NEWTEC is also known for the production of equipment used in the extraction of blocks in marble, granite and other natural stone quarries. In particular, these hydraulics bags made with the best steel plates for high strength and ductility.
These are filled with water through a pump and therefore generate a thrust that push the block from the mountain side, facilitating its rolling.
NEWTEC also has patented multiple hydraulics bags, such as double and triple, making double and triple expansion available.