In 1986 we have got the idea of designing and manufacturing machines for primary demolition and therefore we began the study of the project of our first hydraulic breaker for mini-excavators. In 1988 we set up "Demoter Srl" company that started marketing the "DM85" Demoter hydraulic breaker, -first example of a long series of hammer ranges.     In 1994 we launched the first range of hydraulic breakers working through a Nitrogen gas energy recuperation system. The great satisfaction of our customers and the hig reliability of our machines convinced us that the technology we had developed up to that time, was the right one and well established during the years.     2001: the year of the great innovation! The new "S-series" of breakers, is the result of many years of experience as manufacturers of hydraulic breakers with energy recuperation system. The special monobloc body design and the very low noise emissions levels, make this breaker definitely innovatory.     2009 year model is equipped with a new "CPS" valve that allows the hammer to work with much higher counter pressure. With new case, the level of noisiness has been reduced. The visibility thanks to the new rounded shape still turns out improved. Renewal of our range, today sees the introduction of three new ones demolishers: S400, S550 and S800.     The Hardox case has been modified in order to improve protection of the internal mechanisms, introduces moreover reinforced weldings. New devices anti powder have been added to the hydraulic rotation. New heat treatments in the usury zones and better protection of the inner pipe lines. A new acceleration valve, allowed to lower open-closing cycle time of the arm come down to the incredible time of 4 seconds!