OEM Durable And Reliable Travelling Steel launching Gantry Crane
For Railway Construction
Truss Launching crane/beam launcher is an important machinery for
building high rise constructions, bridges etc. These beam launchers
can handle cat-in place concrete, as well as prefabricated
elements, hence they are highly adaptable for varied spans and
types of superstructure. With sophisticated design &
fabrication, these launching girders are itself a steel structure,
which moves forward on the high rise constructions or the bridge
piers span by span. With varied launching capacities and heights,
our range of launching girders are made from quality material,
ensuring durable and reliable performance.
Launching cranes are widely used in the following applications:
1. Bridge construction
2. Highway construction
3. Railway construction
4. Road construction.
Design features include:
1. Reliable performance
a) Apply the latest separate pinned structure of triangular space
truss to main girder, so as to improve the stiffness and strength
of whole crane.
b) Main girder is made of Q345 high strength steel, and melt into
the latest design to ensure the main girder can work under high
strength mode safely.
c) ZHONGJIAN brand launching crane is pioneering in continuous one
time operation during bridge launching progress in China. It is of
the most complete function launching crane for single machine
d) Compared with similar products from other supplier, ZHONGJIAN
brand launching crane have its unique design concept to the most
difficult hole-span during bridge erection, in the way of laying
side beam. So, it is safer to operate under high difficult and risk
e) Powerful front, middle beam and three transom crane connect
together to ensure transverse stability during bridge erection
f)There is separate stroke switch control to each traveling
mechanism, so as to decrease mutual collision between each
g) Overload resistance system: there is high performance weight
limiter on two sets of trolleys, so if the lifting girder is
overloading, the weight limiter will stop it at once.
h)There are normally three legs from other supplier. But we have
four legs, including one front leg, one middle leg, one rear leg
and one temporary leg.
i)Apply inner shrink leg to one time erect side beam in position
and have more safety.
2. More powerful corrosion resistance
a) Strictly execute standard painting process to ensure blasting
and painting quality.
b) Apply H steel enclosed section for main girder chord. Web chord
is made by customized square tube to realize enclosed welding,
which can avoid inner rust.
3. Higher working efficiency
a) There is traveling rail together with main girder, trolley and
longitudinal crane. So, it is no need to lay traveling rail more.
In this way, a lot of auxiliary materials are saved and production
time is also saved.
b) ZHONGJIAN launching crane has higher working efficiency, with
6~8 pieces girder erection every day, based on enough concrete
plate supplying, skilled operator and good condition at site.
4. More flexibility
a) It is symmetrically designed. Two way girder erection can be
realized without split and slewing at original place.
b) Use one meter of hydraulic jack for front leg and rear leg. This
design improves working efficiency, safety and flexibility largely.
c) Erect skew bridge by inclined way. Apply rotary face flange to
connect each mechanism and structure, to erect 0~45°skew bridge.
Side beam can be positioned one time for over 320m curve radius
5. Easier assembly and disassembly
a) Each structure is connected by pins and bolts to facilitate
b) Normally one set of launching crane can be assembled within
6. Plentiful experiences in this field
a)Our chief engineer Dr. Zhao is professional and very famous in
China to design launching cranes.
b)ZHONGJIAN brand launching crane is one of the highest market
shares manufacturers in China, especially in Yangtze River Economic
Delta, you can see our products everywhere.
c)There is zero accident for ZHONGJIAN launching crane.
d)ZHONGJIAN brand launching crane have been used at various key
projects, such as Hyning Railway, Hangzhou-bay sea span bridge,
Minpu Bridge, Wenzhou Super large bridge, Jiubao bridge projects
e) There are 17 years’ experiences in this field for ZHONGJIAN.
Excellent employee personality, skilled production line and
advanced production process are the most important guarantee to our
General Drawing or Sketch or Draft Drawing
Assemble Procedure Drawing
Through-Hole Procedure Drawing