s42sx

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The successful， field-proven
42m boom: now with the stabilizing system of the future.
Coordination of load moment，
structural weight and stabilizing
width is a vital factor in large-
boom truck-mounted concrete
pumps， determining onsite
space requirements. With con-
ventional designs， the neces-
sary effective spans of 8 m or
more are dependent on folding
outriggers. Unfolding these
takes up considerable space，
a commodity in short supply on
todays confined sites.
With this in mind， SCHWING
has now upgraded its success-
ful， field-proven standard boom，
the KVM 42， with the modern
SX stabilizing system.
Arc-shaped outriggers are locat-
ed in longitudinal direction on
the vehicle frame， allowing
them to be longer. As they tele-
scope on an orbital path， they
are extended laterally and for-
ward simultaneously in the
same way as the linear X-stabi-
lizer. The primary advantage
is that the stabilizers are posi-
tioned parallel to each other
and not one above the other as
with the linear X-stabilizer. This
is the only means of achieving
effective spans of 8 m or more.
This layout also makes way for
a lower structural height， leav-
ing room for the installation of
pump assemblies with an extra
long stroke. That accounts for
the other name given to this
stabilizing system:
the Super-X stabilizer， in brief
the SX”.
The opportunity to install pump
assemblies with a high maxi-
mum output of up to 163 m3
/h
offers the owner special bene-
fits with a low stroke rate dur-
ing the concreting operation，
meaning less wear， low fuel re-
quirements， and a steady end
hose during pumping.
The heart of the concrete pump
is the Rock valve， a model of
pumping qualities， wear perfor-
mance and operational de-
pendability. The Rock valve
and the integrated SCHWING
automatic seal are patented
worldwide.
The SX stabilizer has also al-
lowed the entire superstructure
to be completely redesigned.
It is now characterized by its
streamlining， its generous
stowage space for the pump
accessories， and smooth，
large-area panel-work. In prac-
tice this means:
working safety and efficient，
fast cleaning of the entire su-
perstructure. And even the
unproblematic， operator-fr