Dong Yang repower questions
Close
Login to Your Account
Likes Likes:  0
Results 1 to 7 of 7
  1. #1
    Join Date
    Nov 2020
    Country
    UNITED STATES
    State/Province
    Georgia
    Posts
    7
    Post Thanks / Like
    Likes (Given)
    0
    Likes (Received)
    0

    Default Dong Yang repower questions

    In my never ending search for a lathe for my home shop my employer as agreed to sell me one of the company's old lathes for a very fair price, this includes letting me use one of the forklifts to upload and maneuver it around at my house. The lathe is a Okuma copy made by Dong Yang I have operated it at work and know it works well. My question is getting power to this machine in my home shop, it has a 10hp motor which is somewhat difficult. Could this machine possibly be repowered with a 5hp motor that I have laying around for free or would it take too much from it? I'll never use the 10hp to its potential but I'm not sure how badly it'll neuter it going to 5hp. The other option is I have a 25hp motor I could make a RPC out of but I only have a 100 amp service in my shop. Any suggestions to power this machine are welcome I really want to buy it knowing the condition and all but am struggling to figure out how to power it. Thanks, Aaron

  2. #2
    Join Date
    Jul 2006
    Location
    Hillsboro, New Hampshire
    Posts
    12,751
    Post Thanks / Like
    Likes (Given)
    2901
    Likes (Received)
    8826

    Default

    It's no big deal, put the 5hp on it. It just means you'll have to take lighter cuts at lower speeds.

    If you find that's a hassle, put the 10hp back in and figure out the costs to make/buy a RPC or ($$$) get three phase wired in.

  3. #3
    Join Date
    Nov 2020
    Country
    UNITED STATES
    State/Province
    Georgia
    Posts
    7
    Post Thanks / Like
    Likes (Given)
    0
    Likes (Received)
    0

    Default

    Thats a good point I was just worried about the parasitic drag being a gearhead lathe.

  4. #4
    Join Date
    Jun 2008
    Location
    Roanoke, VA
    Posts
    759
    Post Thanks / Like
    Likes (Given)
    198
    Likes (Received)
    302

    Default

    5hp single phase or 3 phase? I’d not put a single phase motor on it.

  5. #5
    Join Date
    Mar 2009
    Location
    Eureka, CA
    Posts
    4,331
    Post Thanks / Like
    Likes (Given)
    1006
    Likes (Received)
    1722

    Default

    Is there a reason you have skipped over using a 7 1/2hp motor? It's more than 5 but less than 10 and it's a common size 3 phase motor.

    Stuart

  6. #6
    Join Date
    Nov 2020
    Country
    UNITED STATES
    State/Province
    Georgia
    Posts
    7
    Post Thanks / Like
    Likes (Given)
    0
    Likes (Received)
    0

    Default

    Quote Originally Posted by Nmbmxer View Post
    5hp single phase or 3 phase? I’d not put a single phase motor on it.
    No its a 3ph motor

    Quote Originally Posted by atomarc View Post
    Is there a reason you have skipped over using a 7 1/2hp motor? It's more than 5 but less than 10 and it's a common size 3 phase motor.

    Stuart
    Yes because I have a free 5hp motor just taking up space.

  7. #7
    Join Date
    Mar 2009
    Location
    Eureka, CA
    Posts
    4,331
    Post Thanks / Like
    Likes (Given)
    1006
    Likes (Received)
    1722

    Default

    I have a 17" X 40" lathe that came with a 7 1/2 hp motor. I needed to power it via a frequency drive and the Hitachi unit rated for 7 1/2 hp was more than my piggy bank could handle, so I re-powered it with a 5 hp motor and never looked back. Plenty of oink for any job.

    Stuart


Tags for this Thread

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •