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)
|
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.
