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    1. Rail

    Short Angle Projection (SAP) Bonded Insulated Rail Joint

    June 30, 2016
    The SAP Joint design increases longitudinal joint strength while reducing epoxy shear stress, reduces noise and vibration, and provides a smooth wheel transition from one rail to the other rail.
    Koppers, Inc.
    Koppers SAP Joint NT 5775924d6621e
    • Reduces expoxy shear stress, noise and vibration
    • Staggered end post halves connected with a short angle cut rail head profile eliminate wheels traversing the conventional 90° end post gap
    • Eliminates joint shock loads and eventual rail end batter

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