SECTOR REPORT Ӏ HIGH-RISE CONSTRUCTION
We start with Manitowoc’s Potain brand. In April 2025 Potain launched, from its factory in Zhangjiagang, China, the high- capacity MCR815. Its maximum capacity of 64t is double that of the plant’s current largest luffing jib crane, the 32t capacity MCR 625. The reasoning behind the development came from Manitowoc’s Voice of the Customer process which indicated growing demand for large luffing jib cranes on high-rise buildings and infrastructure projects.
The jib is 70m and can be luffed to an out-of-service radius of just 16m, making it ideal for congested jobsites. The winch is a new design, and powerful, giving line speeds of up to 185 m/min with a 2.3t load.
When the MRC 815 is fitted with a 30m jib and rigged in three- fall reeving, that 64t maximum capacity can be lifted at between 4.5m and 18 m working radius. With 60m of jib it can lift that maximum at between 7m and 19.5m working radius; in this configuration it can still lift 7.5t at the jib end. When all nine jib sections are fitted, to create a 70m reach, the crane will lift tip loads of up to 7t with single-fall reeving. For heavy-duty lifting, such as handling large precast elements, the crane will raise 34t at the end of a 30m jib in two-fall reeving. These strong lifting duties necessitated a new and precise (and rapid) hoist winch. The 280 LVFC 213 can accommodate up to 831m of rope and has a 212 kW motor, producing line speeds from 62m/min with a 6.9t load in three-fall reeving to 185m/min with a 2.3t payload in single fall. There is a power control option that links to the hoist and other mechanisms and enables the crane to operate with lower power for greater efficiency. This option is particularly well-suited to the early
stages of a project when less heavy lifting is required. The 110 kW- rated 150 VVFC 90 luffing hoist can raise the jib from its minimum to maximum angle in just two minutes and 20 seconds.
CONTROL IS SPEED In January 2025 Terex also introduced a new luffing jib tower crane. The design emphasis of the CTL 702-32 is on control, safety, and efficiency. At its core is the philosophy that control is speed. Every movement of the crane is precise and swift. “The more precise the control,
the safer and smoother the operation, minimising downtime and maximising efficiency,” says Angelo Cosmo, product manager for Terex Tower Cranes. “We embedded this philosophy in the design and functionality of the crane to provide a more seamless experience for operators and crews alike.”
Terex’s CTL 702-32 luffer
The CTL 702-32 has a 70m jib length; the maximum lifting capacity of 32t is available up to 28m of jib. At the full 70m jib it offers a lifting capacity up to six tonnes. Its free-standing height, says Terex, is highly competitive to give versatility for high-rise and large-scale projects. The luffing motor is electric
and powerful so that the CTL 702-32 can deliver speed as well as reliability. The crane features a slack
rope system designed to provide a smooth, uninterrupted lifting process by preventing slack rope conditions that could compromise crane stability and load security. We have mentioned precision
and control. The CTL 702-32 aims to deliver this through its brand-new T-Line system: during jib luffing it ensures a consistent load height is maintained. T-Torque inverter technology provides torque control for precise and
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