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  • Users: robsb123
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  1. robsb123

    Equipment guarding

    We quote and build a lot of custom conveyors for bulk and package handling. We are not always responsible for the installation of these conveyors and most of the time we do not know the exact location of where the equipment will be installed. As a general rule we do not include guarding as a...
  2. robsb123

    STEEL SELECTION FOR FIELD REPAIR

    I need some assistance in choosing a grade of steel We are welding a solid steel forging (4"x6" cross section) to a 1" thick A36 plate. Can anyone recommend a grade of steel that would offer maximum strength/hardness without the need of post weld heat treatment. We will be taking this piece...
  3. robsb123

    Bolt Fatigue

    Does anyone have any specs on the fatigue strength of grade 5 and grade 8 hardware? I have an alternating tensile load, alternating from "zero" (just the tension from the nut) to a larger positive value.
  4. robsb123

    CATWALK STANDARDS

    What are good standards to use for loading (PSF) and deflection (inches/span) for maintenance only catwalks.
  5. robsb123

    4140 vs 4340

    My firm is planning on welding some pretty thick sections of alloy steel and I wanted to get some opinions on the process. We are planning to weld 5 1/2" thick by 8" wide forged ring with an ID of 7'-6" to the outside of a cylinder. The forged ring will be alloy steel (either 4140 or 4340)...

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