The latest trend on the world’s major
construction sites points in just one
direction, and it follows the Olympic
concept “Faster, Higher, Stronger“.
Modern rotating tower cranes must face these
challenges and master them with refined technology.
The new CTL 1600 luffing jib crane
by Terex was tailored specifically to these
requirements. Impressive 66 t of maximum
lifting capacity resulting from a load torque
of 1600 mt as well as a maximum jib length
of 75 m and an 89 m detached tower speak
for themselves. This makes the CTL 1600 the
largest tower crane ever build by Terex in Italy.
It is evident that great value was placed in the
optimal choice of critical crane components for
this giant. Safety and reliability in operation
are top priority of course; any problem could
quickly cause time- and cost-intensive operational
disruptions. This must be prevented by
all means with regard to the tightly scheduled
process flows. When selecting rope, Terex
did not make any compromises and chose
2 approved rope constructions by CASAR.
The crane specialists installed a EUROLIFT 34
mm in diameter and 600 m in length on the
hoisting unit. This rope construction is highly resistant to torsion due to 18 outer strands
and a tightened core rope laid in the opposite
direction. The torque of the individual strands
seem to be opposite in operation. Special
wire ropes by CASAR take this physical law
into account to the extent that the torques
of the internal and the external strands compensate
each other even in a high lift range.
Many users also value the good handling of
this flexible rope construction as well as the
excellent coiling on multiple-layer drums.
A PARAFIT with a diameter of 30 mm and a
length of 330 m is used for the luffing gear.
The double parallel quality of the rope and the
swaging process carried out after the closing
of the rope achieves extremely high breaking
resistance. In addition, the smooth surface offers
great benefits for coiling and, combined
with the strong compression in the rope, also
maximum protection against cross-section
deformation. The excellent product features
are complemented with the plastic-coated
rope core, which increases the rope’s stability,
absorbs shocks and also protects the rope’s
interior against moisture and penetrating
soiling. This hammered rope offers optimal
features specifically for retracting winches.
Ricardo Alba, construction manager for Terex
rotating tower cranes, was very pleased with
the running tests, and the first cranes will soon
be shipped to the world’s major building sites.