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    Gravity casting and foundry casting Comparison
    Author:admin  Update:2009-8-28  Hits:5715  



    Gravity Die Casting

     Foundry Casting

    Area under the equal production quantity

    About 100

    About 500


    Temperature of pouring


    950 degree


    1050 degree

    loss of copper (exclusive of recycle part )




    proportion of sprue ( finished casting and proportion of pouring)


    4:1 to 5:1 and sprue  is small


    2:1 to 1:1, and sprue is large




    Quality of product

    Casting thickness is uniformity, high density, the surface of inside and outside  is smoothly, consistent  overall dimensions, finishing fast, high polishing & machining efficiency

    To have slag on casting products the surface is roughness of both inside and outside, different overall dimensions, low efficiency on machining & polishing, consumption of materials and time-consuming & material consuming



    Rate of good products

    92% ~ 98% high pass rate (refer to placing sand core), the yield is higher if there is no sand cores in casting products



    High reject rate





    Labor efficiency

    Only7 persons (90KW frequency furnace, two sets of sand core blower machine, 2sets of gravity casting machine, one set of mix sand machine,

    staff:: sand core machine 2persons, Gravity casting 3persons,Edge Finish 2persons) , can be die-casted 900-1200pcs per 8 hours





    Above 14 persons


    State of pollution

    Gravity Casting lower pouring temperature required & less pollution

    Coal & oil furnace has air pollution during melting process


    State of operation

     Easy operation with only two hours training don’t need to  have deep technology

    Skilled technical requirements

     High physical exaction

    Copyright @ 2009 ORIENO PRECISION HARDWARE CO.,LTD. All Rights Reserved.
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