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KO LEE S612 surface grinder help

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  • KO LEE S612 surface grinder help

    Hello
    I am going to examine a KO LEE S612 surface grinder for purchase this weekend

    I have a few questions, if someone may would consider helping me

    1) What size arbor for the wheel is on this machine?
    2) What is the width of the wheel?
    3) What is the appropriate wheel 80 grit, or 120 grit?
    4) What is the material that the wheel is made of, Friable Aluminum Oxide or not?
    5) What is the horsepower and electrical needs of the motor?
    They say that it is set up for 110V now, but does anyone have the electrical specs or wiring diagram for this if I want to convert it to 220V?

    Any other information including manuals, parts lists, electrical schematics, etc...can be sent to me if you let me know how to get in touch with you or I can tell you my email

    Thank you so much

    Forrest
    [email protected]

    Remove the nospam
    Forrest Halford, MS
    Black Iron Physics, LLC
    Aztec NM
    Gunsmithing

  • #2
    The ones of those I have used in toolrooms were set up with Sopko wheel adapters and used a standard 1-1/4 hole in the wheel.
    The wheels are usually 7" diameter when new, can be a 1/16 cutoff, 1/4, 3/8, 1/2, up to 3/4 wide. The most commonly used is a 1/2".
    Usually you will want a 60 or 80 grit with J or K hardness, but it depends on what you're grinding. Just as you can't use one end mill for everything, you can't use one wheel for everything.
    A 1/2 horse or more will do on the motor, usually the wiring diagram is on the motor if it can be dual voltage.
    A 6 x 12 surface grinder is just the right size for a home shop. KO Lee is a very good brand if it's not worn out.

    Comment


    • #3
      Check any data plates on the machine to determine the original specs. for the motor. Most surface grinders are three phase and run a precision balanced motor. KO Lee is no exception. If someone swapped the original three phase motor for a generic single phase, I'd pass on the machine.

      Comment


      • #4
        how many wheel addapters come with it? will be expensive.

        Comment


        • #5
          Wheel adapters can be bought used on eBay for $15 to $20 each.

          Comment


          • #6
            Originally posted by dian View Post
            how many wheel addapters come with it? will be expensive.
            Originally posted by Toolguy View Post
            Wheel adapters can be bought used on eBay for $15 to $20 each.

            I'd go with Dian.

            I'd never consider buying a used grinder adaptor - the more so if it has "balance weights". All too often these adaptors have a left-hand thread (especially surface grinders).

            My surface grinder has balanced adaptors but my T&C grinders do not.

            But sort it out with a user hand-book first.

            Comment


            • #7
              The KO Lee motor can be 110 115 volt mine is from the factory It is 1 hp motor on the spindle driven by a bunch of rubber o rings.The rest is what Toolguy said.
              Every Mans Work Is A Portrait of Him Self
              http://sites.google.com/site/machinistsite/TWO-BUDDIES
              http://s178.photobucket.com/user/lan...?sort=3&page=1

              Comment


              • #8
                Lane, you mean sewing machine belts !

                JL...............

                Comment


                • #9
                  I bought the little KO LEE S612

                  It only has two of the little belts
                  the one most distal from the centerline of machine is missing

                  Does anyone have a part number from McMaster or other for those belts?

                  It has the spools and I removed them and have them
                  There are also little flat shims or bits of sheet metal under there, and I was wondering what they were?

                  Can anyone that has one of these grinders, remove the table and take a picture of the arrangement of these spools and the little flats?

                  Thank you
                  Forrest

                  Originally posted by JoeLee View Post
                  Lane, you mean sewing machine belts !

                  JL...............
                  Forrest Halford, MS
                  Black Iron Physics, LLC
                  Aztec NM
                  Gunsmithing

                  Comment


                  • #10
                    Originally posted by JoeLee View Post
                    Lane, you mean sewing machine belts !

                    JL...............
                    No they are just plain old O rings. A set from KOLee was very expensive.I just buy o rings . Want to think they are 3/16 dia and about 4 inches dia. takes about 10 of them and they are a bitch to stretch on all the little groves.
                    Every Mans Work Is A Portrait of Him Self
                    http://sites.google.com/site/machinistsite/TWO-BUDDIES
                    http://s178.photobucket.com/user/lan...?sort=3&page=1

                    Comment


                    • #11
                      Originally posted by johngalt1962 View Post
                      It only has two of the little belts
                      the one most distal from the centerline of machine is missing

                      Does anyone have a part number from McMaster or other for those belts?

                      It has the spools and I removed them and have them
                      There are also little flat shims or bits of sheet metal under there, and I was wondering what they were?

                      Can anyone that has one of these grinders, remove the table and take a picture of the arrangement of these spools and the little flats?

                      Thank you
                      Forrest
                      Those are suppose to be little flat springs that keep the rollers pushed up to the table . They may be broken.
                      Every Mans Work Is A Portrait of Him Self
                      http://sites.google.com/site/machinistsite/TWO-BUDDIES
                      http://s178.photobucket.com/user/lan...?sort=3&page=1

                      Comment

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