World biggest demolition from MQP Global at work: Cat 5110B HRD88. Demolishing a powerplant. It works with 10 tons scrap shear. http://www.youtube.com/watch?v=wItO-9UwIcs
Picture from the telescopic boom, consisting of 2 telescopic sections. Now a 10 tons Dehaco/Zato DSS 950R scrap shear is used.