HJ155 Servomotors

HJ155 Brushless Series Servomotor

The HJ series combines the latest high power (NdFeB) magnets with a new large diameter shaft and short body design. The HJ motor offers increased inertia, performing with high stability at low speeds and has been designed for machine tool applications in particular. Frame sizes in the new range are 96, 116, 155 mm square.

Model	Technical Data	Drawings
HJ155	Continuous Stall Torque TENV, 11.5 - 32 Nm (102-283 lb-in)	Inches	Metrics

Technical Data

Parameter	Unit	HJ155 A8-64	HJ155 A8-88	HJ155 A8-130	HJ155 A8-180	HJ155 B8-88	HJ155 B8-130	HJ155 B8-180	HJ155 B8-260	HJT155 D8-130	HJT155 D8-180	HJ116 D8-260	HJT155 D8-360	HJT155 E8-130	HJT155 E8-180	HJT155 E8-260	HJT155 E8-360	HJT155 G8-130	HJT155 G8-180	HJT155 G8-260	HJT155 G8-360
Voltage gradient no load	volts/krpm	64	88	130	180	88	130	180	260	130	180	260	360	130	180	260	360	130	180	260	360
Max.Motor EMF	line-line volts	320	440	650	700	440	650	700	700	650	700	700	700	650	700	700	700	650	700	700	700
Max. Speed	RPM	5000	5000	5000	3900	5000	5000	3900	2700	5000	3900	2700	1900	5000	3900	2700	1900	5000	3900	2700	1900
Continuous stall torque TENV	Nm	11.5	11.5	11.5	11.5	16	16	16	16	21	21	21	21	25	25	25	35	32	32	32	32
Continuous stall torque TENV	Ib-in	102	102	102	102	140	140	140	140	190	190	190	190	220	220	220	310	280	280	280	280
Peak Stall Torque	Nm	33	33	33	33	51	51	51	51	66	66	66	66	74	74	74	74	103	103	103	103
Peak Stall Torque	lb-in	300	300	300	300	450	450	450	450	580	580	580	580	660	660	660	660	290	290	290	290
Continuous stall current rms	Amps	15	11.2	7.6	5.5	16	10.5	7.6	5.3	13.8	10	6.9	5.0	16	11.9	8.2	5.9	20	15	10.5	7.6
Rotor Polar Moment of Inertia	Kg.cm²	22	22	22	22	33	33	33	33	54	54	54	54	65	65	65	65	86	86	86	86
(Inclusive of resolver inertia)	lb-in Sec²	0.019	0.019	0.019	0.019	0.029	0.029	0.029	0.029	0.061	0.061	0.061	0.061	0.058	0.058	0.058	0.058	0.076	0.076	0.076	0.076
Cogging Torque	Nm	0.28	0.28	0.28	0.28	0.36	0.36	0.36	0.36	0.46	0.46	0.46	0.46	0.52	0.52	0.52	0.52	0.64	0.64	0.64	0.64
Cogging Torque	lb-in	2.5	2.5	2.5	2.5	3.2	3.2	3.2	3.2	4.07	4.07	4.07	4.07	4.6	4.6	4.6	4.6	5.7	5.7	5.7	5.7
Torque constant 3 X Kt (line-line)	Nm/Amp	0.75	1.03	1.5	2.1	1.03	1.5	2.1	3.03	1.5	2.1	3.03	4.2	1.5	2.1	3.0	4.2	1.5	2.1	3.0	4.2
Torque constant 3 X Kt (line-line)	lb-in/Amp	6.6	9.1	13.5	19	9.1	13.5	19	27	13.5	19	27	37	13.5	19	27	37	13.5	19	27	37
Resistance (line-line)	Ohms	0.37	0.75	1.6	3.0	0.39	0.84	1.6	3.3	0.58	1.11	2.5	4.5	0.52	0.86	1.8	3.4	0.35	0.63	1.27	2.5
Inductance (line-line)	Millihenrys	2.0	4.1	8.7	16	2.5	5.5	10.1	22	6.3	12.1	26	48	5.9	10.2	21	41	4.3	7.6	16	30
Insulation Class		F	F	F	F	F	F	F	F	F	F	F	F	F	F	F	F	F	F	F	F
Max. ambient temperature	°C	40	40	40	40	40	40	40	40	40	40	40	40	40	40	40	40	40	40	40	40
Max. ambient temperature	°F	104	104	104	104	104	104	104	104	104	104	104	104	104	104	104	104	104	104	104	104
Thermal time constant	Minutes	40	40	40	40	50	50	50	50	60	60	60	60	70	70	70	70	70	70	70	70
Thermal resistance	°C/Watt	0.55	0.55	0.55	0.55	0.56	0.56	0.56	0.56	0.42	0.42	0.42	0.42	0.35	0.35	0.35	0.35	0.35	0.35	0.35	0.35
Thermal resistance	°F/Watt	0.99	0.99	0.99	0.99	1.01	1.01	1.01	1.01	0.75	0.75	0.75	0.75	0.62	0.62	0.62	0.62	0.62	0.62	0.62	0.62
Static friction torque	Nm	0.14	0.14	0.14	0.14	0.14	0.14	0.14	0.14	0.14	0.14	0.14	0.14	0.14	0.14	0.14	0.14	0.14	0.14	0.14	0.14
Static friction torque	Ib-in	1.23	1.23	1.23	1.23	1.23	1.23	1.23	1.23	1.23	1.23	1.23	1.23	1.23	1.23	1.23	1.23	1.23	1.23	1.23	1.23
Motor weight	Kg	12.5	12.5	12.5	12.5	15	15	15	15	20	20	20	20	23	23	23	23	28	28	28	28
Motor weight	lb	28	28	28	28	35	35	35	35	44	44	44	44	51	51	51	51	62	62	62	62

Servo Dynamics located in Chatsworth, California designs and manufactures high performance servo control systems and is committed to total customer satisfaction. Servo Dynamics is a registered ISO 9001:2000 supplier.


	818-700-8600 sales@servodynamics.com