The Bonfiglioli heavy duty parallel and bevel helical gearboxes HDP and HDO are now more competitive thanks to the incoming new 125 size. HDP 125 and HDO 125 are available in 2, 3 and 4 stages, with a range of reduction ratios from 1:9 to 1:500. They feature an output torque above 49kNm. It improves both series in the torque area between 40KNm (HDP 120) and 70kNm (HDP 130), which is fundamental for the applications of Bonfiglioli customers like feed screws, lifting systems, pumps, conveyors, mixers and mixer-stirrers, etc. The 125 size also features the well-known robustness and reliability of the HDP and HDO series. It shows a new external design that will be applied to the whole series in the future.