Crane and hoists are essential for the vertical transportation in a high-rise building. While hoists are generally used for manpower transportation, cranes are used to transport major materials such as steel, etc, and sometimes for shuttering.
Tower cranes or boom cranes mounted on demountable structures offer the best combination of height and lifting capacity for tall buildings. “They can be mounted on a movable or fixed platform and reach all around as per boom length and work in all weather conditions; only checks and balances are required,” says Nayan Raheja, Executive Director, Raheja Developers.
“Generally, high-quality cranes can cost between Rs 6-7 crore,” says Ani Ray, Managing Director, ACC (Arabian Construction Company). Lodha World One in Mumbai and Supernova in Delhi are using Luffing crane with highest capacity and flexible boom length.
Omkar 1973 has used Liebherr 180 HCL 8/16, 50 m boom length luffing cranes. Raman Sapru, President-EPC, Omkar Realtors & Developers, adds, “We used a windscreen around the building for its safety and comfort.”
Cranes work at high altitudes and need to be reliable and flexible as, sometimes, there is insufficient space in high-rise buildings. So, depending on the system and architecture, cranes are used.