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 TORQUE   MOTORS (ROTARY SYNCHRONOUS MOTORS series RM-24

Ruchservomotor JV designed and produced three series of torque motors: for instrument-industry (series RM-24, series RSMR-24)
and for machine-building industry (series RM-36).
The feature of torque motors series RM-24 is small dimensions for low dimensions(profile) position systems.

Motor description:
Torque motor (synchronous rotary motor ) consist of a fixed primary coil unit (stator or primary part) and rotate magnet ring (rotor or secondary part).
The stator is composed of a coil unit that is encapsulated in thermally conductive epoxy.
The rotor consists of steel ring with glued permanent magnets. The smoothness of movement is achieved by sinusoidal commutation of currents in the coils.

Advantages: Absence of mechanical transmissions, high precision, repeatability and resolution, no backlash, smooth movement, low profile, hollow shaft.

Applications Machine tools; high torque rotary axis, pick and place machines, indexing tables, for instrument-making, semiconductor manufacturing.



Glossary
for torque motors:


Overall and join dimensions of rotary synchronous motors, series RM-24

 

Continuous torque at
convection cooling MA,(Nm)

Peak torque
Mp,(Nm)

Max. velocity Np at MА and 540 V DC
[S/T] (coil at 20C)
Np,(rpm )
* - 310 VDC

Max. velocity Na at MА and 540 V DC
[S/T] (coil at 20C)
Na,(rpm )
* - 310 VDC

Max. velocity Nw at MА and 540 V DC
[S/T] (coil at 20C)
Nw,(rpm )
* - 310 VDC

Continuous current at Mw, Nw
(coil at. 120C),

Continuous current at Ma, Na
(coil at 120C)

Peak current at Mp and N=0)

Resistance
at 20C

 

Inductance 

 

Motor height

 

Number of poles pairs
cable exits down (A)

 

cable exits to the side (B)

 

MA,(Nm)
Mp,(Nm)
Np,(rpm )
Na,(rpm )
Nw,(rpm )
Iw,(Arms )
Ia,(Arms )
Ip,(Arms )
Rph, (Ом)
Lph, (mH)
H, (mm)
P
JPEG
JPEG
RM24-81-25-HS1
6.4
13.7
395
738
616
3.1
1.8
5.8
12.5
39
50
10
RM24-81-25-HT1
6.4
13.7
883
1368
1203
5.4
3.2
10.0
4.2
13
50
10
RM24-81-50-GS1
13.2
27.4
540
860
721
7.7
4,2
12,8
3,8
16
75
10
RM24-81-50-GT1
13.2
27.4
1072
1558
1354
13.3
7,3
22,2
1,3
5
75
10
RM24-81-75-GS1
19.9
41.2
314
552
437
8.0
4.2
12.8
5.1
24
100
10
RM24-81-75-GT1
19.9
41.2
672
1017
857
13.9
7.3
22.2
1.7
8
100
10
RM24-81-100-GS1
26.6
54.9
198
395
297
8.2
4.2
12.8
6.4
32
125
10
RM24-81-100-GT1
26.6
54.9
472
746
611
14.2
7.3
22.2
2.1
11
125
10
RM-24-81-125-GS1
33.3
68.6
127
304
213
8.3
4.2
12.8
7.7
40
150
10
RM-24-81-125-GT1
33.3
68.6
350
584
464
14.4
7.3
22.2
2.6
13
150
10
RM24-81-150-GS1
40.1
82.3
78
243
157
8.4
4.2
12.8
9.0
48
175
10
RM24-81-150-GT1
40.1
82.3
268
475
367
14.5
7.3
22.2
3.0
16
175
10
RM24-107-25-GS1
11.0
24.3
642
998
882
6.6
3,9
12,8
3,3
11
50
13
RM24-107-25-GT1
11.0
24.3
1245
1785
1623
11.5
6,8
22,2
1,1
4
50
13
RM24-107-50-GS1
22.3
48.6
269
473
390
7.3
4.0
12,8
5.0
21
75
13
RM24-107-50-GT1
22.3
48.6
575
869
754
12.8
6.9
22.2
1.7
7
75
13
RM24-107-75-GS1
33.7
72.9
141
299
229
7.6
4.0
12,8
6.8
32
100
13
RM24-107-75-GT1
33.7
72.9
350
563
471
13.1
6.9
22.2
2.3
11
100
13
RM-24-107-100-GT1
45.0
97.2
236
410
330
13.4
7.0
22.2
2.8
14
125
13
RM-24-107-100-GS1
45.0
97.2
75
212
149
7.7
4.0
12,8
8.5
43
125
13
RM24-107-125-GS1
56.4
121.6
33
160
101
7.8
4.0
12,8
10.2
53
150
13
RM24-107-125-GT1
56.4
121.6
166
319
247
13.6
7.0
22.2
3.4
18
150
13
RM24-107-150-ES1
67.8
145.9
40
149
93
9.3
4.8
14,3
8,6
52
175
13
RM24-107-150-ET1
67.8
145.9
162
295
225
16.2
8,2
24,7
2,9
11
175
13

Continuous torque at
convection cooling MA,(Nm)

Peak torque
Mp,(Nm)

Max. velocity Np at MА and 540 V DC
[S/T] (coil at 20C)
Np,(rpm )
* - 310 VDC

Max. velocity Na at MА and 540 V DC
[S/T] (coil at 20C)
Na,(rpm )
* - 310 VDC

Max. velocity Nw at MА and 540 V DC
[S/T] (coil at 20C)
Nw,(rpm )
* - 310 VDC

Continuous current at Mw, Nw
(coil at. 120C),

Continuous current at Ma, Na
(coil at 120C)

Peak current at Mp and N=0)

Resistance
at 20C

 

Inductance

 

Motor height

 

cable exits down (A)

 

cable exits to the side (B)

 

RM24-134-25-GS1
16.7
37.9
382
627
552
6.4
3,8
12,8
4,1
13
50
16
RM24-134-25-GT1
16.7
37.9
773
1135
1031
11.0
6,6
22,2
1,4
4
50
16
RM24-134-50-GS1
33.8
75.9
147
295
237
7.0
3.9
12.8
6.3
27
75
16
RM24-134-50-GT1
33.8
75.9
347
549
473
12.1
6.7
22.2
2.1
9
75
16
RM24-134-75-GS1
51.0
113.8
65
184
134
7.3
3.9
12.8
8.4
40
100
16
RM24-134-75-GT1
51.0
113.8
203
353
291
12.6
6.7
22.2
2.8
13
100
16
RM24-134-100-ES1
72.1
151.7
54
150
105
8.8
4,6
14,3
7,6
43
125
16
RM24-134-100-ET1
72.1
151.7
169
292
234
15.2
8,0
24,7
2.5
14
125
16
RM24-134-125-ES1
90.3
189.6
23
113
71
8.9
4,6
14,3.
9,2
54
150
16
RM24-134-125-ET1
90.3
189.6
119
226
174
15.4
8,0
24,7
3,1
18
150
16
RM24-134-150-ES1
108.5
228
1
88
47
9.0
4,6
14,3
10,8
65
175
16
RM24-134-150-ET1
108.5
228
85
183
135
15.6
8,0
24,7
3,6
22
175
16
RM24-161-25-GS1
23.5
54.6
244
428
373
6.2
3,7
12.8
4,9
16
50
19
RM24-161-25-GT1
23.5
54.6
519
782
708
10.8
6,4
22,2
1,6
5
50
19
RM24-161-50-GS1
47.6
109.1
83
199
156
6.8
3.8
12.8
7.5
32
75
19
RM24-161-50-GT1
47.6
109.1
225
375
321
11.8
6.5
22.2
2.5
11
75
19
RM24-161-75-GS1
72
164
21
122
84
7.1
3.8
12.8
10.1
48
100
19
RM24-161-75-GT1
72
164
104
240
194
12.3
6.6
22.2
3.4
16
100
19
RM24-161-100-ES1
101.5
218
146
100
64
8.6
4,5
14,3
9,2
52
125
19
RM24-161-100-ET1
101.5
218
293
198
155
14.8
7,8
24,7
3,1
17
125
19
RM24-214-25-GS1
40
97
111
232
197
6.0
3.6
12.8
6,2
21
50
25
RM24-214-25-GT1
40
97
269
432
387
10.4
6.2
22.2
2,2
7
50
25
RM24-214-50-GS1
82
194
23
105
76
6.6
3.7
12.8
10,0
43
75
25
RM24-214-50-GT1
82
194
23/107
204
170
11.4
6.3
22.2
3,3
14
75
25
RM24-214-75-ES1
131
291
11
74
49
8.1
4,4
14,3
9,7
52
100
25
RM24-214-75-ET1
131
291
75
148
115
14.0
7,5
24,7
3,2
17
100
25
RM24-214-100-ES2
175
388
59
126
96
16.5
8.7
28,5
3,1
17
125
25
RM24-214-100-ET2
175
388
148
237
200
28.6
16.1
49,4
1,0
6
125
25
RM24-214-125-ES2
220
485
36
97
70
16.8
8,8
28.5
3,7
22
150
25
RM24-214-125-ET2
220
485
109
185
152
29.0
15,2
49,4
1.2
7
150
25
RM24-214-150-ES2
264
582
20
77
52
16.9
8,8
28,5
4,3
26
175
25
RM24-214-150-ET2
264
582
82
151
120
29.3
15.2
49,4
1.4
9
175
25
RM24-268-25-ES1
66
151
79
164
139
16.
4,2
14,3
5,9
27
50
31
RM24-268-25-ET1
66
151
192
308
274
12.0
7,2
24,7
2,0
9
50
31
RM24-268-50-ES1
133
303
16
74
53
7.8
4,2
14,3
9,0
11
75
31
RM24-268-50-ET1
133
303
76
145
120
13.2
7,3
24,7
3,0
4
75
31
RM24-268-75-ES2
201
454
51
108
85
15.8
8.5
28,5
3,0
17
100
31
RM24-268-75-ET2
201
454
127
203
174
27.4
14,8
49,4
1,0
6
100
31
RM24-268-100-ES2
269
606
27
77
56
16.2
8.6
28.5
3,8
23
125
31
RM24-268-100-ET2
269
606
85
148
122
28.0
14,9
49.4
1.3
8
125
31
RM24-268-125-ES2
338
757
12
58
39
16.4
8,6
28,5
4,6
29
150
31
RM24-268-125-ET2
338
757
60
115
92
28.4
14,9
49,4
1,5
10
150
31
RM24-268-150-ES2
406
908
1
46
27
16.6
8.6
28,5
5,4.
34
175
31
RM24-268-150-ET2
406
908
43
93
71
28.7
14,9
49,4
1.8
11
175
31

Длительный
момент при
конвекц.
охлаждении

 

 

Пиковый
момент

 

 

Макс.
скорость при
Mp и 310 VDC
[S/T],


Макс.
скорость при
Mа и 310 VDC
[S/T],


Макс.
скорость при
Mw и 310 VDC
[S/T],


Длительн. ток при Mw, Nw
(обмотка при. 120C),вод.охл

 

Длительн. ток при Ma, Na
(обмотка при 120C)

 

Пиковый ток при конв. охл.
(обмотка при 20C)

 

Электрич.
сопротивле-
ние
при 20C

 

Электрическая
индуктивность

 

 

Высота двигателя
(без учёта
вывода кабеля)

 

кабель вниз (A)
кабель вбок (B)

 

 

Note:
1. Peak current Ip is create peak torque Mp (2…3sec).
2. Air gap between stator and rotor must be maintained according to the specified dimension tolerances .
3. Maximal temperature of rotor should be less than 70°C.
    The stator has built-in thermal sensor threshold type on temp 120 °C.
4. [S/T] - values at Star/Triangle connection of phases
5. All data tolerance ±10%.
6. Maximal permissible voltage 600 VDS.

Order key for rotary synchronous motors

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