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ＤＭ系列液压马达是等接触应力低速大扭矩液压马达，它是用当今最新理论──无脉动等接触应力理论设计的新产品。其性能特点是：工作压力高，效率高，使用寿命长，噪声低。结构特点是端面配流，静压支承。本系列产品广泛适用于工程机械，诸如混凝土搅拌输送车滚筒液压驱动系统
The DM series hydraulic motors are all-contact-stress, low-speed, high-torque hydraulic motors, which are new products designed with the latest theory today-pulseless contact stress theory. Its performance characteristics are: high working pressure, high efficiency, long service life, low noise. Structural features are face with flow, hydrostatic support. This series of products are widely used in construction machinery, such as concrete mixer truck drum hydraulic drive system