SFM Frameless Torque Motor                                

Build your own torque motor
Advantages
  • Direct Drive technology
  • Operation with full torque starting from stand still
  • Quiet operation
  • Long life and reliability
  • Simple installation and mechanical design
  • Easy to replace
  • Wide hollow shaft
HIGH
  • Performance
  • Pole number
  • Dynamism and accuracy
  • Efficiency
  • Torque density
  • Precise torque controllability
  • Range of voltage
  • Overload capability
NO
  • Maintanence
  • Need for gearbox
  • ​Oil leakage problem
  • Cooling
LOW
  • Cogging torque
  • ​Weight

U = 380 / 400 V                                                           Mmax = 1,5 x Mn                                                           Imax = 1,5 x In

Motor Code
Pole Number
Rated Continuous Output Power
Pn  (kW)
​Speed at Rated Power
nnom  (rpm)
Continuous Torque
Mn (nm)
Frequency at Rated Power
Fn (Hz)
Torque Sensitivity ​kt (Nm/A)
Continuous Current
In (A)
Inertia
Ja  (kg.m2)
SFM71-80
66
0,24
100
23
55
25,6
0,9
0,007554
SFM71-80
66
0,52
250
20
138
12,5
1,6
0,007554
SFM71-80
66
0,80
450
17
248
8,1
2,1
0,007554
SFM71-120
66
0,37
100
35
55
26,9
1,3
0,010672
SFM71-120
66
0,79
250
30
138
13,0
2,3
0,010672
SFM71-120
66
1,23
450
26
248
8,1
3,2
0,010672
SFM71-160
66
0,49
100
47
55
27,6
1,7
0,013791
SFM71-160
66
1,05
250
40
138
13,3
3,0
0,013791
SFM71-160
66
1,51
450
32
248
8,6
3,7
0,013791