Basics of Tower Crane Details

1. TOWER CRANES

15. The Base

16. Mast / Fixed Tower

17. Swing Ring

18. Boom Counter Weight

19. Erection of Boom

20. The Operator’s Cabin

21. Load Carried by the Boom Tower Crane at the Site: Maximum unsupported height - 141 feet (43 meters) Maximum reach - 164 feet (50 meters) Maximum lifting power – 6.61 tons (6 metric tons), Counterweights – 17.6 tons (16 metric tons) Sr. No. Distance from the Mast ( in meters) Load Carrying Capacity ( in Metric Tonnes) 1 10m 6 2 20m 4 3 30m 3 4 40m 2

25. STATISTICAL ANALYSIS Sr. No. PARTICULARS WITH CRANE WITH LIFTS 1 CONCRETING @ 7000 Sq.ft 10 Hr 25 Hr 2 LABOURS REQUIRED FOR 15-25 45-60 3 QUANTITY OF CONCRETE 6 Bag 1 Bag 4 R/F SHIFTING WITHIN SITE 1-1.5 Hr 8-10 Hr 5 ERECTION - DISMANTLING COST 1,00,000 25,000 6 ½ YEARLY MAINTAINANCE COST 30,000 5,000 7 WASTAGE OF CONCRETE 0.25 % 3%

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