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...Various types of cranes a crane is tower or derrick that equipped with cables and pulleys are used to lift lower material they commonly in the construction industry manufacturing heavy equipment for normally temporary structures either fixed ground mounted on purpose built vehicle can be controlled from an operator cab travels along by push button pendant control station radio type controls ultimately responsible safety crews mobile most basic consists steel truss telescopic boom platform which could rail wheeled even cat truck hinged at bottom raised lowered hydraulic cylinders this offers number tubes fitted one inside other mechanism extends retracts increase decrease length modern form balance when will often give best combination height lifting capacity also constructing tall buildings rubber tire provide great mobility outriggers extend vertically horizontally level stabilize during hoisting rough terrain undercarriage four tires designed operations off road these single engine m...