Learn about DC coreless motors and the latest coreless motors

Hollow cup motor is a unique DC motor, the hollow meaning is no traditional motor in the middle of the core rotor, the coil (winding) looks like a cup. The biggest feature is this cup-like coil (winding), it has no other support structure, completely made of wire wound, coil through the connecting plate, and commutator, spindle link together, they together form the rotor.

Tip: Under normal circumstances, the connecting plate is composed of plastic and epoxy resin, and its role is to fix the wire and transfer the torque.

The coil rotates in the gap between the magnet and the housing, thus driving the entire rotor to rotate. This structure completely eliminates the electric energy loss caused by the formation of eddy current in the iron core. Because the weight of the rotor is greatly reduced, the rotational inertia is reduced. Compared with the traditional iron core motor, the performance of large torque acceleration and deceleration is outstanding.

Of course, a product can not only have advantages without disadvantages, because there is no iron core support, the coil (winding) can only be made very thin, which also leads to the limited connection strength of the coil and the output shaft, so the whole can not be too big. Generally hollow cup motor maximum power is several hundred watts.

Therefore, from a comprehensive point of view, the hollow cup motor can be applied in the drive that requires a fast response. Such as the rapid adjustment of the flight direction of the missile, the rapid automatic focusing of the camera, industrial robots, bionic prosthetics, etc., in these fields, the hollow cup motor can well meet its technical requirements.

Should also be its small size, for many products with volume requirements to use hollow cup as a power component is also the best choice, such as: toy car, model airplane, electric toothbrush, mini drone and so on.

Like the conventional brush motor to brushless motor, the hollow cup brushless motor is also on the basis of the hollow cup brush motor to eliminate the carbon brush, commutator and other structures, and the current conversion is achieved by the control drive board.

The hollow cup winding is fixed on the annular iron core inside the casing by bonding method. Compared with the conventional brushless motor copper wire wound on the core slot pole, the copper wire material of the hollow cup brushless motor is self-adhesive enamelled wire (coil can be bonded after heating or solvent treatment), there is no winding core. This structure reduces eddy current loss. So the efficiency of the hollow cup brushless motor can reach 80%-90%, while the efficiency of the conventional brushless motor is only about 60%.

Product image
Motor model		VEC-2850		VEC-2855		VEC-3269		VEC-1015		VEC-1218
VOLTAGE	OPERATING RANGE	8.4~14.4	22~26	8.4~14.4	22~26	8.4~14.4	22~26	4.2	8~16	8~14	22~26
	NOMINAL V	12	24	12	24	12	24	4.2	12	12	24
NO LOAD	SPEED r/min	8658	17650	4716	11131	2566	5236	25398	75656	30080	62215
	CURRNT A	0.26	0.22	0.139	0.136	0.139	0.134	0.045	0.04	0.12	0.1
AT MAXIMUM EFFICIENCY	SPEED r/min	7261	15536	4140	10218	2146	4599	20367	65977	24010	52777
	CURRENT A	1.351	1.911	0.997	1.557	0.709	1.003	0.181	0.307	0.475	0.671
	TORQUE mN.m	14.867	22.492	21.362	36.066	26.076	42.08	0.216	0.416	1.373	2.095
	OUTPUT W	11.305	36.593	9.26	38.525	5.86	20.265	0.462	2.877	3.453	11.579
STARTING	TORQUE mN.m	92.126	187.794	174.534	438.557	159.113	345.727	1.093	3.255	6.807	13.811
	CURRENT A	7.022	14.043	7.147	17.411	3.618	7.238	0.734	2.091	1.878	3.752
Product design
Product performance

*The above data are from internal test results and do not represent accurate data.

Product image
Motor model		VEC-4035		VEC-1656SI		VEC-1657		VEC-1628		VEC-1630
VOLTAGE	OPERATING RANGE	12	22~32	8~14	22~32	8~14	22~32	8~14	22~26	8~14	22~26
	NOMINAL V	12	24	12	24	12	24	12	24	12	24
NO LOAD	SPEED r/min	19540	39425	37256	7500	15649	32062	6731	13906	18408	37411
	CURRNT A	0.81	0.81	0.286	0.281	0.18	0.16	0.069	0.065	0.136	0.136
AT MAXIMUM EFFICIENCY	SPEED r/min	17266	36066	33133	69025	12871	27817	5363	11787	15640	33250
	CURRENT A	6.15	8.697	2.298	3.249	0.834	1.179	0.27	0.384	0.768	1.087
	TORQUE mN.m	38.234	56.474	7.165	10.555	4.788	7.317	3.822	5.97	4.041	6.075
	OUTPUT W	69.131	213.292	24.86	76.291	6.453	21.314	2.146	7.369	6.619	21.153
STARTING	TORQUE mN.m	328.513	662.826	64.727	130.473	36.971	55.259	18.805	39.17	26.872	54.614
	CURRENT A	46.688	93.376	18.46	36.92	3.864	7.728	1.06	2.134	4.341	8.682
Product design
Product performance

*The above data are from internal test results and do not represent accurate data.

Product image
Motor model		VEC-2867DI		VEC-2838		VEC-3260SI		VEC-2233		VEC-1819
VOLTAGE	OPERATING RANGE	8.4~14.4	22~26	8~16	18~26	8.4~14.4	22~26	8~14	20~26	7.4	22~32
	NOMINAL V	12	24	12	24	12	24	12	24	7.4	24
NO LOAD	SPEED r/min	1556	3180	56942	92000	3301	6748	17735	36000	26300	38233
	CURRNT A	0.06	0.05	0.32	0.26	0.141	0.138	0.18	0.16	0.25	0.111
AT MAXIMUM EFFICIENCY	SPEED r/min	1295	2781	49659	82946	2738	5891	15155	32132	22586	33627
	CURRENT A	0.296	0.419	2.22	2.38	0.685	0.969	1.057	1.492	1.52	1.811
	TORQUE mN.m	12.364	18.772	4.247	5.957	19.256	29.298	5.062	7.589	3.599	4.378
	OUTPUT W	1.676	5.468	22.087	51.742	5.52	18.074	8.034	25.537	8.512	15.417
STARTING	TORQUE mN.m	91.42	149.8	33.208	60.528	112.833	230.655	34.797	70.632	25.482	36.343
	CURRENT A	1.463	2.923	15.11	21.82	3.33	6.66	6.21	12.42	9.244	5.923
Product design
Product performance

*The above data are from internal test results and do not represent accurate data.

Product image
Motor model		VEC-0824		VEC-2242HI		VEC-2248		VEC-1935		VEC-1956	VEC-1336
VOLTAGE	OPERATING RANGE	6~12	8~14	18	22~32	8.4~14.4	22~26	4.2	12	8~14	8~14
	NOMINAL V	6	12	18	24	12	24	4.2	12	12	12
NO LOAD	SPEED r/min	35000	71171	52379	70170	34680	70263	5594	15999	30323	42500
	CURRNT A	0.055	0.055	0.37	0.37	0.37	0.34	0.088	0.085	0.37	0.3
AT MAXIMUM EFFICIENCY	SPEED r/min	29663	63138	46083	62746	29913	63147	5379	15630	27352	37204
	CURRENT A	0.306	0.432	2.708	3.127	2.321	3.283	2.205	3.726	3.407	2.107
	TORQUE mN.m	0.369	0.556	7.827	9.23	6.534	9.753	10.031	17.243	12.288	4.523
	OUTPUT W	1.147	3.673	37.773	60.65	20.467	64.4696	50.65	28.223	35.196	17.621
STARTING	TORQUE mN.m	2.421	4.922	65.112	87.236	47.529	96.296	261.32	747.402	125.426	36.292
	CURRENT A	1.699	3.398	19.817	26.425	14.566	29.131	55.229	157.797	31.368	14.804
Product design
Product performance

*The above data are from internal test results and do not represent accurate data.

Product image
Motor model		VEC-16 series
MOTOR	TYPE	EC1636			EC1644			EC1656
	LENGTH"L" MM	36mm			44mm			56mm
VOLTAGE	OPERATING RANGE	10~14	22~26	32~38	22~26	28~32	32~38	22~26	28~32	32~38
	NOMINAL V	12	24	36	24	30	36	24	30	36
OUTPUT	OUTPUT RATING W	9.7	19	19	21.5	21.5	21.2	34.2	33.5	34
	RATED TORQUE m.Nm	6	5	5	7.5	7.5	7.5	8.5	8.5	8.5
	RATED SPEED rpm	15800	37000	3700	28000	28000	27600	39200	38400	38900
OUTPUT LEAD	Signal	Hall			Hall			Hall
Product design

*The above data are from internal test results and do not represent accurate data.

Product image
Motor model		VEC-19 series
MOTOR	TYPE	EC1930			EC1935			EC1946
	LENGTH"L" MM	30mm			35mm			46mm
VOLTAGE	OPERATING RANGE	5~7	10~16	22~26	5~7	10~16	22~26	5~7	10~14	22~26
	NOMINAL V	6	12	24	6	12	24	6	12	24
OUTPUT	OUTPUT RATING W	7.7	11.6	15.4	7	13.8	18.5	9.2	15.4	25.7
	RATED TORQUE m.Nm	7.5	7.5	7.5	9	9	9	10	10	10
	RATED SPEED rpm	10000	15000	20000	7600	15000	20000	9000	15000	25000
OUTPUT LEAD	Signal	内置驱动	Hall	Hall	内置驱动	Hall	Hall	内置驱动	Hall	Hall
Product design

*The above data are from internal test results and do not represent accurate data.

Product image
Motor model		VEC-20 series
MOTOR	TYPE	EC2040			EC2053			EC2063
	LENGTH"L" MM	40mm			53mm			63mm
VOLTAGE	OPERATING RANGE	22~26	28~32	32~38	16~20	22~26	32~38	10~14	22~26	32~38
	NOMINAL V	24	30	36	18	24	36	12	24	36
OUTPUT	OUTPUT RATING W	15.4	16.4	16.4	46.2	47.2	48.2	25	100	220
	RATED TORQUE m.Nm	6.3	6.3	6.3	10	10	10	16	50	70
	RATED SPEED rpm	37500	36700	36050	45680	46380	46940	15000	20000	30000
OUTPUT LEAD	Signal	Hall			Hall			Hall
Product design

*The above data are from internal test results and do not represent accurate data.

Product image
Motor model		VEC-22 series
MOTOR	TYPE	EC2232			EC2240			EC2248
	LENGTH"L" MM	32mm			40mm			48mm
VOLTAGE	OPERATING RANGE	10~14	22~26	28~32	10~16	22~26	32~38	10~14	22~26	32~38
	NOMINAL V	12	24	30	12	24	36	12	24	36
OUTPUT	OUTPUT RATING W	9.7	9.6	9.1	17.6	17.6	17.3	20.5	112	112
	RATED TORQUE m.Nm	6	6	6	12	12	12	8	20	20
	RATED SPEED rpm	15800	15000	14800	14300	14300	14100	25000	50000	50000
OUTPUT LEAD	Signal	Hall			Hall			Hall
Product design

*The above data are from internal test results and do not represent accurate data.

Product image
Motor model		VEC-28 series
MOTOR	TYPE	EC2845			EC2854			EC2864
	LENGTH"L" MM	45mm			54mm			64mm
VOLTAGE	OPERATING RANGE	10~14	22~26	32~38	10~14	22~26	32~38	10~14	22~26	32~38
	NOMINAL V	12	24	36	12	24	36	12	24	36
OUTPUT	OUTPUT RATING W	22.5	22.7	22.9	23.7	25.2	24.4	34.4	34.9	35.9
	RATED TORQUE m.Nm	18	18	18	35	35	35	50	50	50
	RATED SPEED rpm	12200	12300	12400	6600	7000	6800	6700	6800	7000
OUTPUT LEAD	Signal	Hall			Hall			Hall
Product design

*The above data are from internal test results and do not represent accurate data.

Product image
Motor model		VEC-32 series
MOTOR	TYPE	EC3242			EC3260			EC3270
	LENGTH"L" MM	42mm			60mm			70mm
VOLTAGE	OPERATING RANGE	16~20	22~26	32~38	16~20	22~26	32~38	16~20	22~26	32~38
	NOMINAL V	18	24	36	18	24	36	18	24	36
OUTPUT	OUTPUT RATING W	30.8	33.4	38.5	58.7	61.5	59.6	42.5	42.6	42.5
	RATED TORQUE m.Nm	25	25	25	45	45	45	85	85	85
	RATED SPEED rpm	12000	13000	15000	12700	13300	12900	4870	4880	4870
OUTPUT LEAD	Signal	Hall			Hall			Hall
Product design

*The above data are from internal test results and do not represent accurate data.