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  • Proportional Solenoids: Technical Overview
    . Proportional Solenoids have two ranges of stroke; the control stroke where the plunger position is dependent on the applied current, and the approach stroke where force is dependent on stroke position. Most applications use only the control stroke. Proportional solenoids are used in Hydraulic control
  • Good news for bad vibes
    Washers that add tension rather than friction keep bolted joints tight. Nord-Lock washers keep bolted joints tight in hydraulic hammers from Atlas-Copley. Nord-Lock washers are available in yellow zinc chromate carbon steel (RC 48) in sizes from #5 to 5 in. and M3 to M130, or in stainless steel (RC
  • Sneaking up on a solution
    a poppet valve, a hydraulic device that prevents fluid backflow. A particular design failed catastrophically after some period. It cracked and eventually broke a thin section when it slammed shut, " he says. To prepare for solving this problem, consider a long uniform bar traveling at a constant

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