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FEBRUARY 2025 Ӏ NEWS


TEREX LAUNCHES NEW LUFFING JIB TOWER CRANE


Terex Tower Cranes has introduced the CTL 702-32 – a new luffing jib tower crane which the company says has been designed with an emphasis on control, safety, and efficiency. The tower crane has a 70-metre jib length with a maximum lifting capacity of 32 tonnes (up to 28 metre jib). With a 70-metre jib it has a lifting capacity of up to six tonnes.


The crane also has what Terex describes as ‘highly competitive free- standing height capabilities’. The CTL 702-32 has a powerful luffing motor, Terex says, so that every movement of the crane is precise and swift to improve safety and productivity. This control ethos extends to the


erection and dismantling process. This is now quicker than ever before, Terex claims, thanks to streamlined procedures


such as standardised pins and bolts, and the use of smart assisted assembly technology.


The design optimises the use of connectors. This, says Terex, makes maintenance simpler and more efficient by reducing the number of cables and connectors that need to be managed. Additionally, the crane’s main assembly is completed on the ground, further improving safety and ease of setup. The CTL 702-32 has a new T-Line


system which enables crane operators to place loads during jib luffing, ensuring a consistent load height is maintained. T-Torque inverter technology provides


torque control for precise, and operator adjustable, crane slewing. Terex says these tools allow operators to accurately control and fine-tune the crane's movements making it suitable for a


wide range of lifting tasks. “Our goal is to deliver not only cutting- edge technology but also a real solution to the challenges faced by construction teams on the ground,” commented Lee Maynard, global sales director, Terex Tower Cranes.


INTELLIGENT ASSISTANCE SYSTEMS FOR LIEBHERR K AND L SERIES CRANES


Liebherr has launched a raft of intelligent assistance systems for its current Liebherr K and L series of bottom-slewing cranes based around its Control 5 control system and Tower Crane Operating System 2. The control systems' processing power enables all assistance algorithms to be processed in real time. A battery-powered Inertial Measurement Unit measures hook


inclination and angular velocity, while a sensor system on the tower detects the inclination of the tower. Sway Control is included as standard with all cranes. The other four systems are all optional. They are: Sway Control Plus, which actively


corrects hook block sway in both slewing and trolley directions. Guided Hook assistance, which allows an operator on the ground to move the load hook by hand and thereby guide it to the load themselves. The hook can be moved in slewing and trolley directions. Constant communication between the crane operator and ground operative is therefore no longer necessary. Vertical Line Finder, which supports the crane operator with the lifting of loads by preventing diagonal pull, and therefore sway, when lifting. The crane automatically


10 CRANES TODAY


controls the slewing gear and trolley to ensure that the load hook is always optimally positioned above the load’s centre of gravity. As a result, the load is always lifted vertically, without any sway. And, finally, the Positioning Pilot assistance system, which makes it possible to move to saved points semi- automatically and to follow predefined routes. Up to three hook positions can be repeatedly and accurately accessed as required and two individually mapped routes can be navigated. The routes can be travelled forwards and backwards, and stopping in between is also an option. This, says Liebherr, makes Positioning Pilot suitable for repetitive lifting tasks like concreting work and truck unloading processes that require several lifts. These semi-automated movements are carried out without sway.


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