Firstly, holes are pre-drilled into the material which is to be burst, creating openings to insert the hydraulic burster heads into. The number and size of these holes will depend on a number of factors, including the size and type of structure, the type of material, and the thickness of the material.
After this, the heads of the bursters are inserted into the holes. They are then expanded hydraulically, increasing the pressure within the material and causing splits and cracks to appear. Once the material has been ‘burst’ into manageable pieces, it can easily be cleared as required.
Hydraulic bursting machines can be fixed with heads of various diameters – typically producing 100 to 250 tons of pressure. The larger the bursting head is, the higher its bursting capacity. For example, a 100mm head has a bursting capacity of approx. 108 tons, while a 200mm head has a bursting capacity of approx. 250 tons. With Robore’s advanced fleet of machinery, we can achieve a bursting capacity of up to 2000 tons using multiple hydraulic burster heads.