Bandsaw speeds

  1. RedOrZed Member

    Messages:
    301
    Milton Keyneses
    In the garage there is a fairly large, home-made bandsaw, of the "wood cutting" stand up type. I bought it years back from the homeworkshop.org.uk list.

    It's got a reasonable sized throat, it'll never be as good as a horizontal BS, but it's what's there for now. There is an old Rapidor powerhacksaw (somewhere).

    My question is: how slow do I need it to run to cut metal? There's speed change pulleys underneath, so I could change them for different ones.

    Also: what's the best blade to get? Obviously wood cutting ones won't do.

    Cheers

    Zed
     
  2. graffian

    graffian Seer unto the end of his beard

    Messages:
    2,449
    surrey
    I have a wood cutting bandsaw[woodhead junior] the blade speed is around 2,800 feet per minute.
    It cuts through aluminium with the wood blades that came with it at that speed, but it's much to fast.

    The recomended speed for metals seems to be between 60 and 400ft/min.
     
    RedOrZed likes this.
  3. Bsmith Member

    Messages:
    1,983
    Location:
    Leyland UK
    I asked the same question about a decent metal cutting blade on here and a forum member told me to get one from tuff saws.
    I'm really happy with it.
    https://www.tuffsaws.co.uk/
     
    Tangledfeet and RedOrZed like this.
  4. RedOrZed Member

    Messages:
    301
    Milton Keyneses
    Cheers :)

    Now my brain has exploded at the choices LOL
     
  5. anto44

    anto44 Member

    Messages:
    829
    Location:
    ireland
    I looked up this before and the figures I found were
    Aluminum 150-1000 m/min
    Steel 50-120 m/min
    Stainless 20-75 m/min

    Those figures are from tuffsaws website
     
    RedOrZed likes this.
  6. RedOrZed Member

    Messages:
    301
    Milton Keyneses
    thank you! Will have another look at their site!
     
  7. Wallace

    Wallace Member

    Messages:
    5,557
    Location:
    Staines, Middlesex, England.
    I used this formula for working out surface feet per minute of my bandsaw blades:

    FORMULA TO FIND S.F.P.M. IS: MOTOR R.P.M. X MOTOR PULLEY DIAMETER : DRIVEN PULLEY DIAMETER X BAND SAW WHEEL DIAMETER X 3.1416 : 12 = S.F.P.M.
     
    RedOrZed likes this.
  8. RedOrZed Member

    Messages:
    301
    Milton Keyneses

    So, this is the 1st time I've stuck my head in the drive section in years.

    Looking at it, there's no way I can afford to replace the motor. But, with a change of driving pulleys, and maybe a change of chain drive gear wheels, a great slow down should be possible?

    Any easier ways anyone can think of ?
     
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