Adjustment Of Unbalances - NetterVibration NEA Series Installation And Operating Instructions Manual

8 Adjustment of unbalances

For all vibrators of the series NEA and NEG, there is the possibility of unbalance
adjustment.
Unless otherwise specified by you, the units were delivered with the standard
setting (100 %).
IMPORTANT
By adjusting the unbalances, you can directly influence oscillation bandwidth,
centrifugal force and current consumption.
For all devices, the unbal-
ances may only be set mir-
ror-symmetrically!
WARNING
The tables below show the type of unbalance and the number of unbalances per vibrator at
the default setting of 100%.
Unbalance
Type Quantity
Type
50 Hz 60 Hz
NEA 504 XL 8
NEA 5020 XL 8
NEA 5050 XL 18
NEA 5060 XLs 4
NEA 50120 XLs 6
NEA 50200 XLs 10
NEA 50300 8
XLs
NEA 50550 10
XLs
NEA 50770 8
XLs
NEA 2530 6
XLs
NEA 2570 16
XLs
NEA 25210 XS 4
NEA 25420 XS 4
NEA 25540 XS 4
NEA 25700 XS 4
Unbalance
Type Quantity
Type
50 Hz 60 Hz
NEG 5020 XL 8
NEG 5050 XL 18
NEG 5060 XLs 4
NEG 50120 6
XLs
NEG 50200 10
XLs
NEG 50300 8
XLs
NEG 50550 10
XLs
NEG 50770 8
XLs
NEG 501140 XLs 12
NEG 501540 XLs 12
NEG 501800 XLs 14
NEG 502020 XLs 16
NEG 502270 XLs 18
NEG 503400 XLs 12
NEG 503820 XLs 14
NEG 506220 XS 4
NEG 508830 XS 4
Type
8
NEG 2530
8
NEG 2570
18
NEG 25210
4
NEG 25420
NEG 25540
6
NEG 25700
8
NEG 25930
6
NEG 251410 XS
6
NEG 251800 XS
6
NEG 252060 XS
6
NEG 252370 XS
10
NEG 253050 XS
4
NEG 253720 XS
4
NEG 254310 XS
4
NEG 254900 XS
4
NEG 256460 XS
NEG 258040 XS
NEG 258260 XS
NEG 2511210 XS
NEG 2513850 XS
8
NEG 1630
18
NEG 1690
4
NEG 16190
6
NEG 16310
8
NEG 16410
NEG 16500
6
NEG 16810
6
NEG 161130 XS
6
NEG 161420 XS
8
NEG 161610 XS
NEG 162110 XS
8
NEG 162550 XS
10
NEG 163030 XS
10
NEG 163820 XS
12
NEG 164700 XS
8
NEG 165190 XS
10
NEG 166270 XS
4
NEG 166670 XS
4
NEG 167890 XS
NEG 168500 XS
NEG 169510 XS
NEG 1612060 XS
NEG 1613890 XS
NEG 1617000 XS
Unbalance
Quantity
Type
50 Hz 60 Hz
XLs 6 6
XLs 16 10
XS 4 4
XS 4 4
XS 4 4
XS 4 4
XS 4 4
4 4
4 4
4 4
4 4
4 4
4 4
4 4
4 4
4 4
4 4
4 4
4 4
4 4
XLs 8 8
XS 4 4
XS 4 4
XS 4 4
XS 4 4
XS 4 4
XS 4 4
4 4
4 4
4 4
4 4
4 4
4 4
4 4
4 4
4 4
4 4
4 4
4 4
4 4
4 4
4 4
4 4
4 4
16
Unbalance
Type Quantity
Type
50 Hz 60 Hz
NEG 12100 XS 4
NEG 12180 XS 4
NEG 12230 XS 4
NEG 12460 XS 4
NEG 12640 XS 4
NEG 12900 XS 4
NEG 121430 XS 4
NEG 122150 XS 4
NEG 122640 XS 4
NEG 122920 XS 4
NEG 123530 XS 4
NEG 124440 XS 4
NEG 127640 XS 4
NEG 128520 XS 4
NEG 1211070 XS 4
NEG 1213160 XS 4
NEG 1217670 XS 4
Procedure:
• Switch off vibrator,
secure against unin-
tentional starting and
ensure that there is
no voltage.
• Loosen both covers
for the unbalances.
• Loosen the locking
nuts or locking
screws.
• Adjust the lamella
discs or cast-iron un-
balances as required.
• Retighten the locking
nuts or locking
screws.
• Fasten the covers for
the unbalances.
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4