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Thread: Focus lens

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  1. #1
    Join Date
    Jul 2012
    Posts
    28

    Focus lens

    Dear members ,

    My goal is to cut maxim 1.2 stell but 0.8 should be enough for the moment
    I own a cnc laser machine at 150 watts reci .

    For the moment the machine is equiped with a focus lens 20mm diam 63.5 mm cut lengh and 25 mm diam MO mirrors.

    After doing some researches I found out some laser machine same power as mine cutting metal but with different cutting head and lens .

    From here I need your help . As I did my researches I found out that for cutting metal is used a 25.4 mm diam 63.5 focal lengh

    Please give me some sugestions about what to use .

    I do know that I need Oxigen .

    REgards,

    Costin

  2. #2
    Join Date
    Jan 2011
    Posts
    129
    Quote Originally Posted by Miron.Costin View Post
    Dear members ,

    My goal is to cut maxim 1.2 stell but 0.8 should be enough for the moment
    I own a cnc laser machine at 150 watts reci .

    For the moment the machine is equiped with a focus lens 20mm diam 63.5 mm cut lengh and 25 mm diam MO mirrors.

    After doing some researches I found out some laser machine same power as mine cutting metal but with different cutting head and lens .


    From here I need your help . As I did my researches I found out that for cutting metal is used a 25.4 mm diam 63.5 focal lengh

    Please give me some sugestions about what to use .

    I do know that I need Oxigen .

    REgards,

    Costin
    Did you ever find the proper lems?

  3. #3
    Join Date
    Oct 2008
    Posts
    16

    Re: Focus lens

    It's not the laser tube power that defines your cutting capabilities. It is the focal point energy density...

    Usually.. smaller focal point optics are more energy dense.. so I would try to find the smallest focal point lens I could find and go from there...

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