (kg)	5.0kg

KV	MN4112 KV420	Propeller	P15*5"
ESC	FLAME 60A 12S V2.0	Battery(LiPo) /Voltage	6S(4.2V/pc)/22-25V
Thrust/motor(kg)	1.25kg	MTOW (1 motor/2 motors) (kg)	5.0kg
Note: For coaxial configurations, please consider a thrust loss of 25%

Test Data

Type	Propeller	Throttle	Voltage (V)	Thrust (g)	Torque (N*m)	Current (A)	RPM	Power (W)	Efficiency (g/W)	Operating Temperature (℃)
MN4112 KV320	P15*5"	40%	23.47	566	0.10	1.96	3196	46	12.31	79 (Ambient Temperature: 15℃)
		42%	23.46	600	0.11	2.14	3298	50	11.93
		44%	23.46	645	0.12	2.37	3417	56	11.63
		46%	23.46	691	0.13	2.56	3523	60	11.48
		48%	23.45	739	0.14	2.82	3641	66	11.18
		50%	23.44	789	0.14	3.05	3745	72	11.02
		52%	23.43	838	0.15	3.34	3859	78	10.69
		54%	23.43	888	0.16	3.59	3969	84	10.56
		56%	23.42	940	0.17	3.89	4085	91	10.31
		58%	23.41	1000	0.18	4.26	4208	100	10.02
		60%	23.41	1049	0.19	4.57	4313	107	9.82
		62%	23.40	1108	0.20	4.89	4431	114	9.68
		64%	23.39	1171	0.21	5.28	4547	124	9.47
		66%	23.38	1226	0.22	5.68	4663	133	9.23
		68%	23.38	1286	0.23	6.05	4774	141	9.10
		70%	23.37	1347	0.24	6.50	4886	152	8.87
		72%	23.36	1416	0.25	6.95	4999	162	8.72
		74%	23.35	1482	0.27	7.43	5112	174	8.54
		76%	23.34	1535	0.28	7.85	5215	183	8.38
		78%	23.33	1597	0.29	8.34	5325	195	8.21
		80%	23.32	1671	0.30	8.90	5437	208	8.05
		90%	23.27	2035	0.36	11.82	5956	275	7.40
		100%	23.19	2551	0.46	16.59	6632	385	6.63
MN4112 KV320	P16*5.4"	40%	23.94	706	0.14	2.49	3207	60	11.83	82 (Ambient Temperature: 15℃)
		42%	23.94	757	0.15	2.73	3310	65	11.58
		44%	23.93	816	0.16	3.00	3423	72	11.37
		46%	23.93	873	0.17	3.28	3533	79	11.11
		48%	23.92	932	0.18	3.59	3648	86	10.85
		50%	23.91	991	0.19	3.89	3749	93	10.66
		52%	23.90	1061	0.20	4.28	3862	102	10.38
		54%	23.90	1127	0.21	4.63	3968	111	10.20
		56%	23.89	1195	0.23	5.03	4082	120	9.95
		58%	23.88	1264	0.24	5.46	4197	130	9.70
		60%	23.87	1327	0.25	5.87	4302	140	9.47
		62%	23.86	1408	0.26	6.33	4415	151	9.32
		64%	23.85	1486	0.28	6.82	4528	163	9.13
		66%	23.84	1568	0.30	7.37	4640	176	8.92
		68%	23.83	1652	0.31	7.94	4744	189	8.73
		70%	23.82	1725	0.33	8.49	4849	202	8.53
		72%	23.81	1805	0.34	9.07	4957	216	8.36
		74%	23.80	1896	0.36	9.75	5066	232	8.17
		76%	23.78	1970	0.37	10.39	5169	247	7.97
		78%	23.78	2052	0.38	10.93	5269	260	7.89
		80%	23.76	2138	0.40	11.65	5376	277	7.72
		90%	23.70	2577	0.48	15.49	5872	367	7.02
		100%	23.60	3179	0.59	21.69	6495	512	6.21
MN4112 KV320	P17*5.8"	40%	23.93	867	0.18	3.06	3150	73	11.83	81 (Ambient Temperature: 15℃)
		42%	23.93	930	0.19	3.36	3249	80	11.56
		44%	23.91	1005	0.20	3.74	3360	89	11.23
		46%	23.91	1075	0.22	4.09	3462	98	11.00
		48%	23.90	1141	0.23	4.48	3573	107	10.67
		50%	23.89	1208	0.24	4.87	3674	116	10.38
		52%	23.88	1284	0.25	5.27	3777	126	10.21
		54%	23.87	1362	0.27	5.77	3888	138	9.89
		56%	23.86	1439	0.28	6.22	3985	148	9.70
		58%	23.85	1525	0.30	6.74	4094	161	9.49
		60%	23.84	1604	0.31	7.28	4197	174	9.23
		62%	23.82	1687	0.33	7.85	4299	187	9.02
		64%	23.82	1775	0.35	8.43	4406	201	8.84
		66%	23.80	1869	0.37	9.10	4515	217	8.63
		68%	23.79	1954	0.38	9.77	4617	233	8.40
		70%	23.78	2049	0.40	10.47	4714	249	8.23
		72%	23.77	2143	0.42	11.20	4815	266	8.05
		74%	23.75	2233	0.44	11.93	4913	284	7.88
		76%	23.74	2331	0.46	12.74	5012	302	7.71
		78%	23.73	2426	0.48	13.61	5111	323	7.51
		80%	23.72	2513	0.49	14.28	5200	339	7.42
		90%	23.64	3012	0.59	18.99	5655	449	6.71
		100%	23.53	3639	0.71	26.33	6211	620	5.87
MN4112 KV320	T16*8"	40%	23.93	804	0.17	3.00	3161	72	11.19	79 (Ambient Temperature: 15℃)
		42%	23.93	863	0.18	3.29	3260	79	10.97
		44%	23.92	926	0.20	3.63	3369	87	10.66
		46%	23.91	986	0.21	3.98	3474	95	10.36
		48%	23.90	1053	0.22	4.38	3586	105	10.06
		50%	23.89	1112	0.23	4.73	3682	113	9.84
		52%	23.88	1182	0.25	5.16	3789	123	9.58
		54%	23.87	1252	0.26	5.61	3900	134	9.35
		56%	23.86	1314	0.28	6.03	4002	144	9.12
		58%	23.85	1393	0.29	6.60	4110	157	8.86
		60%	23.85	1462	0.31	7.07	4209	168	8.68
		62%	23.84	1538	0.32	7.59	4317	181	8.51
		64%	23.82	1625	0.34	8.21	4425	196	8.31
		66%	23.81	1709	0.36	8.88	4531	212	8.08
		68%	23.80	1795	0.37	9.54	4635	227	7.91
		70%	23.79	1871	0.39	10.18	4732	242	7.73
		72%	23.77	1957	0.41	10.90	4835	259	7.55
		74%	23.76	2044	0.43	11.64	4935	276	7.39
		76%	23.75	2134	0.44	12.42	5034	295	7.23
		78%	23.73	2218	0.46	13.21	5132	313	7.08
		80%	23.72	2295	0.48	13.97	5222	331	6.93
		90%	23.65	2759	0.58	18.66	5677	441	6.25
		100%	23.54	3370	0.71	26.05	6230	613	5.50
MN4112 KV420	P15*5"	40%	23.93	867	0.16	3.70	3928	88	9.80	79 (Ambient Temperature: 15℃)
		42%	23.91	932	0.17	4.07	4066	97	9.56
		44%	23.91	997	0.18	4.49	4215	107	9.29
		46%	23.90	1063	0.20	4.85	4342	116	9.17
		48%	23.89	1144	0.21	5.40	4499	129	8.88
		50%	23.88	1223	0.23	5.88	4648	140	8.72
		52%	23.87	1299	0.24	6.39	4790	152	8.53
		54%	23.86	1377	0.25	6.96	4935	166	8.30
		56%	23.84	1466	0.27	7.65	5083	182	8.04
		58%	23.84	1539	0.28	8.16	5212	194	7.91
		60%	23.82	1635	0.30	8.85	5356	211	7.75
		62%	23.81	1723	0.31	9.56	5497	228	7.57
		64%	23.80	1808	0.33	10.27	5636	244	7.40
		66%	23.78	1898	0.34	11.03	5768	262	7.23
		68%	23.77	1986	0.36	11.81	5901	281	7.07
		70%	23.76	2084	0.38	12.61	6036	300	6.95
		72%	23.74	2235	0.40	14.01	6233	332	6.72
		74%	23.72	2327	0.42	14.96	6370	355	6.56
		76%	23.71	2406	0.43	15.73	6478	373	6.45
		78%	23.70	2496	0.45	16.60	6607	393	6.34
		80%	23.68	2589	0.46	17.59	6731	416	6.22
		90%	23.60	3093	0.56	23.17	7324	547	5.66
		100%	23.48	3752	0.68	31.41	8025	738	5.09
Note: Motor temperature is motor surface temperature at 100% throttle running 10 mins. (Date above based on benchtest are for reference only. Comparion with that of other motor types is not recommended.)