Grate Ball Mill Capacities

Mill Size (I.D. Shell x Grinding Length) Feed

Feed

** Grind

*% 200 Mesh

1 ¼”

20 Mesh

35-40

¾”

35 Mesh

45-55

½”

48 Mesh

55-65

½”

65 Mesh

65-75

^3/8”

80 Mesh

75-82

^3/8”

100 Mesh

82-88

¼”

150 Mesh

88-95

¼”

200 Mesh

95-98

5 ½ x 4

142

118

100

80

61

50

40

31

6 ½ x 6

215

176

151

120

92

75

60

47

6 ½ x 5

310

255

215

175

138

108

88

67

7 ½ x 7

435

355

305

245

194

151

123

94

7 ½ x 5

480

400

340

270

215

172

138

108

8 ½ x 7

670

560

470

380

300

240

193

150

8 ½ x 6

880

730

620

500

385

305

250

193

8 ½ x 8

1,180

970

830

670

520

410

330

260

9 ½ x 7

1,430

1,190

1,010

820

640

510

410

325

9 ½ x 9

1,840

1,540

1,300

1,060

820

650

530

420

10 ½ x 10

2,770

2,300

1,970

1,600

1,240

980

780

620

10 ½ x 14

3,740

3,100

2,650

2,160

1,680

1,330

1,080

830

11 ½ x 12

4,410

3,630

3,140

2,500

1,950

1,560

1,260

970

11 ½ x 14

5,020

4,130

3,570

2,850

2,220

1,770

1,430

1,100

12 ½ x 12

5,580

4,670

4,010

3,220

2,510

1,990

1,610

1,250

12 ½ x 14

6,430

4,620

4,620

3,710

2,900

2,290

1,860

1,440