Out of Balance Weight Adjustment

BLz 03-22 can be adjusted by either inner or outer weights provided both ends are set the same.

BLz 24-80 When adjusting O/B weights slacken screw in INNER weight only. Adjust inner weight to required force on percentage scale and retighten screw. Adjust opposite end to the same percentage.

IT IS IMPORTANT THAT BOTH ENDS ARE THE SAME AND IN LINE

Clamping screws MUST always be on the same side of the vibrator. Use a minimum, Property Class Grade 8.8 bolts, see table below for torque settings. (Clamp screws not lubricated)

 

Cut through OBW

Size

Torque (N.m)

Size

Torque (N.m)

Capscrews/

Setscrews

Capscrews/

Setscrews

M 5

6.5

M12

96

M 6

11

M16

176

M 8

27

M20

340

M10

56

M24

490


Use the above figures for out of balance weight screws only.



USE OF VIBRATORS ABOVE POLE SPEEDS

Force must be reduced by setting the out of balance weights back. The tables below give the maximum allowed speed for various percentages of full centrifugal force. Refer to thermistor connection note on page 1 and page 9 for use with variable speed drives.


Weights setting at % of full CF

 

Max. Speed/50-60 Hz. Vibrators


Hertz

2 Pole

4 Pole

6 Pole

8 Pole

50 Hz

60 Hz

50 Hz

60 Hz

50 Hz

60 Hz

50 Hz

60 Hz

50 Hz

60 Hz

100

50

60

2880

3456

1440

1728

960

1152

720

864

90

52.7

63.2

3036

3643

1518

1821

1012

1214

759

910

80

55.9

67

3220

3864

1610

1932

1073

1288

805

965

70

59.8

71.7

3442

4130

1721

2065

1147

1377

861

1032

60

64.5

77.4

3718

4462

1859

2231

1239

1487

923

1115

50

70.7

84.8

4073

4887

2036

2444

1358

1629

1018

1215

40

79

94.8

4554

5464

2277

2732

1518

1821

1138

1365

30

91.3

109.5

5258

6310

2629

3155

1753

2103

1315

1576

20

112

134

6440

7728

3220

3864

2147

2576

1613

1930

10

158

190

9107

10930

4554

5464

3036

3643

2275

2736

Guideline values for maximum speeds are grease limiting speed x 3 for ball bearings & 2.2 for roller bearings.

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