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Permanent magnet direct drive motor for mill
Permanent magnet direct drive motor for mill

LongyanPermanent magnet direct drive motor for mill

Ball mill is the key equipment for crushing materials after they have been broken. It is widely used in the fields of ore, coal, cement, electric power, ceramics, glass, chemical fertilizer, metallurgy, electronics, chemical industry, building materials, magnetic materials, etc.

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LongyanMill series permanent magnet motor

Phone:400-888-8888

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Product description

Application field:
Ball mill is the key equipment for crushing materials after they are crushed. It is widely used in minerals, coal, cement, electric power, ceramics, glass, fertilizers, metallurgy, electronics, chemical industry, building materials, magnetic materials and other fields.

 

Driving status:
At present, the drum speed of a large number of existing ball mills is mostly between 17r/min～32r/min, and the running speed of the small ring gear is mostly between 120r/min～200r/min. Generally, an asynchronous motor is used to drive the transmission mode of the small ring gear through a belt pulley or reducer. There are defects such as low efficiency, large area, large maintenance, large vibration and noise, poor site environment, poor starting ability, and large starting impact.

 

Direct drive principle:
● The excitation magnetic field of the asynchronous motor is provided by the stator winding, and a distributed winding with q≥2 is required to ensure the sinusoidal nature of the magnetic field. Due to the limitation of the number of slots, it is difficult to make it multi-pole. The excitation magnetic field of the permanent magnet motor is generated by the permanent magnet. The sinusoidal nature of the magnetic field can be ensured by optimizing the shape of the pole arc, and the multi-pole low-speed direct drive can be realized by using the true fractional slot concentrated winding. Select the speed of the small ring gear as the rated speed of the permanent magnet direct drive motor, eliminating the intermediate speed change link to realize the direct drive of the ball mill.
● Motors can be guided for installation

 

Selection table of permanent magnet direct drive motor for ball mill

Motor model

Rated power kW

Rated voltage V

Rated current A

Rated speed r/min

Rated torque kN*m

Starting torque multiple

Maximum torque multiple

Efficiency %

Power factor

YTZ400-45-20

45

380

75

192

2.238

1.8

2.2

95.3

0.96

168

2.558

YTZ400-55-20

55

380

91

192

2.736

1.8

2.2

95.4

0.96

168

3.126

YTZ400-75-20

75

380

124

192

3.730

1.8

2.2

95.5

0.96

168

4.263

YTZ400-90-20

90

380

149

192

4.477

1.8

2.2

95.6

0.96

168

5.117

YTZ500-110-30

110

380

181

192

5.471

1.8

2.2

95.8

0.96

168

6.253

YTZ500-132-30

132

380

218

192

6.566

1.8

2.2

95.9

0.96

168

7.054

YTZ500-160-30

160

380

263

192

7.958

1.8

2.2

96.1

0.96

168

9.095

YTZ500-185-30

185

380

303

192

9.202

1.8

2.2

96.3

0.96

168

10.516

YTZ630-210--30

210

380

344

192

10.445

1.8

2.2

96.5

0.96

168

11.948

YTZ630-245--30

245

380

400

192

12.186

1.8

2.2

96.6

0.96

168

13.927

YTZ630-280--30

280

380

457

192

13.927

1.8

2.2

96.7

0.96

168

15.917

YTZ630-320--30

320

380

522

192

15.917

1.8

2.2

96.9

0.96

168

18.191

YTZ630-400--30

400

380/6K/10K

652/42/25

192

19.896

1.8

2.2

97.1

0.96

168

22.738

YTZ800-500--30

500

380/6K/10K

822/52/32

192

24.870

1.8

2.2

97.2

0.95

168

28.423

YTZ800-630--30

630

380/6K/10K

1034/66/40

192

31.336

1.8

2.2

97.3

0.95

168

35.813

YTZ800-800-30

800

380/6K/10K

1326/84/51

192

39.792

1.8

2.2

97.5

0.94

168

45.477

YTZ1000-1000-30

1000

6K/10K

105/63

192

49.740

1.8

2.2

97.5

0.94

168

56.845

YTZ1000-1250-30

1250

6K/10K

132/80

192

62.174

1.8

2.2

97.5

0.94

168

71.057

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