DYB-20有轨锻造操作机是我国自行设计和制造的全液压传动的操作机,目前尚是国内自制的最大吨位级操作机。适用于配2500吨～3150吨锻造水压机,它的参数符合原一机部颁布的“有轨锻造操作机系列和基本参数”(JB1548-75)。该机由原一机部重型局组织 DYB-20 rail forging manipulator is our own design and manufacture of fully hydraulic transmission manipulator, is still the largest self-made tonnage operating machine. It is suitable for forging hydraulic press with 2500 tons to 3150 tons. Its parameters are in accordance with the “Rail forging manipulator series and basic parameters” (JB1548-75) promulgated by the former machine department. This machine is organized by the original machine department heavy bureau