Fayat Group BOMAG BW 213 DH-4 BVC, Service Manual, Page: 40 / 51

2.1
BOMAG single drum rollers
BOMAG 40 008 916 77
The vibration systems.
Vibration is the heart of the roller. There are two systems to choose from: Circular exciter and VARIO-
CONTROL.
Well known and popular: the circular exciter.
Single drum rollers with circular exciters offer two amplitudes and are particularly simple to operate.
Advantages at a glance:
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Powerful circular exciter with high compaction power
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Simple operation with two amplitudes
Infinitely variable, intelligent and flexible: BOMAG VARIOCONTROL (BVC)
Fig. 7
BOMAG VARIOCONTROL has revolutionized earth compaction.
VARIOCONTROL means:
l
The drum vibrates purely linear instead of on a circular path
l
The amplitude is infinitely adjustable
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The amplitude is controlled automatically
VARIOCONTROL extends the range of possible applications tremendously. Smooth and powerful – just as re-
quired. If there are e.g. sensitive building nearby, the amplitude is reduced to such an extent, that no harmful
vibrations will be generated. However, if sheer compaction power is required, the VARIOCONTROL will achieve
undreamt-of power. Thanks to the linearly directed oscillations amplitudes of up to 2.85 mm are possible, which
would not be achieved with conventional systems.
BOMAG VARIOCONTROL can even offer more, it is intelligent and automatically controls its amplitude infinitely.
Benefit: Maximum quality and uniform compaction with a minimum number of passes. VARIOCONTROL con-
siderably reduces the costs per m
3
.
Advantages at a glance:
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VARIOCONTROL with linear, directed vibration
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Infinite amplitude adjustment
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Gentle compaction in sensitive environments