• CTSM200-445mm Sinusoidal Brushless DC Torque Motor - Large Size High Torque Low-Noise Operation
  • CTSM200-445mm Sinusoidal Brushless DC Torque Motor - Large Size High Torque Low-Noise Operation
  • CTSM200-445mm Sinusoidal Brushless DC Torque Motor - Large Size High Torque Low-Noise Operation
  • CTSM200-445mm Sinusoidal Brushless DC Torque Motor - Large Size High Torque Low-Noise Operation
  • CTSM200-445mm Sinusoidal Brushless DC Torque Motor - Large Size High Torque Low-Noise Operation
  • CTSM200-445mm Sinusoidal Brushless DC Torque Motor - Large Size High Torque Low-Noise Operation
  • CTSM200-445mm Sinusoidal Brushless DC Torque Motor - Large Size High Torque Low-Noise Operation
  • CTSM200-445mm Sinusoidal Brushless DC Torque Motor - Large Size High Torque Low-Noise Operation
  • CTSM200-445mm Sinusoidal Brushless DC Torque Motor - Large Size High Torque Low-Noise Operation
  • CTSM200-445mm Sinusoidal Brushless DC Torque Motor - Large Size High Torque Low-Noise Operation

CTSM200-445mm Sinusoidal Brushless DC Torque Motor - Large Size High Torque Low-Noise Operation

CTSM series brushless DC frameless motors | Specialized for optical platforms of surgical robots and service robots

USD: 500-736

ablity:Monthly Output3000

contact shop

Product Description



Put an end to the vibration and 

roar of large-scale equipment 



CTSM200-445mm Sinusoidal Torque Motor   

Large Size · High Torque · Quiet Operation   


Direct drive technology ●  

Torque ripple < 0.5% ●  

Industrial-grade durability●  

To better adapt to market demands and achieve the goals of miniaturization and lightweighting of brushless motors, through continuous optimization, the CTSM series of frameless brushless DC torque motors with a new design concept have been launched to the market. They feature small size, light body, high power density, high quality, and short production cycle. It provides an excellent solution for designing lightweight and miniaturized servo series for customers.

Functional Features




Multiple size options available (25 - 445mm)

Ultra-high power density, small size, light weight

Directly connected to the equipment to enhance system accuracy and stiffness

Optional stainless steel rotor with high corrosion resistance

Operating temperature range: -40℃ to +55℃

Natural cooling, no need for cooling equipment



Each frame has multiple selectable segment lengths.

Rotor optimized by sinusoidal magnetic field

Low distortion sinusoidal reverse electromotive force waveform, low torque fluctuation

NdFeB material, stable operation in high-temperature environment, high power density

Selectable motor commutation Hall elements

Motor insulation grade F (155℃), also available in H (180℃) and C (210℃) grades

Application

Collaborative robots, service robots, shipborne equipment, aerospace, wechat communication, Beidou navigation, intelligent agriculture, autonomous driving, optical platforms, textile machinery, radar systems, dynamic communication, precision servo systems, CNC machine tools, etc.

Dimensional drawing

CTSM Series Outline Diagram:

Note: There may be a deviation of up to 10% in the motor parameters. Please contact our engineers when selecting the driver.

Model Description

For exampleCTSM50-06A35

C--Centralized winding

T--Torque

S--Servo

M--Motor

50—Frame Size OD 50mm

06--Stator stack thickness mark 06 is 6mm

A---Voltage Amplitude Identification

A—48     B—24    C—60    D—100    E—270    F—80    G—300     H—12

K—144    L—72    M-220    N-540      P-36        R-110

3500r/min is the 1% mark of rotational speed

Product parameters

CTSM200 series of high-efficiency brushless DC torque motors



Project Model

CTSM200- 10A05

CTSM200- 20A03

CTSM200-30A02

CTSM200-45A016

CTSM200-60A009

CTSM200-80A007

Rated torque Tr    [Nm]

10

20

30

42

52

66

Rated current Ir [A]  ±10%

11

13

13

14

10

10

Rated voltage Ur [V]

9.7

10.6

13.3

14.7

23.7

27.2

Peak torque Tmax @    
20% deviation from linearity [Nm]

20

40

60

75

104

118

Peak current Ip[A]  ±10%

22

26

26.6

25

20

17.6

Peak voltage Up [V]

48

48

48

48

48

48

Maximum speed nmax [rpm] ± 10%

500

300

200

160

90

70

Diameter D [mm]

200 or 220 (with shell)

Length L [mm]

10

20

30

45

60

80

Diameter winding head DW [mm]

193

193

193

193

193

193

A Winding Height A Lwa

10

10

10

10

10

10

B Winding Height B Lwb[mm]

12

12

12

12

12

12

Hollow shaft diameter rotor Dr H7 [mm]

130

130

130

130

130

130

Rotor Height I [mm]

15

25

35

52

65

85

Stator and rotor deviation Lsr[mm]

45691

45691

45691

45691

45691

45691

Air gap diameter Dairφ

150

150

150

150

150

150

气隙长度 Air gap diameter Dair

0.6

0.6

0.6

0.6

0.6

0.6

Weight m [g] ±10%

1.6

2.7

3.85

5.8

7.5

9.8

Rotor inertia J [kg*m2]

0.0014

0.0028

0.00416

0.00625

0.00833

0.011

Copper losses PL,r @Tr and 20°C [W]

107

138

172

203

236

271

Torque constant kT @ 20°C [Nm/A] ±10%

0.938

1.56

2.349

3.04

5.22

6.6

Back EMF at Temp [V/r/min-1]

0.096

0.16

0.24

0.31

0.533

0.685

Motor constant kM @ 20°C [Nm/ √W]

1.01

1.75

2.35

2.99

3.39

4.11

Terminal resistance RTT @ 20°C [Ω] ±10%

0.88

0.82

1.02

1.08

2.38

2.72

Terminal inductance LTT * [mH] ±30%

5.1

4.92

5.9

6.36

16.2

20.3

Number of pole pairs

14

14

14

14

14

14

If you wish to change the operating voltage or other motor parameters, please contact the engineering and technical personnel.

CTSM238 series of high-efficiency brushless DC torque motors

Project Model

CTSM238- 20A01

CTSM238- 30A008

CTSM238-40A008

CTSM238-50R01

CTSM238-60C01

CTSM238-80C01

Rated torque Tr    [Nm]

25

36

50

65

75

105

Rated current Ir [A]  ±10%

5.6

6.5

9

5.8

13.5

18

Rated voltage Ur [V]

25

24.7

22.7

40.3

22.5

17.4

Peak torque Tmax @    
20% deviation from linearity[Nm]

48

71

100

180

200

210

Peak current Ip[A]  ±10%

10.8

12.7

18

15.9

36

36

Peak voltage Up [V]

48

48

48

110

60

60

Maximum speed nmax [rpm] ± 10%

100

80

80

91

100

95

Diameter D [mm]

Without shell: 237.6mm; with shell: 255mm. The weight does not include the shell.

Length L [mm]

20

30

40

50

60

80

Diameter winding head DW [mm]

225

225

225

225

225

225

A Winding Height A Lwa

10

10

10

10

10

10

B Winding Height B Lwb[mm]

12

12

12

12

12

12

Hollow shaft diameter rotor Dr H7 [mm]

165

165

165

165

165

165

Rotor Height I [mm]

25

35

45

55

65

85

Stator and rotor deviation Lsr[mm]

45691

45691

45691

45691

45691

45691

Air gap diameter Dairφ

186

186

186

186

186

186

Air gap diameter Dair

0.5

0.5

0.5

0.5

0.5

0.5

Weight m [g] ±10%

3.7

5.2

6.7

8.3

9.8

12.8

Rotor inertia J [kg*m2]

0.0077

0.107

0.0137

0.0168

0.0199

0.026

Copper losses PL,r @Tr and 20°C [W]

140

160

204

235

265

313

Torque constant kT @ 20°C [Nm/A] ±10%

4.5

5.62

5.62

11.3

5.62

5.92

Back EMF at Temp [V/r/min-1]

0.48

0.6

0.6

1.208

0.6

0.63

Motor constant kM @ 20°C [Nm/ √W]

2.13

2.88

3.58

4.3

4.66

6.02

Terminal resistance RTT @ 20°C [Ω] ±10%

4.5

3.8

2.52

7.02

1.47

0.97

Terminal inductance LTT * [mH] ±30%

15.2

15.5

11.34

30

7.35

5.02

Number of pole pairs

17

17

17

17

17

17

If you wish to change the operating voltage or other motor parameters, please contact the engineering and technical personnel.

CTSM300 series of high-efficiency brushless DC torque motors

Project Model

CTSM300-50A008

CTSM300-50G01

CTSM300-100A01

CTSM300-100G008

CTSM300-200A002

CTSM300-200G

Rated torque Tr    [Nm]

100

100

180

180

335

335

Rated current Ir [A]  ±10%

18

3.56

38

5.15

15

6

Rated voltage Ur [V]

15.4

83.5

9.2

73.6

36.2

95.2

Peak torque Tmax @    
20% deviation from linearity[Nm]

314

372

540

540

1005

1005

Peak current Ip[A]  ±10%

56.5

13.3

114

15.45

45

18

Peak voltage Up [V]

48

310

48

310

48

310

Maximum speed nmax [rpm] ± 10%

78

100

92

80

20

50

Diameter D [mm]

Aluminum shell with a diameter of φ320mm, featuring mounting screw holes.

Length L [mm]

50(77)

50(77)

100(127)

100(127)

200(227)

200(227)

Diameter winding head DW [mm]

290

290

290

290

290

290

A Winding Height A Lwa

12

121

12

12

12

12

B Winding Height B Lwb[mm]

15

15

15

15

15

15

Hollow shaft diameter rotor Dr H7 [mm]

210

210

210

210

210

210

Rotor Height I [mm]

50

50

100

100

200

200

Stator and rotor deviation Lsr[mm]

0

0

0

0

0

0

Air gap diameter Dairφ

241.6

241.6

241.6

241.6

241.6

241.6

Air gap diameter Dair

1

1

1

1

1

1

Weight m [g] ±10%(Excluding the casing)

12.2

12.2

22.8

22.8

44

44

Rotor inertia J [kg*m2]

0.0402

0.0402

0.075

0.075

0.145

0.145

Copper losses PL,r @Tr and 20°C [W]

277

297

350

378

541

571

Torque constant kT @ 20°C [Nm/A] ±10%

5.58

28.1

4.73

35.2

22.3

56.3

Back EMF at Temp [V/r/min-1]

0.615

3.1

0.52

3.875

2.46

6.2

Motor constant kM @ 20°C [Nm/ √W]

6.05

5.91

9.64

9.3

14.4

14.1

Terminal resistance RTT @ 20°C [Ω] ±10%

0.855

23.5

0.24

14.3

2.4

15.9

Terminal inductance LTT* [mH] ±30%

6.4

162.4

2.3

125

4.5

39.7

Number of pole pairs

23

23

23

23

23

23

If you wish to change the operating voltage or other motor parameters, please contact the engineering and technical personnel.

CTSM315 series of high-efficiency brushless DC torque motors

Project Model

CTSM315-03A01

CTSM315-03G02

CTSM315-06A005

CTSM315-06G005

CTSM315-09G02

CTSM315-15G004

Rated torque Tr    [Nm]

65

65

130

130

190

330

Rated current Ir [A]  ±10%

15

4.65

15

2.3

13.6

4

Rated voltage Ur [V]

12.7

43.2

18.2

128.5

24.7

140

Peak torque Tmax @    
20% deviation from linearity[Nm]

240

260

330

312

570

735

Peak current Ip[A]  ±10%

57

18.6

38.1

5.55

40.8

8.9

Peak voltage Up [V]

48

310

48

310

310

310

Maximum speed nmax [rpm] ± 10%

100

200

50

50

200

40

Diameter D [mm]

Without shell: φ315; with shell: φ345

Length L [mm]

30(59)

30(59)

60(89)

60(89)

90(119)

150(179)

Diameter winding head DW [mm]

305

305

305

305

305

305

A Winding Height A Lwa

12

12

12

12

12

12

B Winding Height B Lwb[mm]

17

15

17

15

15

15

Hollow shaft diameter rotor Dr H7 [mm]

200

200

200

200

200

200

Rotor Height I [mm]

35

35

65

65

95

155

Stator and rotor deviation Lsr[mm]

2

2

2

2

2

2

Air gap diameter Dairφ

248

248

248

248

248

248

Air gap diameter Dair

0.7

0.7

0.7

0.7

0.7

0.7

Weight m [g] ±10%(Excluding the casing)

10.5

10.5

18.3

18.3

26.2

41.5

Rotor inertia J [kg*m2]

0.03786

0.03786

0.071

0.071

0.103

0.1677

Copper losses PL,r @Tr and 20°C [W]

190

200

273

295

346

559

Torque constant kT @ 20°C [Nm/A] ±10%

4.35

14

8.75

56.5

14.2

82.7

Back EMF at Temp [V/r/min-1]

0.48

1.55

0.96

6.22

1.57

9.11

Motor constant kM @ 20°C [Nm/ √W]

4.74

4.62

7.94

7.56

10.44

14

Terminal resistance RTT @ 20°C [Ω] ±10%

0.42

9.26

1.22

55.8

1.87

34

Terminal inductance LTT* [mH] ±30%

5.9

60.9

11.5

468

20.3

330

Number of pole pairs

23

23

23

23

23

23

If you wish to change the operating voltage or other motor parameters, please contact the engineering and technical personnel.

CTSM415 series of high-efficiency brushless DC torque motors

Project Model

CTSM415-50G004

CTSM415-100G01

CTSM415-155G005

CTSM415-210G003

CTSM415-265G03

CTSM415-320A02

Rated torque Tr    [Nm]

200

400

600

800

1000

1200

Rated current Ir [A]  ±10%

3

14.2

10.7

7.1

10.6

21.5

Rated voltage Ur [V]

106

28.5

52.4

114

95

45

Peak torque Tmax @    
20% deviation from linearity [Nm]

574

1600

1800

2500

3000

3500

Peak current Ip[A]  ±10%

8.62

63

35

22.2

32.2

64

Peak voltage Up [V]

310

310

310

310

310

310

Maximum speed nmax [rpm] ± 10%

40

100

50

25

30

50

Diameter D [mm]

440

440

440

440

440

440

Length L [mm]

50(77)

100(127)

155(182)

210(237)

265(292)

320(347)

Diameter winding head DW [mm]

403

403

403

403

403

403

A Winding Height A Lwa

12

12

12

12

12

12

B Winding Height B Lwb[mm]

15

15

15

15

15

15

转子内径 Hollow shaft diameter rotor Dr H7 [mm]

315

315

315

315

315

315

Rotor Height I [mm]

55

110

165

220

275

330

Stator and rotor deviation Lsr[mm]

2

5

5

5

5

5

Air gap diameter Dairφ

345

345

345

345

345

345

Air gap diameter Dair

1

1

1

1

1

1

Weight m [Kg] ± 10%(Without a casing)

21

40

60.3

80.5

101

121

Rotor inertia J [kg*m2]

0.166

0.318

0.5

0.67

0.835

0.99

Copper losses PL,r @Tr and 20°C [W]

323

418

560

703

825

968

Torque constant kT @ 20°C [Nm/A] ±10%

71.6

28.5

57

114

95

57

Back EMF at Temp [V/r/min-1]

7.78

3.1

6.2

12.4

10.35

6.2

Motor constant kM @ 20°C [Nm/ √W]

11.94

19.8

25.76

30.5

35.15

39.4

Terminal resistance RTT @ 20°C [Ω] ±10%

36

2.08

4.9

14

7.35

2.1

Terminal inductance LTT* [mH] ±30%

315

23

35

168

95

115

Number of pole pairs

23

23

23

232

23

23

If you wish to change the operating voltage or other motor parameters, please contact the engineering and technical personnel.

CTSM445 series of high-efficiency brushless DC torque motors

Project Model

CTSM445-60A002

CTSM445-100G006

CTSM445-150G005

CTSM445-200G005

CTSM445-300

CTSM445-400G003

Rated torque Tr    [Nm]

316

500

800

1000

1300

1700

Rated current Ir [A]  ±10%

16.2

11

14

16

21

18

Rated voltage Ur [V]

20.5

46.2

50

57

49.5

81.5

Peak torque Tmax @    
20% deviation from linearity [Nm]

742

1000

1600

2000

3000

3800

Peak current Ip[A]  ±10%

38

22

28

32

48

42

Peak voltage Up [V]

48

310

310

310

310

310

Maximum speed nmax [rpm] ± 10%

22

60

50

45

45

30

Diameter D [mm]

480

480

480

480

480

480

Length L [mm]

60

100

150

200

300

400

Diameter winding head DW [mm]

435

435

435

435

435

435

A Winding Height A Lwa

11

11

11

11

11

11

B Winding Height B Lwb[mm]

14

14

14

14

14

14

Hollow shaft diameter rotor Dr H7 [mm]

340

340

340

340

340

340

Rotor Height I [mm]

70

110

160

210

310

410

Stator and rotor deviation Lsr[mm]

5

5

5

5

5

5

Air gap diameter Dairφ

375

375

375

375

375

375

Air gap diameter Dair

1

1

1

1

1

1

Weight m [Kg] ± 10%(Without a casing)

33

51

75

100

145

190

Rotor inertia J [kg*m2]

0.302

0.475

0.69

0.906

1.338

1.77

Copper losses PL,r @Tr and 20°C [W]

330

510

760

905

1040

1460

Torque constant kT @ 20°C [Nm/A] ±10%

20.1

46

57.2

63.5

63.5

95.3

Back EMF at Temp [V/r/min-1]

2.18

5

6.2

6.88

6.88

10.3

Motor constant kM @ 20°C [Nm/ √W]

16.7

22.7

29.1

33.8

45.6

45.1

Terminal resistance RTT @ 20°C [Ω] ±10%

1.3

4.2

3.9

3.55

2.4

4.55

Terminal inductance LTT* [mH] ±30%

13.5

43.35

41.2

44

32.6

58.5

Number of pole pairs

29

29

29

29

29

29

If you wish to change the operating voltage or other motor parameters, please contact the engineering and technical personnel.

Custom Process

Demand communication

Scheme design

Sample production

Mass production

After-sales service

Technical Support

Service

Dedicated service, along the way

Warranty worry-free, extended repair, often return to promote optimization, peace of mind choice, all in control.

    Online customer service        Efficient logistics               Deliver on time             Quality Assurance       Technical maintenance     Manufacturer support

After-sale guarantee

After-sales service: We provide comprehensive after-sales technical support, if you encounter any problems in the process of use, the professional after-sales engineer team will respond quickly, through telephone, mail or remote assistance, to provide you with detailed solutions. We also provide regular return visits to our products to understand how they are used and to collect your feedback in order to continuously optimize our products and services. In addition, in strict accordance with the quality assurance policy, we provide free repair or replacement services for products with quality problems during the warranty period, so that you have no worries.

Supplier Information

Company Name:Smart Tech Joint Motor

Contact Email:service78@ttbridge.com

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