Instructions

16
8 Adjustment of unbalances
IMPORTANT
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 %).
By adjusting the unbalances, you can directly influence oscillation bandwidth,
centrifugal force and current consumption.
WARNING
For all devices, the unbal-
ances may only be set mir-
ror-symmetrically!

The tables below show the type of unbalance and the number of unbalances per vibrator at
the default setting of 100%.
Type
Unbalance
Type
Quantity
50 Hz
60 Hz
NEA 504
XL
8
8
NEA 5020
XL
8
8
NEA 5050
XL
18
18
NEA 5060
XLs
4
4
NEA 50120
XLs
6
6
NEA 50200
XLs
10
8
NEA 50300
XLs
8
6
NEA 50550
XLs
10
6
NEA 50770
XLs
8
6
NEA 2530
XLs
6
6
NEA 2570
XLs
16
10
NEA 25210
XS
4
4
NEA 25420
XS
4
4
NEA 25540
XS
4
4
NEA 25700
XS
4
4
Type
Unbalance
Type
Quantity
50 Hz
60 Hz
NEG 5020
XL
8
8
NEG 5050
XL
18
18
NEG 5060
XLs
4
4
NEG 50120
XLs
6
6
NEG 50200
XLs
10
8
NEG 50300
XLs
8
6
NEG 50550
XLs
10
6
NEG 50770
XLs
8
6
NEG 501140
XLs
12
8
NEG 501540
XLs
12
8
NEG 501800
XLs
14
10
NEG 502020
XLs
16
10
NEG 502270
XLs
18
12
NEG 503400
XLs
12
8
NEG 503820
XLs
14
10
NEG 506220
XS
4
4
NEG 508830
XS
4
4
Type
Unbalance
Type
Quantity
50 Hz
60 Hz
NEG 2530
XLs
6
6
NEG 2570
XLs
16
10
NEG 25210
XS
4
4
NEG 25420
XS
4
4
NEG 25540
XS
4
4
NEG 25700
XS
4
4
NEG 25930
XS
4
4
NEG 251410
XS
4
4
NEG 251800
XS
4
4
NEG 252060
XS
4
4
NEG 252370
XS
4
4
NEG 253050
XS
4
4
NEG 253720
XS
4
4
NEG 254310
XS
4
4
NEG 254900
XS
4
4
NEG 256460
XS
4
4
NEG 258040
XS
4
4
NEG 258260
XS
4
4
NEG 2511210
XS
4
4
NEG 2513850
XS
4
4
NEG 1630
XLs
8
8
NEG 1690
XS
4
4
NEG 16190
XS
4
4
NEG 16310
XS
4
4
NEG 16410
XS
4
4
NEG 16500
XS
4
4
NEG 16810
XS
4
4
NEG 161130
XS
4
4
NEG 161420
XS
4
4
NEG 161610
XS
4
4
NEG 162110
XS
4
4
NEG 162550
XS
4
4
NEG 163030
XS
4
4
NEG 163820
XS
4
4
NEG 164700
XS
4
4
NEG 165190
XS
4
4
NEG 166270
XS
4
4
NEG 166670
XS
4
4
NEG 167890
XS
4
4
NEG 168500
XS
4
4
NEG 169510
XS
4
4
NEG 1612060
XS
4
4
NEG 1613890
XS
4
4
NEG 1617000
XS
4
4
Type
Unbalance
Type
Quantity
50 Hz
60 Hz
NEG 12100
XS
4
4
NEG 12180
XS
4
4
NEG 12230
XS
4
4
NEG 12460
XS
4
4
NEG 12640
XS
4
4
NEG 12900
XS
4
4
NEG 121430
XS
4
4
NEG 122150
XS
4
4
NEG 122640
XS
4
4
NEG 122920
XS
4
4
NEG 123530
XS
4
4
NEG 124440
XS
4
4
NEG 127640
XS
4
4
NEG 128520
XS
4
4
NEG 1211070
XS
4
4
NEG 1213160
XS
4
4
NEG 1217670
XS
4
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.